[{"_id":"64678","project":[{"name":"TRR 285 - Project Area A","_id":"131"},{"name":"TRR 285 - Project Area C","_id":"133"},{"_id":"136","name":"TRR 285 - Subproject A02"},{"name":"TRR 285 - Subproject C02","_id":"146"},{"_id":"130","name":"TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten"}],"department":[{"_id":"43"},{"_id":"158"},{"_id":"157"},{"_id":"321"}],"user_id":"32340","article_type":"original","funded_apc":"1","type":"journal_article","status":"public","date_updated":"2026-02-26T11:22:03Z","volume":164,"author":[{"last_name":"Neuser","full_name":"Neuser, Moritz","id":"32340","first_name":"Moritz"},{"last_name":"Kaimann","full_name":"Kaimann, Pia Katharina","id":"44935","first_name":"Pia Katharina"},{"last_name":"Stratmann","full_name":"Stratmann, Ina","first_name":"Ina"},{"first_name":"Mathias","last_name":"Bobbert","full_name":"Bobbert, Mathias","id":"7850"},{"last_name":"Klöckner","full_name":"Klöckner, Johann Moritz Benedikt","first_name":"Johann Moritz Benedikt"},{"full_name":"Mann, Moritz","last_name":"Mann","first_name":"Moritz"},{"id":"48411","full_name":"Hoyer, Kay-Peter","last_name":"Hoyer","first_name":"Kay-Peter"},{"first_name":"Gerson","orcid":"0000-0002-2763-1246","last_name":"Meschut","id":"32056","full_name":"Meschut, Gerson"},{"last_name":"Schaper","id":"43720","full_name":"Schaper, Mirko","first_name":"Mirko"}],"doi":"https://doi.org/10.1016/j.jmapro.2026.02.040","publication_status":"published","intvolume":"       164","citation":{"apa":"Neuser, M., Kaimann, P. K., Stratmann, I., Bobbert, M., Klöckner, J. M. B., Mann, M., Hoyer, K.-P., Meschut, G., &#38; Schaper, M. (2026). Solidification-joinability correlation of hypoeutectic aluminium casting alloys for self-piercing riveting (SPR). <i>Journal of Manufacturing Processes</i>, <i>164</i>. <a href=\"https://doi.org/10.1016/j.jmapro.2026.02.040\">https://doi.org/10.1016/j.jmapro.2026.02.040</a>","ama":"Neuser M, Kaimann PK, Stratmann I, et al. Solidification-joinability correlation of hypoeutectic aluminium casting alloys for self-piercing riveting (SPR). <i>Journal of Manufacturing Processes</i>. 2026;164. doi:<a href=\"https://doi.org/10.1016/j.jmapro.2026.02.040\">https://doi.org/10.1016/j.jmapro.2026.02.040</a>","short":"M. Neuser, P.K. Kaimann, I. Stratmann, M. Bobbert, J.M.B. Klöckner, M. Mann, K.-P. Hoyer, G. Meschut, M. Schaper, Journal of Manufacturing Processes 164 (2026).","bibtex":"@article{Neuser_Kaimann_Stratmann_Bobbert_Klöckner_Mann_Hoyer_Meschut_Schaper_2026, title={Solidification-joinability correlation of hypoeutectic aluminium casting alloys for self-piercing riveting (SPR)}, volume={164}, DOI={<a href=\"https://doi.org/10.1016/j.jmapro.2026.02.040\">https://doi.org/10.1016/j.jmapro.2026.02.040</a>}, journal={Journal of Manufacturing Processes}, publisher={Elsevier}, author={Neuser, Moritz and Kaimann, Pia Katharina and Stratmann, Ina and Bobbert, Mathias and Klöckner, Johann Moritz Benedikt and Mann, Moritz and Hoyer, Kay-Peter and Meschut, Gerson and Schaper, Mirko}, year={2026} }","mla":"Neuser, Moritz, et al. “Solidification-Joinability Correlation of Hypoeutectic Aluminium Casting Alloys for Self-Piercing Riveting (SPR).” <i>Journal of Manufacturing Processes</i>, vol. 164, Elsevier, 2026, doi:<a href=\"https://doi.org/10.1016/j.jmapro.2026.02.040\">https://doi.org/10.1016/j.jmapro.2026.02.040</a>.","ieee":"M. Neuser <i>et al.</i>, “Solidification-joinability correlation of hypoeutectic aluminium casting alloys for self-piercing riveting (SPR),” <i>Journal of Manufacturing Processes</i>, vol. 164, 2026, doi: <a href=\"https://doi.org/10.1016/j.jmapro.2026.02.040\">https://doi.org/10.1016/j.jmapro.2026.02.040</a>.","chicago":"Neuser, Moritz, Pia Katharina Kaimann, Ina Stratmann, Mathias Bobbert, Johann Moritz Benedikt Klöckner, Moritz Mann, Kay-Peter Hoyer, Gerson Meschut, and Mirko Schaper. “Solidification-Joinability Correlation of Hypoeutectic Aluminium Casting Alloys for Self-Piercing Riveting (SPR).” <i>Journal of Manufacturing Processes</i> 164 (2026). <a href=\"https://doi.org/10.1016/j.jmapro.2026.02.040\">https://doi.org/10.1016/j.jmapro.2026.02.040</a>."},"keyword":["Mechanical joining","Aluminium","Self-piercing riveting","Casting","Microstructure","Joinability AlSi-alloys"],"language":[{"iso":"eng"}],"publication":"Journal of Manufacturing Processes","abstract":[{"lang":"eng","text":"One of the major topics in the modern automotive industry is reducing emissions and increasing the mileage\r\nrange. To tackle this challenge, on the one hand, modifying the powertrain system is a possibility, and on the\r\nother hand, lightweight design offers various possibilities. Multi-Material Design (MMD) involves designing car\r\nbodies that combine different materials that require joining. Given the variety of materials, mechanical joining\r\nprocesses are preferred. Especially the current development of the Giga/Mega-casting process concerning\r\naluminium casting and the subsequent mechanical joining illustrates the challenges of this material group. In car\r\nproduction, aluminium castings are mainly made from aluminium-silicon (AlSi) alloys. Ultimately, the alloy\r\nsystem's insufficient ductility leads to crack initiation during mechanical joining. Cast parts are therefore often\r\nused in areas of the car body that are exposed to high-pressure loads. For example, self-piercing riveting (SPR) is\r\nused due to its high load-bearing capacity. In this study, improved joinability is demonstrated by influencing the\r\nmicrostructure through tailored solidification rates and a developed heat-treatment chain strategy adapted for\r\nhypoeutectic AlSi systems. Data on microstructure, mechanical, and joining properties are used to develop a\r\nsolidification-joining correlation for the SPR process across a range of Si contents and solidification rates. The\r\npurpose is to develop the ability to produce suitable aluminium castings with sufficient joinability, thereby\r\nimproving versatility."}],"publisher":"Elsevier","date_created":"2026-02-26T11:21:24Z","title":"Solidification-joinability correlation of hypoeutectic aluminium casting alloys for self-piercing riveting (SPR)","quality_controlled":"1","year":"2026"},{"publication":"Journal of Advanced Joining Processes","abstract":[{"text":"Modern industrial development has necessitated a wide range of joining technologies. Self-pierce riveting has become a prevalent technique for sheet metal assembly, especially in automotive applications. Achieving proper joint geometry and adequate load-bearing capacity depends on appropriate tool selection and precise process control. Material properties and condition also play a significant role in process performance. To accommodate the inevitable variations in component characteristics during production, a robust and stable joining process is essential. The study focuses on investigating the influence of preformed joining partners on the joining process and the joint's load capacity. An EN AW-6014 in T4 condition, as well as an HCT590X, are used as materials for this study. For this purpose, an exemplary process chain consisting of the steps of performing, joining, and shear load testing is studied. Each process step is implemented using an FE model to predict the outcome of subsequent steps. For analysis of the influence of pre-strain, an optimisation software is used to plan and execute variations of the process. These variations are used to create a meta-model that can describe the relationships between pre-forming and characteristic parameters of subsequent process steps. The resulting model is validated by comparing simulation and experimental data. Finally, in a novel approach, the robustness of the presented process chain is analyzed in terms of a tolerable performance level for the joining partners.","lang":"eng"}],"keyword":["Self-pierce riveting","FE modelling","Plastic pre-deformation","Meta modelling"],"language":[{"iso":"eng"}],"quality_controlled":"1","year":"2026","publisher":"Elsevier BV","date_created":"2026-03-16T12:30:39Z","title":"Numerical analysis of the robustness of self-pierce riveting with pre-formed joining partners","type":"journal_article","status":"public","project":[{"_id":"131","name":"TRR 285 - Project Area A"},{"name":"TRR 285 - Subproject A01","_id":"135"},{"name":"TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten","_id":"130"}],"_id":"64985","user_id":"76631","department":[{"_id":"9"}],"article_number":"100391","publication_status":"published","publication_identifier":{"issn":["2666-3309"]},"citation":{"ieee":"J.-P. Ludwig, E. Tolke, M. C. Schlichter, M. Bobbert, and G. Meschut, “Numerical analysis of the robustness of self-pierce riveting with pre-formed joining partners,” <i>Journal of Advanced Joining Processes</i>, vol. 13, Art. no. 100391, 2026, doi: <a href=\"https://doi.org/10.1016/j.jajp.2026.100391\">10.1016/j.jajp.2026.100391</a>.","chicago":"Ludwig, Jean-Patrick, Emil Tolke, Malte Christian Schlichter, Mathias Bobbert, and Gerson Meschut. “Numerical Analysis of the Robustness of Self-Pierce Riveting with Pre-Formed Joining Partners.” <i>Journal of Advanced Joining Processes</i> 13 (2026). <a href=\"https://doi.org/10.1016/j.jajp.2026.100391\">https://doi.org/10.1016/j.jajp.2026.100391</a>.","ama":"Ludwig J-P, Tolke E, Schlichter MC, Bobbert M, Meschut G. Numerical analysis of the robustness of self-pierce riveting with pre-formed joining partners. <i>Journal of Advanced Joining Processes</i>. 2026;13. doi:<a href=\"https://doi.org/10.1016/j.jajp.2026.100391\">10.1016/j.jajp.2026.100391</a>","apa":"Ludwig, J.-P., Tolke, E., Schlichter, M. C., Bobbert, M., &#38; Meschut, G. (2026). Numerical analysis of the robustness of self-pierce riveting with pre-formed joining partners. <i>Journal of Advanced Joining Processes</i>, <i>13</i>, Article 100391. <a href=\"https://doi.org/10.1016/j.jajp.2026.100391\">https://doi.org/10.1016/j.jajp.2026.100391</a>","mla":"Ludwig, Jean-Patrick, et al. “Numerical Analysis of the Robustness of Self-Pierce Riveting with Pre-Formed Joining Partners.” <i>Journal of Advanced Joining Processes</i>, vol. 13, 100391, Elsevier BV, 2026, doi:<a href=\"https://doi.org/10.1016/j.jajp.2026.100391\">10.1016/j.jajp.2026.100391</a>.","bibtex":"@article{Ludwig_Tolke_Schlichter_Bobbert_Meschut_2026, title={Numerical analysis of the robustness of self-pierce riveting with pre-formed joining partners}, volume={13}, DOI={<a href=\"https://doi.org/10.1016/j.jajp.2026.100391\">10.1016/j.jajp.2026.100391</a>}, number={100391}, journal={Journal of Advanced Joining Processes}, publisher={Elsevier BV}, author={Ludwig, Jean-Patrick and Tolke, Emil and Schlichter, Malte Christian and Bobbert, Mathias and Meschut, Gerson}, year={2026} }","short":"J.-P. Ludwig, E. Tolke, M.C. Schlichter, M. Bobbert, G. Meschut, Journal of Advanced Joining Processes 13 (2026)."},"intvolume":"        13","date_updated":"2026-03-16T12:38:13Z","author":[{"first_name":"Jean-Patrick","last_name":"Ludwig","id":"76631","full_name":"Ludwig, Jean-Patrick"},{"full_name":"Tolke, Emil","last_name":"Tolke","first_name":"Emil"},{"last_name":"Schlichter","full_name":"Schlichter, Malte Christian","id":"61977","first_name":"Malte Christian"},{"first_name":"Mathias","full_name":"Bobbert, Mathias","id":"7850","last_name":"Bobbert"},{"last_name":"Meschut","orcid":"0000-0002-2763-1246","full_name":"Meschut, Gerson","id":"32056","first_name":"Gerson"}],"volume":13,"doi":"10.1016/j.jajp.2026.100391"},{"publisher":"Springer Science and Business Media LLC","date_created":"2026-04-08T08:25:32Z","title":"Influence of the shank geometry on the joint formation of the versatile self-piercing riveting of ultra-high-strength steel-aluminium and aluminium-aluminium assemblies","quality_controlled":"1","issue":"1","year":"2026","language":[{"iso":"eng"}],"publication":"Discover Mechanical Engineering","abstract":[{"lang":"eng","text":"To reduce CO₂ emissions, the automotive industry is adopting multi-material structures. Fusion-based joining reaches its limits for aluminium–steel due to brittle intermetallic phases and mismatched thermophysical properties; therefore, mechanical joining (e.g., SPR) is used. Though conventional SPR requires tool changes for different stack-ups. Versatile self-piercing riveting (V-SPR) addresses this with an extended punch actuator and a multi-range-capable rivet (Kappe in PERD16:363–378, 2022), enabling joints up to 600 MPa across varying thicknesses without retooling. With the use of ultra-high-strength steels up to 1000 MPa, optimisation is required. This study quantifies how rivet shank geometry affects joint formation using a design of experiments and validated 2D axisymmetric FE simulations. The optimum depends strongly on the material system. For CP1000–EN AW-6014, maximum interlock f is predicted for a medium shank thickness of about 0.73 mm, a small internal foot radius of 0.620 mm, and a deeper drill depth of 3.136 mm, yielding f fc =0.4503 mm with a desirability of 0.954. For EN AW-6014–EN AW-6014, the optimum shifts to a thinner shank of 0.670 mm, a larger internal foot radius of 0.820 mm and a shallow drill depth of 2.30 mm, giving ffc = 0.3023 mm with a desirability of 1.0. A compromise geometry of 0.713 mm shank thickness, 0.776 mm internal foot radius and 2.755 mm drill depth achieves ffc = 0.3641 mm for CP1000–aluminium and ffc = 0.1851 mm for aluminium–aluminium with an overall desirability D = 0.6378, expanding V-SPR to ultra-high-strength steel–aluminium joints while maintaining aluminium joinability."}],"date_updated":"2026-04-08T08:34:40Z","volume":5,"author":[{"id":"44935","full_name":"Kaimann, Pia Katharina","last_name":"Kaimann","first_name":"Pia Katharina"},{"full_name":"Ritter, Nico","last_name":"Ritter","first_name":"Nico"},{"id":"7850","full_name":"Bobbert, Mathias","last_name":"Bobbert","first_name":"Mathias"},{"first_name":"Gerson","full_name":"Meschut, Gerson","id":"32056","last_name":"Meschut","orcid":"0000-0002-2763-1246"}],"doi":"10.1007/s44245-026-00221-y","publication_identifier":{"issn":["2731-6564"]},"publication_status":"published","intvolume":"         5","citation":{"apa":"Kaimann, P. K., Ritter, N., Bobbert, M., &#38; Meschut, G. (2026). Influence of the shank geometry on the joint formation of the versatile self-piercing riveting of ultra-high-strength steel-aluminium and aluminium-aluminium assemblies. <i>Discover Mechanical Engineering</i>, <i>5</i>(1), Article 43. <a href=\"https://doi.org/10.1007/s44245-026-00221-y\">https://doi.org/10.1007/s44245-026-00221-y</a>","ama":"Kaimann PK, Ritter N, Bobbert M, Meschut G. Influence of the shank geometry on the joint formation of the versatile self-piercing riveting of ultra-high-strength steel-aluminium and aluminium-aluminium assemblies. <i>Discover Mechanical Engineering</i>. 2026;5(1). doi:<a href=\"https://doi.org/10.1007/s44245-026-00221-y\">10.1007/s44245-026-00221-y</a>","bibtex":"@article{Kaimann_Ritter_Bobbert_Meschut_2026, title={Influence of the shank geometry on the joint formation of the versatile self-piercing riveting of ultra-high-strength steel-aluminium and aluminium-aluminium assemblies}, volume={5}, DOI={<a href=\"https://doi.org/10.1007/s44245-026-00221-y\">10.1007/s44245-026-00221-y</a>}, number={143}, journal={Discover Mechanical Engineering}, publisher={Springer Science and Business Media LLC}, author={Kaimann, Pia Katharina and Ritter, Nico and Bobbert, Mathias and Meschut, Gerson}, year={2026} }","short":"P.K. Kaimann, N. Ritter, M. Bobbert, G. Meschut, Discover Mechanical Engineering 5 (2026).","mla":"Kaimann, Pia Katharina, et al. “Influence of the Shank Geometry on the Joint Formation of the Versatile Self-Piercing Riveting of Ultra-High-Strength Steel-Aluminium and Aluminium-Aluminium Assemblies.” <i>Discover Mechanical Engineering</i>, vol. 5, no. 1, 43, Springer Science and Business Media LLC, 2026, doi:<a href=\"https://doi.org/10.1007/s44245-026-00221-y\">10.1007/s44245-026-00221-y</a>.","ieee":"P. K. Kaimann, N. Ritter, M. Bobbert, and G. Meschut, “Influence of the shank geometry on the joint formation of the versatile self-piercing riveting of ultra-high-strength steel-aluminium and aluminium-aluminium assemblies,” <i>Discover Mechanical Engineering</i>, vol. 5, no. 1, Art. no. 43, 2026, doi: <a href=\"https://doi.org/10.1007/s44245-026-00221-y\">10.1007/s44245-026-00221-y</a>.","chicago":"Kaimann, Pia Katharina, Nico Ritter, Mathias Bobbert, and Gerson Meschut. “Influence of the Shank Geometry on the Joint Formation of the Versatile Self-Piercing Riveting of Ultra-High-Strength Steel-Aluminium and Aluminium-Aluminium Assemblies.” <i>Discover Mechanical Engineering</i> 5, no. 1 (2026). <a href=\"https://doi.org/10.1007/s44245-026-00221-y\">https://doi.org/10.1007/s44245-026-00221-y</a>."},"_id":"65373","project":[{"name":"TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten","_id":"130"},{"_id":"133","name":"TRR 285 - Project Area C"},{"name":"TRR 285 - Subproject C02","_id":"146"}],"department":[{"_id":"43"},{"_id":"157"}],"user_id":"44935","article_number":"43","type":"journal_article","status":"public"},{"doi":"10.1177/14644207241307508","title":"Investigation of local heat treatment strategies for a multi-range capable rivet and the influence on joint formation and load-bearing capacity","date_created":"2025-02-03T09:26:32Z","author":[{"first_name":"Pia Katharina","full_name":"Holtkamp, Pia Katharina","id":"44935","last_name":"Holtkamp"},{"first_name":"Fabian","id":"66459","full_name":"Kappe, Fabian","last_name":"Kappe"},{"first_name":"Paula","full_name":"Probst, Paula","last_name":"Probst"},{"full_name":"Bobbert, Mathias","id":"7850","last_name":"Bobbert","first_name":"Mathias"},{"last_name":"Meschut","orcid":"0000-0002-2763-1246","full_name":"Meschut, Gerson","id":"32056","first_name":"Gerson"}],"date_updated":"2025-02-03T09:36:32Z","publisher":"SAGE Publications","citation":{"ama":"Holtkamp PK, Kappe F, Probst P, Bobbert M, Meschut G. Investigation of local heat treatment strategies for a multi-range capable rivet and the influence on joint formation and load-bearing capacity. <i>Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications</i>. Published online 2025. doi:<a href=\"https://doi.org/10.1177/14644207241307508\">10.1177/14644207241307508</a>","chicago":"Holtkamp, Pia Katharina, Fabian Kappe, Paula Probst, Mathias Bobbert, and Gerson Meschut. “Investigation of Local Heat Treatment Strategies for a Multi-Range Capable Rivet and the Influence on Joint Formation and Load-Bearing Capacity.” <i>Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications</i>, 2025. <a href=\"https://doi.org/10.1177/14644207241307508\">https://doi.org/10.1177/14644207241307508</a>.","ieee":"P. K. Holtkamp, F. Kappe, P. Probst, M. Bobbert, and G. Meschut, “Investigation of local heat treatment strategies for a multi-range capable rivet and the influence on joint formation and load-bearing capacity,” <i>Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications</i>, 2025, doi: <a href=\"https://doi.org/10.1177/14644207241307508\">10.1177/14644207241307508</a>.","apa":"Holtkamp, P. K., Kappe, F., Probst, P., Bobbert, M., &#38; Meschut, G. (2025). Investigation of local heat treatment strategies for a multi-range capable rivet and the influence on joint formation and load-bearing capacity. <i>Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications</i>. <a href=\"https://doi.org/10.1177/14644207241307508\">https://doi.org/10.1177/14644207241307508</a>","mla":"Holtkamp, Pia Katharina, et al. “Investigation of Local Heat Treatment Strategies for a Multi-Range Capable Rivet and the Influence on Joint Formation and Load-Bearing Capacity.” <i>Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications</i>, SAGE Publications, 2025, doi:<a href=\"https://doi.org/10.1177/14644207241307508\">10.1177/14644207241307508</a>.","short":"P.K. Holtkamp, F. Kappe, P. Probst, M. Bobbert, G. Meschut, Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications (2025).","bibtex":"@article{Holtkamp_Kappe_Probst_Bobbert_Meschut_2025, title={Investigation of local heat treatment strategies for a multi-range capable rivet and the influence on joint formation and load-bearing capacity}, DOI={<a href=\"https://doi.org/10.1177/14644207241307508\">10.1177/14644207241307508</a>}, journal={Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications}, publisher={SAGE Publications}, author={Holtkamp, Pia Katharina and Kappe, Fabian and Probst, Paula and Bobbert, Mathias and Meschut, Gerson}, year={2025} }"},"year":"2025","publication_status":"published","publication_identifier":{"issn":["1464-4207","2041-3076"]},"quality_controlled":"1","language":[{"iso":"eng"}],"user_id":"44935","department":[{"_id":"43"},{"_id":"157"}],"project":[{"_id":"133","name":"TRR 285 - C: TRR 285 - Project Area C"},{"name":"TRR 285: TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten","_id":"130","grant_number":"418701707"}],"_id":"58495","status":"public","abstract":[{"lang":"eng","text":"<jats:p> To reduce CO<jats:sub>2</jats:sub> emissions, the industry, particularly in the mobility sector, focuses on lightweight vehicles with multi-material structures. As thermal joining processes are reaching their limits, mechanical techniques such as self-piercing riveting are being used. One innovative solution is the versatile self-piercing riveting process (V-SPR), which combines different material combinations with a multi-range rivet.<jats:sup> 1 </jats:sup> The joining process is divided into the piercing process and the forming process of the rivet head to the respective sheet thickness. The rivet shaft requires sufficient strength to punch through the punch-sided sheet, and sufficient ductility of the rivet head is required to form onto the punch-sided sheet. To achieve a combination of these requirements, local inductive heat treatment strategies are used for the rivet. To ensure reproducible rivet hardening, a specialised device has been developed for precise rivet positioning in the induction coil and the subsequent quenching process. The heat treatment differs in terms of hardening times and temperatures. In addition, the heat treatment is combined with a subsequent tempering process. The study aims to determine the resulting hardness distributions and microstructures of the rivet and to investigate the influence of different heat treatment strategies on joint formation and load-bearing capacities. The results show that a graded hardening profile has a positive effect on the spreading behaviour of the rivet foot and the forming behaviour of the rivet head. Furthermore, the load-bearing behaviour of the joints is increased. </jats:p>"}],"type":"journal_article","publication":"Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications"},{"abstract":[{"lang":"eng","text":"Lightweight design is a driving concept in modern automotive engineering to minimize resource consumption over a vehicle's lifecycle through multi-material design, which relies on the use of joining techniques in car body fabrication. Multi-material design and the increasing trend towards producing large structural components using the megacasting process pose considerable challenges, particularly in the mechanical joining of aluminium-silicon (AlSi) castings. These castings typically exhibit low ductility and are prone to cracking when mechanically joined. Based on the excellent castability of hypoeutectic AlSi alloys, these are applied in sand casting and die casting as well as in megacasting. With a silicon content between 7 wt% and 12 wt%, these AlSi-alloys have a plate-like silicon phase that initiates cracks during mechanical joining. To enhance the joinability of castings, the research hypothesis is that improved solidification conditions enable a significant modification in the microstructure and therefore, increase the mechanical properties. During the manufacture of the castings using the sand casting process, the solidification conditions within the structural elements are varied to modify the microstructure to obtain castings with graded microstructure. The castings are evaluated using mechanical, microstructural and joining testing methods and finally, a microstructure-joinability correlation is established."}],"publication":"44th Conference of the International Deep Drawing Research Group (IDDRG 2025)","keyword":["Joining","Casting","Self-pierce riveting","Aluminium casting alloy"],"language":[{"iso":"eng"}],"year":"2025","quality_controlled":"1","title":"Mechanical joinability of microstructurally graded structural components manufactured from hypoeutectic aluminium casting alloys","date_created":"2025-05-12T15:21:06Z","status":"public","type":"journal_article","article_type":"original","article_number":"01081","project":[{"_id":"131","name":"TRR 285 - A: TRR 285 - Project Area A"},{"name":"TRR 285 – A02: TRR 285 - Subproject A02","_id":"136"},{"name":"TRR 285 – A01: TRR 285 - Subproject A01","_id":"135"},{"name":"TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten","_id":"130"}],"_id":"59872","user_id":"7850","department":[{"_id":"43"},{"_id":"158"},{"_id":"157"},{"_id":"9"},{"_id":"321"}],"citation":{"ieee":"M. Neuser, M. C. Schlichter, K.-P. Hoyer, M. Bobbert, G. Meschut, and M. Schaper, “Mechanical joinability of microstructurally graded structural components manufactured from hypoeutectic aluminium casting alloys,” <i>44th Conference of the International Deep Drawing Research Group (IDDRG 2025)</i>, vol. 408, Art. no. 01081, 2025, doi: <a href=\"https://doi.org/10.1051/matecconf/202540801081\">10.1051/matecconf/202540801081</a>.","chicago":"Neuser, Moritz, Malte Christian Schlichter, Kay-Peter Hoyer, Mathias Bobbert, Gerson Meschut, and Mirko Schaper. “Mechanical Joinability of Microstructurally Graded Structural Components Manufactured from Hypoeutectic Aluminium Casting Alloys.” <i>44th Conference of the International Deep Drawing Research Group (IDDRG 2025)</i> 408 (2025). <a href=\"https://doi.org/10.1051/matecconf/202540801081\">https://doi.org/10.1051/matecconf/202540801081</a>.","ama":"Neuser M, Schlichter MC, Hoyer K-P, Bobbert M, Meschut G, Schaper M. Mechanical joinability of microstructurally graded structural components manufactured from hypoeutectic aluminium casting alloys. <i>44th Conference of the International Deep Drawing Research Group (IDDRG 2025)</i>. 2025;408. doi:<a href=\"https://doi.org/10.1051/matecconf/202540801081\">10.1051/matecconf/202540801081</a>","apa":"Neuser, M., Schlichter, M. C., Hoyer, K.-P., Bobbert, M., Meschut, G., &#38; Schaper, M. (2025). Mechanical joinability of microstructurally graded structural components manufactured from hypoeutectic aluminium casting alloys. <i>44th Conference of the International Deep Drawing Research Group (IDDRG 2025)</i>, <i>408</i>, Article 01081. <a href=\"https://doi.org/10.1051/matecconf/202540801081\">https://doi.org/10.1051/matecconf/202540801081</a>","bibtex":"@article{Neuser_Schlichter_Hoyer_Bobbert_Meschut_Schaper_2025, title={Mechanical joinability of microstructurally graded structural components manufactured from hypoeutectic aluminium casting alloys}, volume={408}, DOI={<a href=\"https://doi.org/10.1051/matecconf/202540801081\">10.1051/matecconf/202540801081</a>}, number={01081}, journal={44th Conference of the International Deep Drawing Research Group (IDDRG 2025)}, author={Neuser, Moritz and Schlichter, Malte Christian and Hoyer, Kay-Peter and Bobbert, Mathias and Meschut, Gerson and Schaper, Mirko}, year={2025} }","mla":"Neuser, Moritz, et al. “Mechanical Joinability of Microstructurally Graded Structural Components Manufactured from Hypoeutectic Aluminium Casting Alloys.” <i>44th Conference of the International Deep Drawing Research Group (IDDRG 2025)</i>, vol. 408, 01081, 2025, doi:<a href=\"https://doi.org/10.1051/matecconf/202540801081\">10.1051/matecconf/202540801081</a>.","short":"M. Neuser, M.C. Schlichter, K.-P. Hoyer, M. Bobbert, G. Meschut, M. Schaper, 44th Conference of the International Deep Drawing Research Group (IDDRG 2025) 408 (2025)."},"intvolume":"       408","publication_status":"published","main_file_link":[{"url":"\thttps://doi.org/10.1051/matecconf/202540801081","open_access":"1"}],"doi":"10.1051/matecconf/202540801081","conference":{"location":"Lissabon (Portugal)","end_date":"2025-06-05","start_date":"2025-06-02","name":"44th Conference of the International Deep Drawing Research Group (IDDRG 2025)"},"oa":"1","date_updated":"2026-02-24T13:41:58Z","author":[{"full_name":"Neuser, Moritz","id":"32340","last_name":"Neuser","first_name":"Moritz"},{"full_name":"Schlichter, Malte Christian","id":"61977","last_name":"Schlichter","first_name":"Malte Christian"},{"first_name":"Kay-Peter","full_name":"Hoyer, Kay-Peter","id":"48411","last_name":"Hoyer"},{"last_name":"Bobbert","id":"7850","full_name":"Bobbert, Mathias","first_name":"Mathias"},{"first_name":"Gerson","last_name":"Meschut","orcid":"0000-0002-2763-1246","full_name":"Meschut, Gerson","id":"32056"},{"full_name":"Schaper, Mirko","id":"43720","last_name":"Schaper","first_name":"Mirko"}],"volume":408},{"abstract":[{"lang":"eng","text":"<jats:p>Abstract. In the development of advanced lightweight automotive solutions, self-piercing riveting (SPR) offers the possibility of joining multi-material structures to fulfil a wide variety of requirements. With regard to the entire process chain, production-related pre-deformations of the parts to be joined can influence the geometric shape and load capacity of SPR joints. Various studies have investigated the influence of pre-stretched sheet materials, in the sense of pre-drawing processes, on the formation of SPR joints. The impact of pre-stretching sheet metals on the formation of their geometrical characteristics and the shear-tensile strength of SPR processes was observed [1]. Pre-rolled semi-finished products are also joined together in mixed material automotive structures, e.g. tailor rolled blanks. This work aims to investigate the influence of pre-rolled joining parts on the geometric formation and load-carrying capacity of SPR joints. For this purpose, sheets of metal are cold-formed using a rolling process to induce a defined strain-hardening state in the material and then joined in various combinations. As the degree of deformation increases, the rolling of samples can lead to minimal accumulation of damage in the sheet materials, which can influence the joint behaviour. The rolling process, as well as the subsequent joining process, are also investigated by FEM. The influence of pre-rolled semi-finished products on the strength of the SPR joints is investigated.</jats:p>"}],"publication":"Materials Research Proceedings","language":[{"iso":"eng"}],"year":"2025","quality_controlled":"1","title":"Experimental and numerical investigation of the influence of rolling-induced sheet metal deformation on SPR joints","date_created":"2025-05-13T06:54:20Z","publisher":"Materials Research Forum LLC","status":"public","type":"conference","department":[{"_id":"157"}],"user_id":"7850","_id":"59878","project":[{"name":"TRR 285 - A: TRR 285 - Project Area A","_id":"131"},{"_id":"135","name":"TRR 285 – A01: TRR 285 - Subproject A01"},{"_id":"130","name":"TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten"}],"intvolume":"        54","citation":{"ama":"Schlichter MC, Harabati Ö, Ludwig J-P, et al. Experimental and numerical investigation of the influence of rolling-induced sheet metal deformation on SPR joints. In: <i>Materials Research Proceedings</i>. Vol 54. Materials Research Forum LLC; 2025. doi:<a href=\"https://doi.org/10.21741/9781644903599-148\">10.21741/9781644903599-148</a>","ieee":"M. C. Schlichter <i>et al.</i>, “Experimental and numerical investigation of the influence of rolling-induced sheet metal deformation on SPR joints,” in <i>Materials Research Proceedings</i>, 2025, vol. 54, doi: <a href=\"https://doi.org/10.21741/9781644903599-148\">10.21741/9781644903599-148</a>.","chicago":"Schlichter, Malte Christian, Özcan Harabati, Jean-Patrick Ludwig, Max Böhnke, Christian Roman Bielak, Mathias Bobbert, and Gerson Meschut. “Experimental and Numerical Investigation of the Influence of Rolling-Induced Sheet Metal Deformation on SPR Joints.” In <i>Materials Research Proceedings</i>, Vol. 54. Paestum: Materials Research Forum LLC, 2025. <a href=\"https://doi.org/10.21741/9781644903599-148\">https://doi.org/10.21741/9781644903599-148</a>.","bibtex":"@inproceedings{Schlichter_Harabati_Ludwig_Böhnke_Bielak_Bobbert_Meschut_2025, place={Paestum}, title={Experimental and numerical investigation of the influence of rolling-induced sheet metal deformation on SPR joints}, volume={54}, DOI={<a href=\"https://doi.org/10.21741/9781644903599-148\">10.21741/9781644903599-148</a>}, booktitle={Materials Research Proceedings}, publisher={Materials Research Forum LLC}, author={Schlichter, Malte Christian and Harabati, Özcan and Ludwig, Jean-Patrick and Böhnke, Max and Bielak, Christian Roman and Bobbert, Mathias and Meschut, Gerson}, year={2025} }","short":"M.C. Schlichter, Ö. Harabati, J.-P. Ludwig, M. Böhnke, C.R. Bielak, M. Bobbert, G. Meschut, in: Materials Research Proceedings, Materials Research Forum LLC, Paestum, 2025.","mla":"Schlichter, Malte Christian, et al. “Experimental and Numerical Investigation of the Influence of Rolling-Induced Sheet Metal Deformation on SPR Joints.” <i>Materials Research Proceedings</i>, vol. 54, Materials Research Forum LLC, 2025, doi:<a href=\"https://doi.org/10.21741/9781644903599-148\">10.21741/9781644903599-148</a>.","apa":"Schlichter, M. C., Harabati, Ö., Ludwig, J.-P., Böhnke, M., Bielak, C. R., Bobbert, M., &#38; Meschut, G. (2025). Experimental and numerical investigation of the influence of rolling-induced sheet metal deformation on SPR joints. <i>Materials Research Proceedings</i>, <i>54</i>. <a href=\"https://doi.org/10.21741/9781644903599-148\">https://doi.org/10.21741/9781644903599-148</a>"},"place":"Paestum","publication_identifier":{"issn":["2474-395X"]},"publication_status":"published","doi":"10.21741/9781644903599-148","volume":54,"author":[{"full_name":"Schlichter, Malte Christian","id":"61977","last_name":"Schlichter","first_name":"Malte Christian"},{"last_name":"Harabati","full_name":"Harabati, Özcan","first_name":"Özcan"},{"first_name":"Jean-Patrick","id":"76631","full_name":"Ludwig, Jean-Patrick","last_name":"Ludwig"},{"first_name":"Max","last_name":"Böhnke","full_name":"Böhnke, Max","id":"45779"},{"first_name":"Christian Roman","id":"34782","full_name":"Bielak, Christian Roman","last_name":"Bielak"},{"first_name":"Mathias","full_name":"Bobbert, Mathias","id":"7850","last_name":"Bobbert"},{"first_name":"Gerson","last_name":"Meschut","orcid":"0000-0002-2763-1246","full_name":"Meschut, Gerson","id":"32056"}],"date_updated":"2026-02-24T13:42:57Z"},{"department":[{"_id":"157"}],"user_id":"7850","_id":"60977","project":[{"name":"TRR 285 - Subproject A01","_id":"135"},{"_id":"131","name":"TRR 285 - Project Area A"},{"_id":"130","name":"TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten"}],"language":[{"iso":"eng"}],"publication":"Materials Research Proceedings","type":"conference","status":"public","abstract":[{"lang":"eng","text":"In the development of advanced lightweight automotive solutions, self-piercing riveting (SPR) offers the possibility of joining multi-material structures to fulfil a wide variety of requirements. With regard to the entire process chain, production-related pre-deformations of the parts to be joined can influence the geometric shape and load capacity of SPR joints. Various studies have investigated the influence of pre-stretched sheet materials, in the sense of pre-drawing processes, on the formation of SPR joints. The impact of pre-stretching sheet metals on the formation of their geometrical characteristics and the shear-tensile strength of SPR processes was observed [1]. Pre-rolled semi-finished products are also joined together in mixed material automotive structures, e.g. tailor rolled blanks. This work aims to investigate the influence of pre-rolled joining parts on the geometric formation and load-carrying capacity of SPR joints. For this purpose, sheets of metal are cold-formed using a rolling process to induce a defined strain-hardening state in the material and then joined in various combinations. As the degree of deformation increases, the rolling of samples can lead to minimal accumulation of damage in the sheet materials, which can influence the joint behaviour. The rolling process, as well as the subsequent joining process, are also investigated by FEM. The influence of pre-rolled semi-finished products on the strength of the SPR joints is investigated.</jats:p>"}],"volume":54,"author":[{"first_name":"Malte Christian","last_name":"Schlichter","id":"61977","full_name":"Schlichter, Malte Christian"},{"full_name":"Harabati, Özcan","id":"54972","last_name":"Harabati","first_name":"Özcan"},{"first_name":"Jean-Patrick","id":"76631","full_name":"Ludwig, Jean-Patrick","last_name":"Ludwig"},{"first_name":"Max","id":"45779","full_name":"Böhnke, Max","last_name":"Böhnke"},{"first_name":"Christian Roman","last_name":"Bielak","full_name":"Bielak, Christian Roman","id":"34782"},{"first_name":"Mathias","last_name":"Bobbert","full_name":"Bobbert, Mathias","id":"7850"},{"id":"32056","full_name":"Meschut, Gerson","orcid":"0000-0002-2763-1246","last_name":"Meschut","first_name":"Gerson"}],"date_created":"2025-08-22T10:20:15Z","publisher":"Materials Research Forum LLC","date_updated":"2026-02-24T14:02:01Z","doi":"10.21741/9781644903599-148","title":"Experimental and numerical investigation of the influence of rolling-induced sheet metal deformation on SPR joints","quality_controlled":"1","publication_identifier":{"issn":["2474-395X"]},"publication_status":"published","intvolume":"        54","citation":{"ama":"Schlichter MC, Harabati Ö, Ludwig J-P, et al. Experimental and numerical investigation of the influence of rolling-induced sheet metal deformation on SPR joints. In: <i>Materials Research Proceedings</i>. Vol 54. Materials Research Forum LLC; 2025. doi:<a href=\"https://doi.org/10.21741/9781644903599-148\">10.21741/9781644903599-148</a>","ieee":"M. C. Schlichter <i>et al.</i>, “Experimental and numerical investigation of the influence of rolling-induced sheet metal deformation on SPR joints,” in <i>Materials Research Proceedings</i>, 2025, vol. 54, doi: <a href=\"https://doi.org/10.21741/9781644903599-148\">10.21741/9781644903599-148</a>.","chicago":"Schlichter, Malte Christian, Özcan Harabati, Jean-Patrick Ludwig, Max Böhnke, Christian Roman Bielak, Mathias Bobbert, and Gerson Meschut. “Experimental and Numerical Investigation of the Influence of Rolling-Induced Sheet Metal Deformation on SPR Joints.” In <i>Materials Research Proceedings</i>, Vol. 54. Materials Research Forum LLC, 2025. <a href=\"https://doi.org/10.21741/9781644903599-148\">https://doi.org/10.21741/9781644903599-148</a>.","apa":"Schlichter, M. C., Harabati, Ö., Ludwig, J.-P., Böhnke, M., Bielak, C. R., Bobbert, M., &#38; Meschut, G. (2025). Experimental and numerical investigation of the influence of rolling-induced sheet metal deformation on SPR joints. <i>Materials Research Proceedings</i>, <i>54</i>. <a href=\"https://doi.org/10.21741/9781644903599-148\">https://doi.org/10.21741/9781644903599-148</a>","mla":"Schlichter, Malte Christian, et al. “Experimental and Numerical Investigation of the Influence of Rolling-Induced Sheet Metal Deformation on SPR Joints.” <i>Materials Research Proceedings</i>, vol. 54, Materials Research Forum LLC, 2025, doi:<a href=\"https://doi.org/10.21741/9781644903599-148\">10.21741/9781644903599-148</a>.","bibtex":"@inproceedings{Schlichter_Harabati_Ludwig_Böhnke_Bielak_Bobbert_Meschut_2025, title={Experimental and numerical investigation of the influence of rolling-induced sheet metal deformation on SPR joints}, volume={54}, DOI={<a href=\"https://doi.org/10.21741/9781644903599-148\">10.21741/9781644903599-148</a>}, booktitle={Materials Research Proceedings}, publisher={Materials Research Forum LLC}, author={Schlichter, Malte Christian and Harabati, Özcan and Ludwig, Jean-Patrick and Böhnke, Max and Bielak, Christian Roman and Bobbert, Mathias and Meschut, Gerson}, year={2025} }","short":"M.C. Schlichter, Ö. Harabati, J.-P. Ludwig, M. Böhnke, C.R. Bielak, M. Bobbert, G. Meschut, in: Materials Research Proceedings, Materials Research Forum LLC, 2025."},"year":"2025"},{"status":"public","abstract":[{"text":"The present study is an experimental analysis of the influence of pre-forming on the failure behaviour of clinched specimens under quasi-static and cyclic loading conditions. In this context, the geometric formation of the clinched joints is taken into account, with regard to the loading behaviour. The study also includes a comparison of the failure behaviour of quasi-static and cyclic tested specimen. Testing is done on non-pre-deformed and pre-deformed specimens. For this purpose, experimental investigations are carried out on two material combinations consisting of HCT590X steel sheet and EN AW-6014 T4 aluminium sheet. The focus is on the fatigue analysis of the clinched joints. The aim is to identify the failure modes under cyclic loading and the crack formation with regard to forming operations prior to the joining process. The investigations show that the cyclic load-bearing behaviour of the HCT590X joints is reduced by introducing a plastic pre-deformation of the to be joined parts.</jats:p>","lang":"eng"}],"type":"conference","publication":"Materials Research Proceedings","language":[{"iso":"eng"}],"user_id":"7850","department":[{"_id":"157"}],"project":[{"_id":"131","name":"TRR 285 - Project Area A"},{"name":"TRR 285 - Subproject A01","_id":"135"},{"_id":"130","name":"TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten"}],"_id":"60978","citation":{"ieee":"M. C. Schlichter, Ö. Harabati, M. Böhnke, C. R. Bielak, M. Bobbert, and G. Meschut, “Investigation on manufacturing-induced pre-deformation on the fatigue behaviour of clinched joints,” in <i>Materials Research Proceedings</i>, 2025, vol. 52, doi: <a href=\"https://doi.org/10.21741/9781644903551-16\">10.21741/9781644903551-16</a>.","chicago":"Schlichter, Malte Christian, Özcan Harabati, Max Böhnke, Christian Roman Bielak, Mathias Bobbert, and Gerson Meschut. “Investigation on Manufacturing-Induced Pre-Deformation on the Fatigue Behaviour of Clinched Joints.” In <i>Materials Research Proceedings</i>, Vol. 52. Materials Research Forum LLC, 2025. <a href=\"https://doi.org/10.21741/9781644903551-16\">https://doi.org/10.21741/9781644903551-16</a>.","ama":"Schlichter MC, Harabati Ö, Böhnke M, Bielak CR, Bobbert M, Meschut G. Investigation on manufacturing-induced pre-deformation on the fatigue behaviour of clinched joints. In: <i>Materials Research Proceedings</i>. Vol 52. Materials Research Forum LLC; 2025. doi:<a href=\"https://doi.org/10.21741/9781644903551-16\">10.21741/9781644903551-16</a>","apa":"Schlichter, M. C., Harabati, Ö., Böhnke, M., Bielak, C. R., Bobbert, M., &#38; Meschut, G. (2025). Investigation on manufacturing-induced pre-deformation on the fatigue behaviour of clinched joints. <i>Materials Research Proceedings</i>, <i>52</i>. <a href=\"https://doi.org/10.21741/9781644903551-16\">https://doi.org/10.21741/9781644903551-16</a>","bibtex":"@inproceedings{Schlichter_Harabati_Böhnke_Bielak_Bobbert_Meschut_2025, title={Investigation on manufacturing-induced pre-deformation on the fatigue behaviour of clinched joints}, volume={52}, DOI={<a href=\"https://doi.org/10.21741/9781644903551-16\">10.21741/9781644903551-16</a>}, booktitle={Materials Research Proceedings}, publisher={Materials Research Forum LLC}, author={Schlichter, Malte Christian and Harabati, Özcan and Böhnke, Max and Bielak, Christian Roman and Bobbert, Mathias and Meschut, Gerson}, year={2025} }","short":"M.C. Schlichter, Ö. Harabati, M. Böhnke, C.R. Bielak, M. Bobbert, G. Meschut, in: Materials Research Proceedings, Materials Research Forum LLC, 2025.","mla":"Schlichter, Malte Christian, et al. “Investigation on Manufacturing-Induced Pre-Deformation on the Fatigue Behaviour of Clinched Joints.” <i>Materials Research Proceedings</i>, vol. 52, Materials Research Forum LLC, 2025, doi:<a href=\"https://doi.org/10.21741/9781644903551-16\">10.21741/9781644903551-16</a>."},"intvolume":"        52","year":"2025","publication_status":"published","quality_controlled":"1","publication_identifier":{"issn":["2474-395X"]},"doi":"10.21741/9781644903551-16","title":"Investigation on manufacturing-induced pre-deformation on the fatigue behaviour of clinched joints","date_created":"2025-08-22T10:45:56Z","author":[{"full_name":"Schlichter, Malte Christian","id":"61977","last_name":"Schlichter","first_name":"Malte Christian"},{"first_name":"Özcan","last_name":"Harabati","full_name":"Harabati, Özcan","id":"54972"},{"id":"45779","full_name":"Böhnke, Max","last_name":"Böhnke","first_name":"Max"},{"first_name":"Christian Roman","full_name":"Bielak, Christian Roman","id":"34782","last_name":"Bielak"},{"first_name":"Mathias","last_name":"Bobbert","id":"7850","full_name":"Bobbert, Mathias"},{"first_name":"Gerson","full_name":"Meschut, Gerson","last_name":"Meschut"}],"volume":52,"publisher":"Materials Research Forum LLC","date_updated":"2026-02-24T14:02:35Z"},{"publisher":"Materials Research Forum LLC","date_updated":"2026-02-24T13:43:56Z","volume":52,"author":[{"full_name":"Chen, Chin","last_name":"Chen","first_name":"Chin"},{"first_name":"Malte Christian","last_name":"Schlichter","full_name":"Schlichter, Malte Christian","id":"61977"},{"full_name":"Harzheim, Sven","last_name":"Harzheim","first_name":"Sven"},{"last_name":"Hofmann","full_name":"Hofmann, Martin","first_name":"Martin"},{"first_name":"Mathias","id":"7850","full_name":"Bobbert, Mathias","last_name":"Bobbert"},{"first_name":"Gerson","last_name":"Meschut","orcid":"0000-0002-2763-1246","full_name":"Meschut, Gerson","id":"32056"},{"first_name":"Thomas","full_name":"Wallmersperger, Thomas","last_name":"Wallmersperger"}],"date_created":"2025-04-15T11:14:53Z","title":"High-cycle fatigue testing and parameter identification for numerical simulation of aluminum alloy EN AW-6014","doi":"10.21741/9781644903551-23","publication_identifier":{"issn":["2474-395X"]},"quality_controlled":"1","publication_status":"published","year":"2025","intvolume":"        52","citation":{"ama":"Chen C, Schlichter MC, Harzheim S, et al. High-cycle fatigue testing and parameter identification for numerical simulation of aluminum alloy EN AW-6014. In: <i>Materials Research Proceedings</i>. Vol 52. Materials Research Forum LLC; 2025. doi:<a href=\"https://doi.org/10.21741/9781644903551-23\">10.21741/9781644903551-23</a>","apa":"Chen, C., Schlichter, M. C., Harzheim, S., Hofmann, M., Bobbert, M., Meschut, G., &#38; Wallmersperger, T. (2025). High-cycle fatigue testing and parameter identification for numerical simulation of aluminum alloy EN AW-6014. <i>Materials Research Proceedings</i>, <i>52</i>. <a href=\"https://doi.org/10.21741/9781644903551-23\">https://doi.org/10.21741/9781644903551-23</a>","short":"C. Chen, M.C. Schlichter, S. Harzheim, M. Hofmann, M. Bobbert, G. Meschut, T. Wallmersperger, in: Materials Research Proceedings, Materials Research Forum LLC, 2025.","bibtex":"@inproceedings{Chen_Schlichter_Harzheim_Hofmann_Bobbert_Meschut_Wallmersperger_2025, title={High-cycle fatigue testing and parameter identification for numerical simulation of aluminum alloy EN AW-6014}, volume={52}, DOI={<a href=\"https://doi.org/10.21741/9781644903551-23\">10.21741/9781644903551-23</a>}, booktitle={Materials Research Proceedings}, publisher={Materials Research Forum LLC}, author={Chen, Chin and Schlichter, Malte Christian and Harzheim, Sven and Hofmann, Martin and Bobbert, Mathias and Meschut, Gerson and Wallmersperger, Thomas}, year={2025} }","mla":"Chen, Chin, et al. “High-Cycle Fatigue Testing and Parameter Identification for Numerical Simulation of Aluminum Alloy EN AW-6014.” <i>Materials Research Proceedings</i>, vol. 52, Materials Research Forum LLC, 2025, doi:<a href=\"https://doi.org/10.21741/9781644903551-23\">10.21741/9781644903551-23</a>.","chicago":"Chen, Chin, Malte Christian Schlichter, Sven Harzheim, Martin Hofmann, Mathias Bobbert, Gerson Meschut, and Thomas Wallmersperger. “High-Cycle Fatigue Testing and Parameter Identification for Numerical Simulation of Aluminum Alloy EN AW-6014.” In <i>Materials Research Proceedings</i>, Vol. 52. Materials Research Forum LLC, 2025. <a href=\"https://doi.org/10.21741/9781644903551-23\">https://doi.org/10.21741/9781644903551-23</a>.","ieee":"C. Chen <i>et al.</i>, “High-cycle fatigue testing and parameter identification for numerical simulation of aluminum alloy EN AW-6014,” in <i>Materials Research Proceedings</i>, 2025, vol. 52, doi: <a href=\"https://doi.org/10.21741/9781644903551-23\">10.21741/9781644903551-23</a>."},"_id":"59587","project":[{"_id":"131","name":"TRR 285 - A: TRR 285 - Project Area A"},{"name":"TRR 285 – A01: TRR 285 - Subproject A01","_id":"135"},{"_id":"130","name":"TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten"}],"department":[{"_id":"157"}],"user_id":"7850","language":[{"iso":"eng"}],"publication":"Materials Research Proceedings","type":"conference","abstract":[{"text":"Abstract. As a widely used sheet metal in clinched joints within the automotive industry, the aluminum alloy EN AW-6014 has been the focus of numerous studies. High-cycle fatigue (HCF) is a critical aspect when assessing the durability of clinched joints. In the present work, the HCF behavior of EN AW-6014 T4 was explored both experimentally and numerically. To model the fatigue behavior, Lemaitre’s two-scale damage model was used. Two key parameters, damage strength and damage exponent, are necessary for numerical investigations of HCF behavior. These parameters were determined through experiments with flat specimens and subsequently validated within a numerical model of clinched joints. The numerical results for fatigue match the experimental ones of the clinched joints quite well.</jats:p>","lang":"eng"}],"status":"public"},{"language":[{"iso":"eng"}],"user_id":"7850","_id":"60002","project":[{"_id":"131","name":"TRR 285 - A: TRR 285 - Project Area A"},{"_id":"135","name":"TRR 285 – A01: TRR 285 - Subproject A01"},{"name":"TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten","_id":"130"}],"status":"public","abstract":[{"text":"This study focuses on damage modeling across different mechanical joining processes within a process chain, specifically using clinching and self-pierce riveting (SPR). The aim is to apply a comprehensive model that captures the damage mechanisms and interactions in these technologies, optimizing them for enhanced performance and durability of aluminum joints. A GISSMO damage model was utilized, based on the stress states occurring during the joining process and a newly introduced damage testing method. This model was applied to both clinching and SPR processes. A detailed analysis of the stress states provided insights into their effect on the material. By incorporating these insights into the GISSMO model, improved accuracy in damage prediction was achieved. The model's application to clinching and SPR demonstrated its effectiveness in optimizing aluminum joint performance and durability, ensuring that the processes can be finely tuned to minimize damage and enhance joint quality.</jats:p>","lang":"eng"}],"publication":"Materials Research Proceedings","type":"conference","doi":"10.21741/9781644903551-19","title":"Cross-process damage modeling: A process-chain case study of clinching and self-pierced riveting for aluminum connections","volume":52,"date_created":"2025-05-20T12:50:34Z","author":[{"full_name":"Harabati, Özcan","id":"54972","last_name":"Harabati","first_name":"Özcan"},{"first_name":"Christian Roman","last_name":"Bielak","id":"34782","full_name":"Bielak, Christian Roman"},{"last_name":"Böhnke","id":"45779","full_name":"Böhnke, Max","first_name":"Max"},{"first_name":"Malte Christian","last_name":"Schlichter","id":"61977","full_name":"Schlichter, Malte Christian"},{"full_name":"Brockmeier, Marc","last_name":"Brockmeier","first_name":"Marc"},{"first_name":"Mathias","full_name":"Bobbert, Mathias","id":"7850","last_name":"Bobbert"},{"last_name":"Meschut","orcid":"0000-0002-2763-1246","full_name":"Meschut, Gerson","id":"32056","first_name":"Gerson"}],"publisher":"Materials Research Forum LLC","date_updated":"2026-02-24T13:59:43Z","intvolume":"        52","citation":{"ama":"Harabati Ö, Bielak CR, Böhnke M, et al. Cross-process damage modeling: A process-chain case study of clinching and self-pierced riveting for aluminum connections. In: <i>Materials Research Proceedings</i>. Vol 52. Materials Research Forum LLC; 2025. doi:<a href=\"https://doi.org/10.21741/9781644903551-19\">10.21741/9781644903551-19</a>","chicago":"Harabati, Özcan, Christian Roman Bielak, Max Böhnke, Malte Christian Schlichter, Marc Brockmeier, Mathias Bobbert, and Gerson Meschut. “Cross-Process Damage Modeling: A Process-Chain Case Study of Clinching and Self-Pierced Riveting for Aluminum Connections.” In <i>Materials Research Proceedings</i>, Vol. 52. Materials Research Forum LLC, 2025. <a href=\"https://doi.org/10.21741/9781644903551-19\">https://doi.org/10.21741/9781644903551-19</a>.","ieee":"Ö. Harabati <i>et al.</i>, “Cross-process damage modeling: A process-chain case study of clinching and self-pierced riveting for aluminum connections,” in <i>Materials Research Proceedings</i>, 2025, vol. 52, doi: <a href=\"https://doi.org/10.21741/9781644903551-19\">10.21741/9781644903551-19</a>.","apa":"Harabati, Ö., Bielak, C. R., Böhnke, M., Schlichter, M. C., Brockmeier, M., Bobbert, M., &#38; Meschut, G. (2025). Cross-process damage modeling: A process-chain case study of clinching and self-pierced riveting for aluminum connections. <i>Materials Research Proceedings</i>, <i>52</i>. <a href=\"https://doi.org/10.21741/9781644903551-19\">https://doi.org/10.21741/9781644903551-19</a>","short":"Ö. Harabati, C.R. Bielak, M. Böhnke, M.C. Schlichter, M. Brockmeier, M. Bobbert, G. Meschut, in: Materials Research Proceedings, Materials Research Forum LLC, 2025.","bibtex":"@inproceedings{Harabati_Bielak_Böhnke_Schlichter_Brockmeier_Bobbert_Meschut_2025, title={Cross-process damage modeling: A process-chain case study of clinching and self-pierced riveting for aluminum connections}, volume={52}, DOI={<a href=\"https://doi.org/10.21741/9781644903551-19\">10.21741/9781644903551-19</a>}, booktitle={Materials Research Proceedings}, publisher={Materials Research Forum LLC}, author={Harabati, Özcan and Bielak, Christian Roman and Böhnke, Max and Schlichter, Malte Christian and Brockmeier, Marc and Bobbert, Mathias and Meschut, Gerson}, year={2025} }","mla":"Harabati, Özcan, et al. “Cross-Process Damage Modeling: A Process-Chain Case Study of Clinching and Self-Pierced Riveting for Aluminum Connections.” <i>Materials Research Proceedings</i>, vol. 52, Materials Research Forum LLC, 2025, doi:<a href=\"https://doi.org/10.21741/9781644903551-19\">10.21741/9781644903551-19</a>."},"year":"2025","quality_controlled":"1","publication_identifier":{"issn":["2474-395X"]},"publication_status":"published"},{"title":"Application of stress-state-dependent ductile damage and failure model to clinch joining for a wide range of tool and material combinations","doi":"10.1016/j.jajp.2025.100299","date_updated":"2026-02-24T14:00:55Z","publisher":"Elsevier BV","date_created":"2025-04-15T11:00:56Z","author":[{"first_name":"Johannes","last_name":"Friedlein","full_name":"Friedlein, Johannes"},{"first_name":"Stephan","full_name":"Lüder, Stephan","last_name":"Lüder"},{"first_name":"Jan","full_name":"Kalich, Jan","last_name":"Kalich"},{"last_name":"Schmale","full_name":"Schmale, Hans Christian","first_name":"Hans Christian"},{"first_name":"Max","full_name":"Böhnke, Max","id":"45779","last_name":"Böhnke"},{"last_name":"Schlichter","full_name":"Schlichter, Malte Christian","id":"61977","first_name":"Malte Christian"},{"last_name":"Bobbert","full_name":"Bobbert, Mathias","id":"7850","first_name":"Mathias"},{"first_name":"Gerson","last_name":"Meschut","orcid":"0000-0002-2763-1246","full_name":"Meschut, Gerson","id":"32056"},{"first_name":"Paul","full_name":"Steinmann, Paul","last_name":"Steinmann"},{"full_name":"Mergheim, Julia","last_name":"Mergheim","first_name":"Julia"}],"volume":11,"year":"2025","citation":{"ieee":"J. Friedlein <i>et al.</i>, “Application of stress-state-dependent ductile damage and failure model to clinch joining for a wide range of tool and material combinations,” <i>Journal of Advanced Joining Processes</i>, vol. 11, Art. no. 100299, 2025, doi: <a href=\"https://doi.org/10.1016/j.jajp.2025.100299\">10.1016/j.jajp.2025.100299</a>.","chicago":"Friedlein, Johannes, Stephan Lüder, Jan Kalich, Hans Christian Schmale, Max Böhnke, Malte Christian Schlichter, Mathias Bobbert, Gerson Meschut, Paul Steinmann, and Julia Mergheim. “Application of Stress-State-Dependent Ductile Damage and Failure Model to Clinch Joining for a Wide Range of Tool and Material Combinations.” <i>Journal of Advanced Joining Processes</i> 11 (2025). <a href=\"https://doi.org/10.1016/j.jajp.2025.100299\">https://doi.org/10.1016/j.jajp.2025.100299</a>.","apa":"Friedlein, J., Lüder, S., Kalich, J., Schmale, H. C., Böhnke, M., Schlichter, M. C., Bobbert, M., Meschut, G., Steinmann, P., &#38; Mergheim, J. (2025). Application of stress-state-dependent ductile damage and failure model to clinch joining for a wide range of tool and material combinations. <i>Journal of Advanced Joining Processes</i>, <i>11</i>, Article 100299. <a href=\"https://doi.org/10.1016/j.jajp.2025.100299\">https://doi.org/10.1016/j.jajp.2025.100299</a>","ama":"Friedlein J, Lüder S, Kalich J, et al. Application of stress-state-dependent ductile damage and failure model to clinch joining for a wide range of tool and material combinations. <i>Journal of Advanced Joining Processes</i>. 2025;11. doi:<a href=\"https://doi.org/10.1016/j.jajp.2025.100299\">10.1016/j.jajp.2025.100299</a>","mla":"Friedlein, Johannes, et al. “Application of Stress-State-Dependent Ductile Damage and Failure Model to Clinch Joining for a Wide Range of Tool and Material Combinations.” <i>Journal of Advanced Joining Processes</i>, vol. 11, 100299, Elsevier BV, 2025, doi:<a href=\"https://doi.org/10.1016/j.jajp.2025.100299\">10.1016/j.jajp.2025.100299</a>.","short":"J. Friedlein, S. Lüder, J. Kalich, H.C. Schmale, M. Böhnke, M.C. Schlichter, M. Bobbert, G. Meschut, P. Steinmann, J. Mergheim, Journal of Advanced Joining Processes 11 (2025).","bibtex":"@article{Friedlein_Lüder_Kalich_Schmale_Böhnke_Schlichter_Bobbert_Meschut_Steinmann_Mergheim_2025, title={Application of stress-state-dependent ductile damage and failure model to clinch joining for a wide range of tool and material combinations}, volume={11}, DOI={<a href=\"https://doi.org/10.1016/j.jajp.2025.100299\">10.1016/j.jajp.2025.100299</a>}, number={100299}, journal={Journal of Advanced Joining Processes}, publisher={Elsevier BV}, author={Friedlein, Johannes and Lüder, Stephan and Kalich, Jan and Schmale, Hans Christian and Böhnke, Max and Schlichter, Malte Christian and Bobbert, Mathias and Meschut, Gerson and Steinmann, Paul and Mergheim, Julia}, year={2025} }"},"intvolume":"        11","publication_status":"published","quality_controlled":"1","publication_identifier":{"issn":["2666-3309"]},"article_number":"100299","language":[{"iso":"eng"}],"project":[{"_id":"131","name":"TRR 285 - A: TRR 285 - Project Area A"},{"name":"TRR 285 – A01: TRR 285 - Subproject A01","_id":"135"},{"name":"TRR 285 – A04: TRR 285 - Subproject A04","_id":"138"},{"_id":"139","name":"TRR 285 – A05: TRR 285 - Subproject A05"},{"_id":"130","name":"TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten"}],"_id":"59584","user_id":"7850","status":"public","type":"journal_article","publication":"Journal of Advanced Joining Processes"},{"publication_identifier":{"issn":["2474-395X"]},"quality_controlled":"1","publication_status":"published","intvolume":"        54","citation":{"apa":"Holtkamp, P. K., Bielak, C. R., Bobbert, M., &#38; Meschut, G. (2025). Simulation of the joining process of graded hardened multi-range capable rivets. <i>Materials Research Proceedings</i>, <i>54</i>. <a href=\"https://doi.org/10.21741/9781644903599-153\">https://doi.org/10.21741/9781644903599-153</a>","short":"P.K. Holtkamp, C.R. Bielak, M. Bobbert, G. Meschut, in: Materials Research Proceedings, Materials Research Forum LLC, 2025.","bibtex":"@inproceedings{Holtkamp_Bielak_Bobbert_Meschut_2025, title={Simulation of the joining process of graded hardened multi-range capable rivets}, volume={54}, DOI={<a href=\"https://doi.org/10.21741/9781644903599-153\">10.21741/9781644903599-153</a>}, booktitle={Materials Research Proceedings}, publisher={Materials Research Forum LLC}, author={Holtkamp, Pia Katharina and Bielak, Christian Roman and Bobbert, Mathias and Meschut, Gerson}, year={2025} }","mla":"Holtkamp, Pia Katharina, et al. “Simulation of the Joining Process of Graded Hardened Multi-Range Capable Rivets.” <i>Materials Research Proceedings</i>, vol. 54, Materials Research Forum LLC, 2025, doi:<a href=\"https://doi.org/10.21741/9781644903599-153\">10.21741/9781644903599-153</a>.","ieee":"P. K. Holtkamp, C. R. Bielak, M. Bobbert, and G. Meschut, “Simulation of the joining process of graded hardened multi-range capable rivets,” in <i>Materials Research Proceedings</i>, 2025, vol. 54, doi: <a href=\"https://doi.org/10.21741/9781644903599-153\">10.21741/9781644903599-153</a>.","chicago":"Holtkamp, Pia Katharina, Christian Roman Bielak, Mathias Bobbert, and Gerson Meschut. “Simulation of the Joining Process of Graded Hardened Multi-Range Capable Rivets.” In <i>Materials Research Proceedings</i>, Vol. 54. Materials Research Forum LLC, 2025. <a href=\"https://doi.org/10.21741/9781644903599-153\">https://doi.org/10.21741/9781644903599-153</a>.","ama":"Holtkamp PK, Bielak CR, Bobbert M, Meschut G. Simulation of the joining process of graded hardened multi-range capable rivets. In: <i>Materials Research Proceedings</i>. Vol 54. Materials Research Forum LLC; 2025. doi:<a href=\"https://doi.org/10.21741/9781644903599-153\">10.21741/9781644903599-153</a>"},"year":"2025","volume":54,"date_created":"2025-06-27T08:23:00Z","author":[{"first_name":"Pia Katharina","full_name":"Holtkamp, Pia Katharina","id":"44935","last_name":"Holtkamp"},{"first_name":"Christian Roman","last_name":"Bielak","full_name":"Bielak, Christian Roman","id":"34782"},{"id":"7850","full_name":"Bobbert, Mathias","last_name":"Bobbert","first_name":"Mathias"},{"first_name":"Gerson","full_name":"Meschut, Gerson","id":"32056","last_name":"Meschut","orcid":"0000-0002-2763-1246"}],"publisher":"Materials Research Forum LLC","date_updated":"2026-02-24T14:12:10Z","doi":"10.21741/9781644903599-153","title":"Simulation of the joining process of graded hardened multi-range capable rivets","publication":"Materials Research Proceedings","type":"conference","status":"public","abstract":[{"lang":"eng","text":"The versatile self-pierce riveting (V-SPR) is a further development of semi-tubular self-pierce riveting. V-SPR enables adaptation to changing boundary conditions, such as a change in the material thickness combination, without varying the rivet die combination due to increased punch actuation and the use of multi-range capable rivets [1]. The inner punch first sets the rivet. The outer punch then forms the rivet head to the respective sheet thickness. For this, the rivet requires a hard shank and a ductile rivet head, which is achieved by an inductive local hardening process [2]. Until now, the joint formation of rivets with graded hardness profile has been challenging to estimate in the FEM simulation due to the inhomogeneous material conditions in the rivet. In this study, a method capable of reproducing the experimentally determined hardness levels of rivets in detail is shown. This FE model enables the realistic modelling of the mechanical properties of the rivet on the basis of the hardness profile in order to predict the correct deformation processes and stresses during the riveting process. First, the detailed experimental hardness mapping of the locally heat-treated rivets is transferred into the FE model. The FEM material model can predict the local strength of the rivet based on hardness by scaling the flow curves. To estimate the predictive capability of the FEM model, the joint formation of rivets with different graded hardness profiles is compared experimentally and simulative. Based on the validated model, the influence of different rivet hardness profiles on the joint formation is analysed numerically. By adapting the material model, a high level of correlation between the experiment's joint formation and the simulation can be achieved."}],"department":[{"_id":"43"},{"_id":"157"}],"user_id":"7850","_id":"60440","project":[{"_id":"130","name":"TRR 285: TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten"},{"name":"TRR 285 - C: TRR 285 - Project Area C","_id":"133"},{"_id":"146","name":"TRR 285 – C02: TRR 285 - Subproject C02"},{"_id":"131","name":"TRR 285 - A: TRR 285 - Project Area A"},{"_id":"135","name":"TRR 285 – A01: TRR 285 - Subproject A01"}],"language":[{"iso":"eng"}]},{"publisher":"Sage Publications","date_created":"2025-02-24T10:25:31Z","title":"Mechanical properties and joinability of the near-eutectic aluminium casting alloy AlSi12","quality_controlled":"1","year":"2025","keyword":["aluminium","casting","microstructure","joinability","self-piercing riveting"],"language":[{"iso":"eng"}],"publication":"The Journal of Materials: Design and Applications, Part L","abstract":[{"text":"One of the most important strategies for reducing CO2 emissions in the mobility sector is lightweight construction. In particular, the car body offers several opportunities for weight reduction. Multi-material designs are increasingly being applied to select the most suitable material for the respective load and ultimately achieve synergy effects. For example, aluminium castings are used at the nodes of a spaceframe body. Subsequently, these are joined with profiles to form the bodyshell. To join different materials mechanical joining techniques, such as semi-tubular self-piercing riveting, are deployed. According to the current state of the art, cracks occur in the aluminium castings during the mechanical joining process as a result of the high degree of deformation. Although the aluminium casting alloys of the AlSi-system exhibit low ductility, these alloys reveal excellent castability. In particular, the ability to cast thin structural parts is enabled by the low liquidus point of the near eutectic aluminium casting alloys.\r\nThis study addresses the mechanical joining properties of the near eutectic aluminium casting alloy AlSi12, depending on different microstructures. These are achieved by annealing processes and modifying agents. Through an adapted heat treatment, the previously lamellar morphology can be transformed into a globular morphology, which leads to increased ductility and prevents the formation of cracks during the self-piercing riveting (SPR). The joinability is investigated using different die geometries, whereas the joint formation is analysed regarding crack initiation. To evaluate the increased ductility, microstructural and mechanical tests are performed and finally, a microstructure-joinability correlation is established.","lang":"eng"}],"date_updated":"2025-02-24T12:25:04Z","author":[{"last_name":"Neuser","full_name":"Neuser, Moritz","id":"32340","first_name":"Moritz"},{"first_name":"Pia Katharina","last_name":"Holtkamp","full_name":"Holtkamp, Pia Katharina","id":"44935"},{"last_name":"Hoyer","id":"48411","full_name":"Hoyer, Kay-Peter","first_name":"Kay-Peter"},{"first_name":"Fabian","last_name":"Kappe","full_name":"Kappe, Fabian","id":"66459"},{"last_name":"Yildiz","full_name":"Yildiz, Safak","first_name":"Safak"},{"last_name":"Bobbert","full_name":"Bobbert, Mathias","id":"7850","first_name":"Mathias"},{"last_name":"Meschut","orcid":"0000-0002-2763-1246","id":"32056","full_name":"Meschut, Gerson","first_name":"Gerson"},{"first_name":"Mirko","last_name":"Schaper","id":"43720","full_name":"Schaper, Mirko"}],"doi":"10.1177/14644207251319922","conference":{"start_date":"2024-07-04","name":"5th International Conference on Materials Design and Applications 2024","location":"Porto, Portugal","end_date":"2024-07-05"},"publication_status":"published","has_accepted_license":"1","citation":{"ama":"Neuser M, Holtkamp PK, Hoyer K-P, et al. Mechanical properties and joinability of the near-eutectic aluminium casting alloy AlSi12. <i>The Journal of Materials: Design and Applications, Part L</i>. Published online 2025. doi:<a href=\"https://doi.org/10.1177/14644207251319922\">10.1177/14644207251319922</a>","chicago":"Neuser, Moritz, Pia Katharina Holtkamp, Kay-Peter Hoyer, Fabian Kappe, Safak Yildiz, Mathias Bobbert, Gerson Meschut, and Mirko Schaper. “Mechanical Properties and Joinability of the Near-Eutectic Aluminium Casting Alloy AlSi12.” <i>The Journal of Materials: Design and Applications, Part L</i>, 2025. <a href=\"https://doi.org/10.1177/14644207251319922\">https://doi.org/10.1177/14644207251319922</a>.","ieee":"M. Neuser <i>et al.</i>, “Mechanical properties and joinability of the near-eutectic aluminium casting alloy AlSi12,” <i>The Journal of Materials: Design and Applications, Part L</i>, 2025, doi: <a href=\"https://doi.org/10.1177/14644207251319922\">10.1177/14644207251319922</a>.","short":"M. Neuser, P.K. Holtkamp, K.-P. Hoyer, F. Kappe, S. Yildiz, M. Bobbert, G. Meschut, M. Schaper, The Journal of Materials: Design and Applications, Part L (2025).","bibtex":"@article{Neuser_Holtkamp_Hoyer_Kappe_Yildiz_Bobbert_Meschut_Schaper_2025, title={Mechanical properties and joinability of the near-eutectic aluminium casting alloy AlSi12}, DOI={<a href=\"https://doi.org/10.1177/14644207251319922\">10.1177/14644207251319922</a>}, journal={The Journal of Materials: Design and Applications, Part L}, publisher={Sage Publications}, author={Neuser, Moritz and Holtkamp, Pia Katharina and Hoyer, Kay-Peter and Kappe, Fabian and Yildiz, Safak and Bobbert, Mathias and Meschut, Gerson and Schaper, Mirko}, year={2025} }","mla":"Neuser, Moritz, et al. “Mechanical Properties and Joinability of the Near-Eutectic Aluminium Casting Alloy AlSi12.” <i>The Journal of Materials: Design and Applications, Part L</i>, Sage Publications, 2025, doi:<a href=\"https://doi.org/10.1177/14644207251319922\">10.1177/14644207251319922</a>.","apa":"Neuser, M., Holtkamp, P. K., Hoyer, K.-P., Kappe, F., Yildiz, S., Bobbert, M., Meschut, G., &#38; Schaper, M. (2025). Mechanical properties and joinability of the near-eutectic aluminium casting alloy AlSi12. <i>The Journal of Materials: Design and Applications, Part L</i>. 5th International Conference on Materials Design and Applications 2024, Porto, Portugal. <a href=\"https://doi.org/10.1177/14644207251319922\">https://doi.org/10.1177/14644207251319922</a>"},"project":[{"_id":"131","name":"TRR 285 - A: TRR 285 - Project Area A"},{"name":"TRR 285 – A02: TRR 285 - Subproject A02","_id":"136"},{"_id":"133","name":"TRR 285 - C: TRR 285 - Project Area C"},{"_id":"146","name":"TRR 285 – C02: TRR 285 - Subproject C02"}],"_id":"58807","user_id":"32340","department":[{"_id":"43"},{"_id":"158"},{"_id":"157"},{"_id":"9"},{"_id":"321"}],"article_type":"original","type":"journal_article","status":"public"},{"volume":52,"author":[{"full_name":"Lüder, Stephan","last_name":"Lüder","first_name":"Stephan"},{"first_name":"Pia Katharina","last_name":"Holtkamp","id":"44935","full_name":"Holtkamp, Pia Katharina"},{"first_name":"Simon","last_name":"Wituschek","full_name":"Wituschek, Simon"},{"last_name":"Bobbert","full_name":"Bobbert, Mathias","id":"7850","first_name":"Mathias"},{"first_name":"Gerson","id":"32056","full_name":"Meschut, Gerson","orcid":"0000-0002-2763-1246","last_name":"Meschut"},{"full_name":"Lechner, Michael","last_name":"Lechner","first_name":"Michael"},{"last_name":"Schmale","full_name":"Schmale, Hans Christian","first_name":"Hans Christian"}],"date_updated":"2025-06-27T08:19:26Z","conference":{"name":"21st International Conference on Sheet Metal","start_date":"2025-04-01","end_date":"2025-04-03","location":"Paderborn"},"doi":"10.21741/9781644903551-13","publication_identifier":{"issn":["2474-395X"]},"publication_status":"published","page":"101 - 108","intvolume":"        52","citation":{"ieee":"S. Lüder <i>et al.</i>, “Analysis of the binding mechanisms depending on versatile process variants of self-piercing riveting,” in <i>Materials Research Proceedings</i>, Paderborn, 2025, vol. 52, pp. 101–108, doi: <a href=\"https://doi.org/10.21741/9781644903551-13\">10.21741/9781644903551-13</a>.","chicago":"Lüder, Stephan, Pia Katharina Holtkamp, Simon Wituschek, Mathias Bobbert, Gerson Meschut, Michael Lechner, and Hans Christian Schmale. “Analysis of the Binding Mechanisms Depending on Versatile Process Variants of Self-Piercing Riveting.” In <i>Materials Research Proceedings</i>, edited by Gerson Meschut, Mathias Bobbert, Joost Duflou, Livan Fratini, Hinnerk Hagenah, Paulo A. F. Martins, Marion Merklein, and Fabrizio Micari, 52:101–8. Sheet Metal 2025. Millersville: Materials Research Forum LLC, 2025. <a href=\"https://doi.org/10.21741/9781644903551-13\">https://doi.org/10.21741/9781644903551-13</a>.","ama":"Lüder S, Holtkamp PK, Wituschek S, et al. Analysis of the binding mechanisms depending on versatile process variants of self-piercing riveting. In: Meschut G, Bobbert M, Duflou J, et al., eds. <i>Materials Research Proceedings</i>. Vol 52. Sheet Metal 2025. Materials Research Forum LLC; 2025:101-108. doi:<a href=\"https://doi.org/10.21741/9781644903551-13\">10.21741/9781644903551-13</a>","apa":"Lüder, S., Holtkamp, P. K., Wituschek, S., Bobbert, M., Meschut, G., Lechner, M., &#38; Schmale, H. C. (2025). Analysis of the binding mechanisms depending on versatile process variants of self-piercing riveting. In G. Meschut, M. Bobbert, J. Duflou, L. Fratini, H. Hagenah, P. A. F. Martins, M. Merklein, &#38; F. Micari (Eds.), <i>Materials Research Proceedings</i> (Vol. 52, pp. 101–108). Materials Research Forum LLC. <a href=\"https://doi.org/10.21741/9781644903551-13\">https://doi.org/10.21741/9781644903551-13</a>","bibtex":"@inproceedings{Lüder_Holtkamp_Wituschek_Bobbert_Meschut_Lechner_Schmale_2025, place={Millersville}, series={Sheet Metal 2025}, title={Analysis of the binding mechanisms depending on versatile process variants of self-piercing riveting}, volume={52}, DOI={<a href=\"https://doi.org/10.21741/9781644903551-13\">10.21741/9781644903551-13</a>}, booktitle={Materials Research Proceedings}, publisher={Materials Research Forum LLC}, author={Lüder, Stephan and Holtkamp, Pia Katharina and Wituschek, Simon and Bobbert, Mathias and Meschut, Gerson and Lechner, Michael and Schmale, Hans Christian}, editor={Meschut, Gerson and Bobbert, Mathias and Duflou, Joost and Fratini, Livan and Hagenah, Hinnerk and Martins, Paulo A. F. and Merklein, Marion and Micari, Fabrizio}, year={2025}, pages={101–108}, collection={Sheet Metal 2025} }","short":"S. Lüder, P.K. Holtkamp, S. Wituschek, M. Bobbert, G. Meschut, M. Lechner, H.C. Schmale, in: G. Meschut, M. Bobbert, J. Duflou, L. Fratini, H. Hagenah, P.A.F. Martins, M. Merklein, F. Micari (Eds.), Materials Research Proceedings, Materials Research Forum LLC, Millersville, 2025, pp. 101–108.","mla":"Lüder, Stephan, et al. “Analysis of the Binding Mechanisms Depending on Versatile Process Variants of Self-Piercing Riveting.” <i>Materials Research Proceedings</i>, edited by Gerson Meschut et al., vol. 52, Materials Research Forum LLC, 2025, pp. 101–08, doi:<a href=\"https://doi.org/10.21741/9781644903551-13\">10.21741/9781644903551-13</a>."},"place":"Millersville","department":[{"_id":"630"},{"_id":"43"},{"_id":"157"}],"user_id":"44935","series_title":"Sheet Metal 2025","_id":"60290","project":[{"name":"TRR 285 - A: TRR 285 - Project Area A","_id":"131"},{"_id":"138","name":"TRR 285 – A04: TRR 285 - Subproject A04"},{"name":"TRR 285 - C: TRR 285 - Project Area C","_id":"133"},{"name":"TRR 285 – C02: TRR 285 - Subproject C02","_id":"146"}],"extern":"1","type":"conference","status":"public","editor":[{"full_name":"Meschut, Gerson","last_name":"Meschut","first_name":"Gerson"},{"full_name":"Bobbert, Mathias","last_name":"Bobbert","first_name":"Mathias"},{"full_name":"Duflou, Joost","last_name":"Duflou","first_name":"Joost"},{"full_name":"Fratini, Livan","last_name":"Fratini","first_name":"Livan"},{"last_name":"Hagenah","full_name":"Hagenah, Hinnerk","first_name":"Hinnerk"},{"last_name":"Martins","full_name":"Martins, Paulo A. F.","first_name":"Paulo A. F."},{"last_name":"Merklein","full_name":"Merklein, Marion","first_name":"Marion"},{"first_name":"Fabrizio","full_name":"Micari, Fabrizio","last_name":"Micari"}],"date_created":"2025-06-20T10:13:22Z","publisher":"Materials Research Forum LLC","title":"Analysis of the binding mechanisms depending on versatile process variants of self-piercing riveting","quality_controlled":"1","year":"2025","language":[{"iso":"eng"}],"keyword":["Joining","Self-Piercing Riveting","Sheet Metal"],"publication":"Materials Research Proceedings","abstract":[{"lang":"eng","text":"The constantly increasing demand for climate protection and resource conservation requires innovative and versatile joining processes that improve adaptability to the joining task and robustness to enable flexible manufacturing on a production line. Therefore, the versatile SPR (V-SPR) and tumbling SPR (T-SPR) were developed. Using the example of a mixed material combination HCT590X+Z (t0 = 1.0 mm) / EN AW-6014 T4 (t0 = 2.0 mm), these processes were examined and compared with regard to the binding mechanisms form closure and force closure using micrographs, non-destructive resistance measurements and destructive torsion tests. For this purpose, a new sample geometry was defined, and the methods were adapted to the SPR process variants.</jats:p>"}]},{"type":"journal_article","publication":"Friction","status":"public","user_id":"45779","department":[{"_id":"157"}],"project":[{"_id":"131","name":"TRR 285 - A: TRR 285 - Project Area A"},{"_id":"135","name":"TRR 285 – A01: TRR 285 - Subproject A01"}],"_id":"57742","language":[{"iso":"eng"}],"article_type":"original","publication_status":"published","quality_controlled":"1","publication_identifier":{"issn":["2223-7690","2223-7704"]},"citation":{"ieee":"M. Böhnke, C. R. Bielak, R. Beck, M. Bobbert, and G. Meschut, “Development of a friction model for the numerical simulation of clinching processes,” <i>Friction</i>, 2024, doi: <a href=\"https://doi.org/10.26599/frict.2025.9441052\">10.26599/frict.2025.9441052</a>.","chicago":"Böhnke, Max, Christian Roman Bielak, Robert Beck, Mathias Bobbert, and Gerson Meschut. “Development of a Friction Model for the Numerical Simulation of Clinching Processes.” <i>Friction</i>, 2024. <a href=\"https://doi.org/10.26599/frict.2025.9441052\">https://doi.org/10.26599/frict.2025.9441052</a>.","ama":"Böhnke M, Bielak CR, Beck R, Bobbert M, Meschut G. Development of a friction model for the numerical simulation of clinching processes. <i>Friction</i>. Published online 2024. doi:<a href=\"https://doi.org/10.26599/frict.2025.9441052\">10.26599/frict.2025.9441052</a>","apa":"Böhnke, M., Bielak, C. R., Beck, R., Bobbert, M., &#38; Meschut, G. (2024). Development of a friction model for the numerical simulation of clinching processes. <i>Friction</i>. <a href=\"https://doi.org/10.26599/frict.2025.9441052\">https://doi.org/10.26599/frict.2025.9441052</a>","mla":"Böhnke, Max, et al. “Development of a Friction Model for the Numerical Simulation of Clinching Processes.” <i>Friction</i>, Tsinghua University Press, 2024, doi:<a href=\"https://doi.org/10.26599/frict.2025.9441052\">10.26599/frict.2025.9441052</a>.","short":"M. Böhnke, C.R. Bielak, R. Beck, M. Bobbert, G. Meschut, Friction (2024).","bibtex":"@article{Böhnke_Bielak_Beck_Bobbert_Meschut_2024, title={Development of a friction model for the numerical simulation of clinching processes}, DOI={<a href=\"https://doi.org/10.26599/frict.2025.9441052\">10.26599/frict.2025.9441052</a>}, journal={Friction}, publisher={Tsinghua University Press}, author={Böhnke, Max and Bielak, Christian Roman and Beck, Robert and Bobbert, Mathias and Meschut, Gerson}, year={2024} }"},"year":"2024","date_created":"2024-12-11T14:45:57Z","author":[{"id":"45779","full_name":"Böhnke, Max","last_name":"Böhnke","first_name":"Max"},{"first_name":"Christian Roman","last_name":"Bielak","full_name":"Bielak, Christian Roman","id":"34782"},{"first_name":"Robert","orcid":"0000-0001-9056-4528","last_name":"Beck","full_name":"Beck, Robert","id":"38279"},{"first_name":"Mathias","id":"7850","full_name":"Bobbert, Mathias","last_name":"Bobbert"},{"first_name":"Gerson","id":"32056","full_name":"Meschut, Gerson","last_name":"Meschut","orcid":"0000-0002-2763-1246"}],"date_updated":"2025-01-28T08:54:37Z","publisher":"Tsinghua University Press","doi":"10.26599/frict.2025.9441052","title":"Development of a friction model for the numerical simulation of clinching processes"},{"publication":"Journal of Manufacturing and Materials Processing","abstract":[{"text":"<jats:p>Similar to bulk metal forming, clinch joining is characterised by large plastic deformations and a variety of different 3D stress states, including severe compression. However, inherent to plastic forming is the nucleation and growth of defects, whose detrimental effects on the material behaviour can be described by continuum damage models and eventually lead to material failure. As the damage evolution strongly depends on the stress state, a stress-state-dependent model is utilised to correctly track the accumulation. To formulate and parameterise this model, besides classical experiments, so-called modified punch tests are also integrated herein to enhance the calibration of the failure model by capturing a larger range of stress states and metal-forming-specific loading conditions. Moreover, when highly ductile materials are considered, such as the dual-phase steel HCT590X and the aluminium alloy EN AW-6014 T4 investigated here, strong necking and localisation might occur prior to fracture. This can alter the stress state and affect the actual strain at failure. This influence is captured by coupling plasticity and damage to incorporate the damage-induced softening effect. Its relative importance is shown by conducting inverse parameter identifications to determine damage and failure parameters for both mentioned ductile metals based on up to 12 different experiments.</jats:p>","lang":"eng"}],"language":[{"iso":"eng"}],"quality_controlled":"1","issue":"4","year":"2024","publisher":"MDPI AG","date_created":"2025-04-15T11:07:52Z","title":"Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining","type":"journal_article","status":"public","_id":"59585","project":[{"_id":"131","name":"TRR 285 - A: TRR 285 - Project Area A"},{"name":"TRR 285 – A01: TRR 285 - Subproject A01","_id":"135"}],"department":[{"_id":"157"}],"user_id":"61977","article_number":"157","publication_identifier":{"issn":["2504-4494"]},"publication_status":"published","intvolume":"         8","citation":{"short":"J. Friedlein, M. Böhnke, M.C. Schlichter, M. Bobbert, G. Meschut, J. Mergheim, P. Steinmann, Journal of Manufacturing and Materials Processing 8 (2024).","bibtex":"@article{Friedlein_Böhnke_Schlichter_Bobbert_Meschut_Mergheim_Steinmann_2024, title={Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining}, volume={8}, DOI={<a href=\"https://doi.org/10.3390/jmmp8040157\">10.3390/jmmp8040157</a>}, number={4157}, journal={Journal of Manufacturing and Materials Processing}, publisher={MDPI AG}, author={Friedlein, Johannes and Böhnke, Max and Schlichter, Malte Christian and Bobbert, Mathias and Meschut, Gerson and Mergheim, Julia and Steinmann, Paul}, year={2024} }","mla":"Friedlein, Johannes, et al. “Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining.” <i>Journal of Manufacturing and Materials Processing</i>, vol. 8, no. 4, 157, MDPI AG, 2024, doi:<a href=\"https://doi.org/10.3390/jmmp8040157\">10.3390/jmmp8040157</a>.","apa":"Friedlein, J., Böhnke, M., Schlichter, M. C., Bobbert, M., Meschut, G., Mergheim, J., &#38; Steinmann, P. (2024). Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining. <i>Journal of Manufacturing and Materials Processing</i>, <i>8</i>(4), Article 157. <a href=\"https://doi.org/10.3390/jmmp8040157\">https://doi.org/10.3390/jmmp8040157</a>","ieee":"J. Friedlein <i>et al.</i>, “Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining,” <i>Journal of Manufacturing and Materials Processing</i>, vol. 8, no. 4, Art. no. 157, 2024, doi: <a href=\"https://doi.org/10.3390/jmmp8040157\">10.3390/jmmp8040157</a>.","chicago":"Friedlein, Johannes, Max Böhnke, Malte Christian Schlichter, Mathias Bobbert, Gerson Meschut, Julia Mergheim, and Paul Steinmann. “Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining.” <i>Journal of Manufacturing and Materials Processing</i> 8, no. 4 (2024). <a href=\"https://doi.org/10.3390/jmmp8040157\">https://doi.org/10.3390/jmmp8040157</a>.","ama":"Friedlein J, Böhnke M, Schlichter MC, et al. Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining. <i>Journal of Manufacturing and Materials Processing</i>. 2024;8(4). doi:<a href=\"https://doi.org/10.3390/jmmp8040157\">10.3390/jmmp8040157</a>"},"date_updated":"2025-05-20T13:14:43Z","volume":8,"author":[{"first_name":"Johannes","full_name":"Friedlein, Johannes","last_name":"Friedlein"},{"first_name":"Max","full_name":"Böhnke, Max","id":"45779","last_name":"Böhnke"},{"first_name":"Malte Christian","id":"61977","full_name":"Schlichter, Malte Christian","last_name":"Schlichter"},{"full_name":"Bobbert, Mathias","id":"7850","last_name":"Bobbert","first_name":"Mathias"},{"first_name":"Gerson","last_name":"Meschut","orcid":"0000-0002-2763-1246","full_name":"Meschut, Gerson","id":"32056"},{"last_name":"Mergheim","full_name":"Mergheim, Julia","first_name":"Julia"},{"last_name":"Steinmann","full_name":"Steinmann, Paul","first_name":"Paul"}],"doi":"10.3390/jmmp8040157"},{"publication":"Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering","type":"journal_article","abstract":[{"text":"Climate change has led to a large number of countries deciding to reduce carbon dioxide (CO<jats:sub>2</jats:sub>) emissions significantly. As the mobility sector is a major contributor to CO<jats:sub>2</jats:sub>, various strategies are being pursued to achieve the climate targets set. An increasingly applied lightweight design method is the use of multi-material constructions. To join these structures, mechanical joining technologies such as self-pierce riveting are being used. As a result of the currently rigid tool systems, which cannot react to changing boundary conditions, a large number of rivet–die combinations is required to join the rising number of materials as well as material thickness combinations. Thus, new, versatile joining technologies are needed that can react to the described changes. The versatile self-piercing riveting (V-SPR) process is one possible approach. In this process, different material thicknesses can be joined by using a multi-range capable rivet which is set by a joining system with extended actuator technology. In this study, the V-SPR joining process is analysed numerically according to the influence of the geometrical rivet parameters on the joints characteristics as well as the resulting material flow. The investigations showed that the shank geometry has a decisive influence on the expansion of the rivet. Furthermore, the rivet length could be proven to be an influencing factor. By changing the head radii and the protrusion height, the forming behaviour of the rivet head onto the punch-sided joining part could be improved and thus the formation of air pockets was prevented. Based on the numerical investigations, a novel rivet geometry was developed and produced by machining. Subsequently, experimentally produced joints were analysed according to their joint formation and load-bearing capacity.","lang":"eng"}],"status":"public","_id":"61413","project":[{"name":"TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten","_id":"130"},{"name":"TRR 285 - Project Area C","_id":"133"},{"name":"TRR 285 - Subproject C02","_id":"146"}],"department":[{"_id":"43"},{"_id":"157"}],"user_id":"44935","article_number":"09544089241263141","language":[{"iso":"eng"}],"publication_identifier":{"issn":["0954-4089","2041-3009"]},"quality_controlled":"1","publication_status":"published","year":"2024","citation":{"mla":"Kappe, Fabian, et al. “Investigation of the Influence of the Rivet Geometry on Joint Formation for a Versatile Self-Piercing Riveting Process.” <i>Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering</i>, 09544089241263141, SAGE Publications, 2024, doi:<a href=\"https://doi.org/10.1177/09544089241263141\">10.1177/09544089241263141</a>.","short":"F. Kappe, M. Bobbert, G. Meschut, Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering (2024).","bibtex":"@article{Kappe_Bobbert_Meschut_2024, title={Investigation of the influence of the rivet geometry on joint formation for a versatile self-piercing riveting process}, DOI={<a href=\"https://doi.org/10.1177/09544089241263141\">10.1177/09544089241263141</a>}, number={09544089241263141}, journal={Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering}, publisher={SAGE Publications}, author={Kappe, Fabian and Bobbert, Mathias and Meschut, Gerson}, year={2024} }","apa":"Kappe, F., Bobbert, M., &#38; Meschut, G. (2024). Investigation of the influence of the rivet geometry on joint formation for a versatile self-piercing riveting process. <i>Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering</i>, Article 09544089241263141. <a href=\"https://doi.org/10.1177/09544089241263141\">https://doi.org/10.1177/09544089241263141</a>","ama":"Kappe F, Bobbert M, Meschut G. Investigation of the influence of the rivet geometry on joint formation for a versatile self-piercing riveting process. <i>Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering</i>. Published online 2024. doi:<a href=\"https://doi.org/10.1177/09544089241263141\">10.1177/09544089241263141</a>","ieee":"F. Kappe, M. Bobbert, and G. Meschut, “Investigation of the influence of the rivet geometry on joint formation for a versatile self-piercing riveting process,” <i>Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering</i>, Art. no. 09544089241263141, 2024, doi: <a href=\"https://doi.org/10.1177/09544089241263141\">10.1177/09544089241263141</a>.","chicago":"Kappe, Fabian, Mathias Bobbert, and Gerson Meschut. “Investigation of the Influence of the Rivet Geometry on Joint Formation for a Versatile Self-Piercing Riveting Process.” <i>Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering</i>, 2024. <a href=\"https://doi.org/10.1177/09544089241263141\">https://doi.org/10.1177/09544089241263141</a>."},"date_updated":"2025-09-23T13:15:51Z","publisher":"SAGE Publications","date_created":"2025-09-23T13:06:35Z","author":[{"id":"66459","full_name":"Kappe, Fabian","last_name":"Kappe","first_name":"Fabian"},{"last_name":"Bobbert","id":"7850","full_name":"Bobbert, Mathias","first_name":"Mathias"},{"first_name":"Gerson","orcid":"0000-0002-2763-1246","last_name":"Meschut","id":"32056","full_name":"Meschut, Gerson"}],"title":"Investigation of the influence of the rivet geometry on joint formation for a versatile self-piercing riveting process","doi":"10.1177/09544089241263141"},{"article_number":"012009","language":[{"iso":"eng"}],"_id":"61416","project":[{"name":"TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten","_id":"130"},{"_id":"133","name":"TRR 285 - Project Area C"},{"name":"TRR 285 - Subproject C02","_id":"146"}],"department":[{"_id":"43"}],"user_id":"44935","abstract":[{"lang":"eng","text":"Abstract\r\n               An efficient lightweight construction method is the combination of different materials in order to adapt the structure to the applied load. To join these multi-material structures mechanical joining technologies are applied. However, the rigid tooling systems cannot be adjusted to changing boundary conditions which is why new, versatile joining technologies are required. In the versatile self-piercing riveting (V-SPR) process presented in [1] different material combination are joined by using a multi-range capable rivet. The rivet head is formed onto the respective thickness of the joint by an outer punch. In order to punch thru the upper sheet a great rivet hardness is required whereas a lower hardness is required for the subsequent forming of the rivet head. To achieve a combination of these requirements, this study investigates a local heat treatment of the rivet. The aim is to determine the feasibility of such a heat treatment as well as to investigate the influence on the joint formation."}],"status":"public","publication":"IOP Conference Series: Materials Science and Engineering","type":"journal_article","title":"Influence of local heat treatment of rivets on the joint formation of a versatile joining process","doi":"10.1088/1757-899x/1307/1/012009","publisher":"IOP Publishing","date_updated":"2025-09-23T13:34:12Z","volume":1307,"date_created":"2025-09-23T13:31:11Z","author":[{"first_name":"Fabian","full_name":"Kappe, Fabian","id":"66459","last_name":"Kappe"},{"first_name":"Mathias","full_name":"Bobbert, Mathias","id":"7850","last_name":"Bobbert"},{"first_name":"Gerson","id":"32056","full_name":"Meschut, Gerson","orcid":"0000-0002-2763-1246","last_name":"Meschut"}],"year":"2024","intvolume":"      1307","citation":{"short":"F. Kappe, M. Bobbert, G. Meschut, IOP Conference Series: Materials Science and Engineering 1307 (2024).","bibtex":"@article{Kappe_Bobbert_Meschut_2024, title={Influence of local heat treatment of rivets on the joint formation of a versatile joining process}, volume={1307}, DOI={<a href=\"https://doi.org/10.1088/1757-899x/1307/1/012009\">10.1088/1757-899x/1307/1/012009</a>}, number={1012009}, journal={IOP Conference Series: Materials Science and Engineering}, publisher={IOP Publishing}, author={Kappe, Fabian and Bobbert, Mathias and Meschut, Gerson}, year={2024} }","mla":"Kappe, Fabian, et al. “Influence of Local Heat Treatment of Rivets on the Joint Formation of a Versatile Joining Process.” <i>IOP Conference Series: Materials Science and Engineering</i>, vol. 1307, no. 1, 012009, IOP Publishing, 2024, doi:<a href=\"https://doi.org/10.1088/1757-899x/1307/1/012009\">10.1088/1757-899x/1307/1/012009</a>.","apa":"Kappe, F., Bobbert, M., &#38; Meschut, G. (2024). Influence of local heat treatment of rivets on the joint formation of a versatile joining process. <i>IOP Conference Series: Materials Science and Engineering</i>, <i>1307</i>(1), Article 012009. <a href=\"https://doi.org/10.1088/1757-899x/1307/1/012009\">https://doi.org/10.1088/1757-899x/1307/1/012009</a>","chicago":"Kappe, Fabian, Mathias Bobbert, and Gerson Meschut. “Influence of Local Heat Treatment of Rivets on the Joint Formation of a Versatile Joining Process.” <i>IOP Conference Series: Materials Science and Engineering</i> 1307, no. 1 (2024). <a href=\"https://doi.org/10.1088/1757-899x/1307/1/012009\">https://doi.org/10.1088/1757-899x/1307/1/012009</a>.","ieee":"F. Kappe, M. Bobbert, and G. Meschut, “Influence of local heat treatment of rivets on the joint formation of a versatile joining process,” <i>IOP Conference Series: Materials Science and Engineering</i>, vol. 1307, no. 1, Art. no. 012009, 2024, doi: <a href=\"https://doi.org/10.1088/1757-899x/1307/1/012009\">10.1088/1757-899x/1307/1/012009</a>.","ama":"Kappe F, Bobbert M, Meschut G. Influence of local heat treatment of rivets on the joint formation of a versatile joining process. <i>IOP Conference Series: Materials Science and Engineering</i>. 2024;1307(1). doi:<a href=\"https://doi.org/10.1088/1757-899x/1307/1/012009\">10.1088/1757-899x/1307/1/012009</a>"},"quality_controlled":"1","publication_identifier":{"issn":["1757-8981","1757-899X"]},"publication_status":"published","issue":"1"},{"publication_status":"published","quality_controlled":"1","publication_identifier":{"issn":["2474-395X"]},"year":"2023","citation":{"chicago":"Bielak, Christian Roman, Max Böhnke, Johannes Friedlein, Mathias Bobbert, Julia Mergheim, Paul Steinmann, and Gerson Meschut. “Numerical Analysis of Failure Modeling in Clinching Process Chain Simulation.” In <i>Materials Research Proceedings</i>. Materials Research Forum LLC, 2023. <a href=\"https://doi.org/10.21741/9781644902417-33\">https://doi.org/10.21741/9781644902417-33</a>.","ieee":"C. R. Bielak <i>et al.</i>, “Numerical analysis of failure modeling in clinching process chain simulation,” presented at the SHEMET 2023, 2023, doi: <a href=\"https://doi.org/10.21741/9781644902417-33\">10.21741/9781644902417-33</a>.","ama":"Bielak CR, Böhnke M, Friedlein J, et al. Numerical analysis of failure modeling in clinching process chain simulation. In: <i>Materials Research Proceedings</i>. Materials Research Forum LLC; 2023. doi:<a href=\"https://doi.org/10.21741/9781644902417-33\">10.21741/9781644902417-33</a>","mla":"Bielak, Christian Roman, et al. “Numerical Analysis of Failure Modeling in Clinching Process Chain Simulation.” <i>Materials Research Proceedings</i>, Materials Research Forum LLC, 2023, doi:<a href=\"https://doi.org/10.21741/9781644902417-33\">10.21741/9781644902417-33</a>.","bibtex":"@inproceedings{Bielak_Böhnke_Friedlein_Bobbert_Mergheim_Steinmann_Meschut_2023, title={Numerical analysis of failure modeling in clinching process chain simulation}, DOI={<a href=\"https://doi.org/10.21741/9781644902417-33\">10.21741/9781644902417-33</a>}, booktitle={Materials Research Proceedings}, publisher={Materials Research Forum LLC}, author={Bielak, Christian Roman and Böhnke, Max and Friedlein, Johannes and Bobbert, Mathias and Mergheim, Julia and Steinmann, Paul and Meschut, Gerson}, year={2023} }","short":"C.R. Bielak, M. Böhnke, J. Friedlein, M. Bobbert, J. Mergheim, P. Steinmann, G. Meschut, in: Materials Research Proceedings, Materials Research Forum LLC, 2023.","apa":"Bielak, C. R., Böhnke, M., Friedlein, J., Bobbert, M., Mergheim, J., Steinmann, P., &#38; Meschut, G. (2023). Numerical analysis of failure modeling in clinching process chain simulation. <i>Materials Research Proceedings</i>. SHEMET 2023. <a href=\"https://doi.org/10.21741/9781644902417-33\">https://doi.org/10.21741/9781644902417-33</a>"},"date_updated":"2024-03-11T08:14:08Z","publisher":"Materials Research Forum LLC","date_created":"2023-03-23T08:13:30Z","author":[{"first_name":"Christian Roman","full_name":"Bielak, Christian Roman","id":"34782","last_name":"Bielak"},{"first_name":"Max","last_name":"Böhnke","id":"45779","full_name":"Böhnke, Max"},{"full_name":"Friedlein, Johannes","last_name":"Friedlein","first_name":"Johannes"},{"id":"7850","full_name":"Bobbert, Mathias","last_name":"Bobbert","first_name":"Mathias"},{"last_name":"Mergheim","full_name":"Mergheim, Julia","first_name":"Julia"},{"full_name":"Steinmann, Paul","last_name":"Steinmann","first_name":"Paul"},{"first_name":"Gerson","last_name":"Meschut","orcid":"0000-0002-2763-1246","full_name":"Meschut, Gerson","id":"32056"}],"title":"Numerical analysis of failure modeling in clinching process chain simulation","doi":"10.21741/9781644902417-33","conference":{"name":"SHEMET 2023"},"type":"conference","publication":"Materials Research Proceedings","abstract":[{"text":"<jats:p>Abstract. The application of the mechanical joining process clinching allows the assembly of different sheet metal materials with a wide range of material thickness configurations, which is of interest for lightweight multi-material structures. In order to be able to predict the clinched joint properties as a function of the individual manufacturing steps, current studies focus on numerical modeling of the entire clinching process chain. It is essential to be able to take into account the influence of the joining process-induced damage on the load-bearing capacity of the joint during the loading phase. This study presents a numerical damage accumulation in the clinching process based on an implemented Hosford-Coulomb failure model using a 3D clinching process model applied on the aluminum alloy EN AW-6014 in temper T4. A correspondence of the experimentally determined failure location with the element of the highest numerically determined damage accumulation is shown. Moreover, the experimentally determined failure behavior is predicted to be in agreement in the numerical loading simulation with transferred pre-damage from the process simulation. </jats:p>","lang":"eng"}],"status":"public","project":[{"name":"TRR 285 - A: TRR 285 - Project Area A","_id":"131"},{"_id":"135","name":"TRR 285 – A01: TRR 285 - Subproject A01"},{"_id":"139","name":"TRR 285 – A05: TRR 285 - Subproject A05"}],"_id":"43090","user_id":"45779","department":[{"_id":"157"}],"language":[{"iso":"eng"}]},{"author":[{"first_name":"Max","full_name":"Böhnke, Max","id":"45779","last_name":"Böhnke"},{"last_name":"Bielak","full_name":"Bielak, Christian Roman","id":"34782","first_name":"Christian Roman"},{"first_name":"Johannes","full_name":"Friedlein, Johannes","last_name":"Friedlein"},{"first_name":"Mathias","full_name":"Bobbert, Mathias","id":"7850","last_name":"Bobbert"},{"first_name":"Julia","last_name":"Mergheim","full_name":"Mergheim, Julia"},{"full_name":"Steinmann, Paul","last_name":"Steinmann","first_name":"Paul"},{"first_name":"Gerson","last_name":"Meschut","orcid":"0000-0002-2763-1246","full_name":"Meschut, Gerson","id":"32056"}],"date_created":"2023-04-13T07:42:53Z","publisher":"Materials Research Forum LLC","date_updated":"2024-03-11T08:14:53Z","doi":"10.21741/9781644902417-34","title":"A calibration method for failure modeling in clinching process simulations","quality_controlled":"1","publication_identifier":{"issn":["2474-395X"]},"publication_status":"published","citation":{"chicago":"Böhnke, Max, Christian Roman Bielak, Johannes Friedlein, Mathias Bobbert, Julia Mergheim, Paul Steinmann, and Gerson Meschut. “A Calibration Method for Failure Modeling in Clinching Process Simulations.” In <i>Materials Research Proceedings</i>. Materials Research Forum LLC, 2023. <a href=\"https://doi.org/10.21741/9781644902417-34\">https://doi.org/10.21741/9781644902417-34</a>.","ieee":"M. Böhnke <i>et al.</i>, “A calibration method for failure modeling in clinching process simulations,” 2023, doi: <a href=\"https://doi.org/10.21741/9781644902417-34\">10.21741/9781644902417-34</a>.","ama":"Böhnke M, Bielak CR, Friedlein J, et al. A calibration method for failure modeling in clinching process simulations. In: <i>Materials Research Proceedings</i>. Materials Research Forum LLC; 2023. doi:<a href=\"https://doi.org/10.21741/9781644902417-34\">10.21741/9781644902417-34</a>","mla":"Böhnke, Max, et al. “A Calibration Method for Failure Modeling in Clinching Process Simulations.” <i>Materials Research Proceedings</i>, Materials Research Forum LLC, 2023, doi:<a href=\"https://doi.org/10.21741/9781644902417-34\">10.21741/9781644902417-34</a>.","bibtex":"@inproceedings{Böhnke_Bielak_Friedlein_Bobbert_Mergheim_Steinmann_Meschut_2023, title={A calibration method for failure modeling in clinching process simulations}, DOI={<a href=\"https://doi.org/10.21741/9781644902417-34\">10.21741/9781644902417-34</a>}, booktitle={Materials Research Proceedings}, publisher={Materials Research Forum LLC}, author={Böhnke, Max and Bielak, Christian Roman and Friedlein, Johannes and Bobbert, Mathias and Mergheim, Julia and Steinmann, Paul and Meschut, Gerson}, year={2023} }","short":"M. Böhnke, C.R. Bielak, J. Friedlein, M. Bobbert, J. Mergheim, P. Steinmann, G. Meschut, in: Materials Research Proceedings, Materials Research Forum LLC, 2023.","apa":"Böhnke, M., Bielak, C. R., Friedlein, J., Bobbert, M., Mergheim, J., Steinmann, P., &#38; Meschut, G. (2023). A calibration method for failure modeling in clinching process simulations. <i>Materials Research Proceedings</i>. <a href=\"https://doi.org/10.21741/9781644902417-34\">https://doi.org/10.21741/9781644902417-34</a>"},"year":"2023","department":[{"_id":"157"}],"user_id":"45779","_id":"43462","project":[{"name":"TRR 285: TRR 285","_id":"130","grant_number":"418701707"},{"_id":"131","name":"TRR 285 - A: TRR 285 - Project Area A"},{"_id":"135","name":"TRR 285 – A01: TRR 285 - Subproject A01"},{"_id":"139","name":"TRR 285 – A05: TRR 285 - Subproject A05"}],"language":[{"iso":"eng"}],"publication":"Materials Research Proceedings","type":"conference","status":"public","abstract":[{"lang":"eng","text":"<jats:p>Abstract. In the numerical simulation of mechanical joining technologies such as clinching, the material modeling of the joining parts is of major importance. This includes modeling the damage and failure behavior of the materials in accordance with varying occurring stress states. This paper presents a calibration method of three different fracture models. The calibration of the models is done by use of experimental data from a modified punch test, tensile test and bulge test in order to map the occurring stress states from clinching processes and to precisely model the resulting failure behavior. Experimental investigations were carried out for an aluminum alloy  EN AW-6014 in temper T4 and compared with the simulative results generated in LS-DYNA. The comparison of force-displacement curves and failure initiation shows that the Hosford–Coulomb model predicts the failure behavior for the material used and the tests applied with the best accuracy. </jats:p>"}]}]