[{"date_created":"2026-02-26T11:21:24Z","keyword":["Mechanical joining","Aluminium","Self-piercing riveting","Casting","Microstructure","Joinability AlSi-alloys"],"type":"journal_article","department":[{"_id":"43"},{"_id":"158"},{"_id":"157"},{"_id":"321"}],"publication":"Journal of Manufacturing Processes","abstract":[{"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.","lang":"eng"}],"language":[{"iso":"eng"}],"doi":"https://doi.org/10.1016/j.jmapro.2026.02.040","year":"2026","title":"Solidification-joinability correlation of hypoeutectic aluminium casting alloys for self-piercing riveting (SPR)","author":[{"id":"32340","full_name":"Neuser, Moritz","first_name":"Moritz","last_name":"Neuser"},{"id":"44935","full_name":"Kaimann, Pia Katharina","last_name":"Kaimann","first_name":"Pia Katharina"},{"full_name":"Stratmann, Ina","last_name":"Stratmann","first_name":"Ina"},{"full_name":"Bobbert, Mathias","first_name":"Mathias","last_name":"Bobbert","id":"7850"},{"full_name":"Klöckner, Johann Moritz Benedikt","last_name":"Klöckner","first_name":"Johann Moritz Benedikt"},{"full_name":"Mann, Moritz","last_name":"Mann","first_name":"Moritz"},{"id":"48411","full_name":"Hoyer, Kay-Peter","first_name":"Kay-Peter","last_name":"Hoyer"},{"id":"32056","full_name":"Meschut, Gerson","first_name":"Gerson","last_name":"Meschut","orcid":"0000-0002-2763-1246"},{"full_name":"Schaper, Mirko","first_name":"Mirko","last_name":"Schaper","id":"43720"}],"date_updated":"2026-02-26T11:22:03Z","publication_status":"published","intvolume":" 164","article_type":"original","citation":{"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).","ama":"Neuser M, Kaimann PK, Stratmann I, et al. Solidification-joinability correlation of hypoeutectic aluminium casting alloys for self-piercing riveting (SPR). Journal of Manufacturing Processes. 2026;164. doi:https://doi.org/10.1016/j.jmapro.2026.02.040","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).” Journal of Manufacturing Processes 164 (2026). https://doi.org/10.1016/j.jmapro.2026.02.040.","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={https://doi.org/10.1016/j.jmapro.2026.02.040}, 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} }","apa":"Neuser, M., Kaimann, P. K., Stratmann, I., Bobbert, M., Klöckner, J. M. B., Mann, M., Hoyer, K.-P., Meschut, G., & Schaper, M. (2026). Solidification-joinability correlation of hypoeutectic aluminium casting alloys for self-piercing riveting (SPR). Journal of Manufacturing Processes, 164. https://doi.org/10.1016/j.jmapro.2026.02.040","mla":"Neuser, Moritz, et al. “Solidification-Joinability Correlation of Hypoeutectic Aluminium Casting Alloys for Self-Piercing Riveting (SPR).” Journal of Manufacturing Processes, vol. 164, Elsevier, 2026, doi:https://doi.org/10.1016/j.jmapro.2026.02.040.","ieee":"M. Neuser et al., “Solidification-joinability correlation of hypoeutectic aluminium casting alloys for self-piercing riveting (SPR),” Journal of Manufacturing Processes, vol. 164, 2026, doi: https://doi.org/10.1016/j.jmapro.2026.02.040."},"quality_controlled":"1","project":[{"_id":"131","name":"TRR 285 - Project Area A"},{"name":"TRR 285 - Project Area C","_id":"133"},{"name":"TRR 285 - Subproject A02","_id":"136"},{"name":"TRR 285 - Subproject C02","_id":"146"},{"name":"TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten","_id":"130"}],"funded_apc":"1","_id":"64678","publisher":"Elsevier","user_id":"32340","volume":164,"status":"public"},{"date_created":"2026-03-16T12:30:39Z","department":[{"_id":"9"}],"type":"journal_article","keyword":["Self-pierce riveting","FE modelling","Plastic pre-deformation","Meta modelling"],"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"}],"language":[{"iso":"eng"}],"article_number":"100391","doi":"10.1016/j.jajp.2026.100391","author":[{"id":"76631","full_name":"Ludwig, Jean-Patrick","last_name":"Ludwig","first_name":"Jean-Patrick"},{"first_name":"Emil","last_name":"Tolke","full_name":"Tolke, Emil"},{"full_name":"Schlichter, Malte Christian","first_name":"Malte Christian","last_name":"Schlichter","id":"61977"},{"id":"7850","first_name":"Mathias","last_name":"Bobbert","full_name":"Bobbert, Mathias"},{"last_name":"Meschut","first_name":"Gerson","orcid":"0000-0002-2763-1246","full_name":"Meschut, Gerson","id":"32056"}],"publication_identifier":{"issn":["2666-3309"]},"title":"Numerical analysis of the robustness of self-pierce riveting with pre-formed joining partners","year":"2026","intvolume":" 13","date_updated":"2026-03-16T12:38:13Z","publication_status":"published","citation":{"mla":"Ludwig, Jean-Patrick, et al. “Numerical Analysis of the Robustness of Self-Pierce Riveting with Pre-Formed Joining Partners.” Journal of Advanced Joining Processes, vol. 13, 100391, Elsevier BV, 2026, doi:10.1016/j.jajp.2026.100391.","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. Journal of Advanced Joining Processes. 2026;13. doi:10.1016/j.jajp.2026.100391","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={10.1016/j.jajp.2026.100391}, 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} }","apa":"Ludwig, J.-P., Tolke, E., Schlichter, M. C., Bobbert, M., & Meschut, G. (2026). Numerical analysis of the robustness of self-pierce riveting with pre-formed joining partners. Journal of Advanced Joining Processes, 13, Article 100391. https://doi.org/10.1016/j.jajp.2026.100391","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,” Journal of Advanced Joining Processes, vol. 13, Art. no. 100391, 2026, doi: 10.1016/j.jajp.2026.100391.","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.” Journal of Advanced Joining Processes 13 (2026). https://doi.org/10.1016/j.jajp.2026.100391.","short":"J.-P. Ludwig, E. Tolke, M.C. Schlichter, M. Bobbert, G. Meschut, Journal of Advanced Joining Processes 13 (2026)."},"project":[{"name":"TRR 285 - Project Area A","_id":"131"},{"name":"TRR 285 - Subproject A01","_id":"135"},{"_id":"130","name":"TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten"}],"quality_controlled":"1","publisher":"Elsevier BV","_id":"64985","volume":13,"user_id":"76631","status":"public"},{"citation":{"short":"B. Gröger, J. Gerritzen, A. Hornig, M. Gude, Key Engineering Materials 1050 (2026) 227–234.","chicago":"Gröger, Benjamin, Johannes Gerritzen, Andreas Hornig, and Maik Gude. “Modelling Deformation Mechanisms Decomposition, Separation and Compaction in Mechanical Joining Processes of Fiber Reinforced Thermoplastics on Meso Scale.” Key Engineering Materials 1050 (2026): 227–34. https://doi.org/10.4028/p-e8wywr.","apa":"Gröger, B., Gerritzen, J., Hornig, A., & Gude, M. (2026). Modelling Deformation Mechanisms Decomposition, Separation and Compaction in Mechanical Joining Processes of Fiber Reinforced Thermoplastics on Meso Scale. Key Engineering Materials, 1050, 227–234. https://doi.org/10.4028/p-e8wywr","ieee":"B. Gröger, J. Gerritzen, A. Hornig, and M. Gude, “Modelling Deformation Mechanisms Decomposition, Separation and Compaction in Mechanical Joining Processes of Fiber Reinforced Thermoplastics on Meso Scale,” Key Engineering Materials, vol. 1050, pp. 227–234, 2026, doi: 10.4028/p-e8wywr.","ama":"Gröger B, Gerritzen J, Hornig A, Gude M. Modelling Deformation Mechanisms Decomposition, Separation and Compaction in Mechanical Joining Processes of Fiber Reinforced Thermoplastics on Meso Scale. Key Engineering Materials. 2026;1050:227-234. doi:10.4028/p-e8wywr","bibtex":"@article{Gröger_Gerritzen_Hornig_Gude_2026, title={Modelling Deformation Mechanisms Decomposition, Separation and Compaction in Mechanical Joining Processes of Fiber Reinforced Thermoplastics on Meso Scale}, volume={1050}, DOI={10.4028/p-e8wywr}, journal={Key Engineering Materials}, publisher={Trans Tech Publications, Ltd.}, author={Gröger, Benjamin and Gerritzen, Johannes and Hornig, Andreas and Gude, Maik}, year={2026}, pages={227–234} }","mla":"Gröger, Benjamin, et al. “Modelling Deformation Mechanisms Decomposition, Separation and Compaction in Mechanical Joining Processes of Fiber Reinforced Thermoplastics on Meso Scale.” Key Engineering Materials, vol. 1050, Trans Tech Publications, Ltd., 2026, pp. 227–34, doi:10.4028/p-e8wywr."},"project":[{"_id":"137","name":"TRR 285 - Subproject A03"},{"name":"TRR 285 - Project Area A","_id":"131"},{"_id":"130","name":"TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten"}],"status":"public","_id":"65582","publisher":"Trans Tech Publications, Ltd.","page":"227-234","volume":1050,"user_id":"105344","publication":"Key Engineering Materials","abstract":[{"text":"The mechanical joining of continuous fiber-reinforced thermoplastics (cFRTP) and metal sheets represents a promising approach for manufacturing hybrid lightweight structures. To reduce the time and cost associated with extensive experimental investigations, numerical modeling strategies are increasingly applied. In this numerical study, a further step in the modelling strategy for the direct pin-pressing (DPP) process of cFRTP and metal sheets is presented. The study focuses on modeling and simulating the occurring deformation mechanisms of decomposition, compaction, and separation of individual rovings on the mesoscale to analyze the resulting material structure. For this purpose, two simplified models were derived. The textile architecture is represented based on micrographs of cross-sections and discretized using the finite element method. The deformation of individual rovings during joining leads to a deformation of their initial elliptical cross section. To capture this level of resolution, both a cohesive zone and a pure contact approach are applied within the rovings. The highly viscous thermoplastic melt is modeled as a fluid employing the Arbitrary Lagrange–Eulerian (ALE) method. Matrix and roving meshes are coupled to account for fluid–structure interaction (FSI) during process. The study shows that coupling of matrix and rovings is necessary to obtain more accurate predictions of the deformation behaviour. Furthermore, the cohesive zone approach is better suited to simulate the emerging deformation mechanisms.","lang":"eng"}],"date_created":"2026-05-07T15:07:34Z","type":"journal_article","publication_identifier":{"issn":["1662-9795"]},"author":[{"first_name":"Benjamin","last_name":"Gröger","full_name":"Gröger, Benjamin"},{"id":"105344","full_name":"Gerritzen, Johannes","first_name":"Johannes","orcid":"0000-0002-0169-8602","last_name":"Gerritzen"},{"first_name":"Andreas","last_name":"Hornig","full_name":"Hornig, Andreas"},{"first_name":"Maik","last_name":"Gude","full_name":"Gude, Maik"}],"title":"Modelling Deformation Mechanisms Decomposition, Separation and Compaction in Mechanical Joining Processes of Fiber Reinforced Thermoplastics on Meso Scale","year":"2026","intvolume":" 1050","publication_status":"published","date_updated":"2026-05-07T15:10:16Z","language":[{"iso":"eng"}],"doi":"10.4028/p-e8wywr"},{"publication":"Journal of the Mechanics and Physics of Solids","abstract":[{"lang":"eng","text":"A coupled finite plasticity ductile damage and failure model is proposed for the finite element simulation of clinch joining, which incorporates stress-state dependency and regularisation by gradient-enhancement of the damage variable. Ductile damage is determined based on a failure indicator governed by a failure surface in stress space. The latter is exemplary chosen as a combination of the Hosford–Coulomb and Cockcroft–Latham–Oh failure criteria for the high and low stress triaxiality range, respectively, to cover the wide stress range encountered in forming. Damage is coupled to elasto-plasticity to capture the damage-induced degradation of the stiffness and flow stress. This affects the material behaviour up to failure, thereby realistically altering the stress state. Consequently, especially for highly ductile materials, where substantial necking and localisation precede material fracture, the failure prediction is enhanced. The resulting stress softening is regularised by gradient-enhancement to obtain mesh-objective results. The analysis of a modified punch test experiment emphasises how the damage-induced softening effect can strongly alter the actual stress state towards failure. Moreover, the impact of successful regularisation is shown, and the applicability of the damage and failure model to clinch joining is proven."}],"date_created":"2025-01-31T17:04:12Z","type":"journal_article","keyword":["Finite plasticity","Ductile damage","Gradient-enhancement","Stress-state dependency","Failure"],"publication_identifier":{"issn":["0022-5096"]},"author":[{"full_name":"Friedlein, Johannes","last_name":"Friedlein","first_name":"Johannes"},{"last_name":"Mergheim","first_name":"Julia","full_name":"Mergheim, Julia"},{"last_name":"Steinmann","first_name":"Paul","full_name":"Steinmann, Paul"}],"title":"Modelling of stress-state-dependent ductile damage with gradient-enhancement exemplified for clinch joining","year":"2025","intvolume":" 196","article_type":"original","date_updated":"2025-01-31T17:06:22Z","publication_status":"published","language":[{"iso":"eng"}],"article_number":"106026","doi":"10.1016/j.jmps.2025.106026","citation":{"mla":"Friedlein, Johannes, et al. “Modelling of Stress-State-Dependent Ductile Damage with Gradient-Enhancement Exemplified for Clinch Joining.” Journal of the Mechanics and Physics of Solids, vol. 196, 106026, Elsevier BV, 2025, doi:10.1016/j.jmps.2025.106026.","apa":"Friedlein, J., Mergheim, J., & Steinmann, P. (2025). Modelling of stress-state-dependent ductile damage with gradient-enhancement exemplified for clinch joining. Journal of the Mechanics and Physics of Solids, 196, Article 106026. https://doi.org/10.1016/j.jmps.2025.106026","ieee":"J. Friedlein, J. Mergheim, and P. Steinmann, “Modelling of stress-state-dependent ductile damage with gradient-enhancement exemplified for clinch joining,” Journal of the Mechanics and Physics of Solids, vol. 196, Art. no. 106026, 2025, doi: 10.1016/j.jmps.2025.106026.","short":"J. Friedlein, J. Mergheim, P. Steinmann, Journal of the Mechanics and Physics of Solids 196 (2025).","ama":"Friedlein J, Mergheim J, Steinmann P. Modelling of stress-state-dependent ductile damage with gradient-enhancement exemplified for clinch joining. Journal of the Mechanics and Physics of Solids. 2025;196. doi:10.1016/j.jmps.2025.106026","chicago":"Friedlein, Johannes, Julia Mergheim, and Paul Steinmann. “Modelling of Stress-State-Dependent Ductile Damage with Gradient-Enhancement Exemplified for Clinch Joining.” Journal of the Mechanics and Physics of Solids 196 (2025). https://doi.org/10.1016/j.jmps.2025.106026.","bibtex":"@article{Friedlein_Mergheim_Steinmann_2025, title={Modelling of stress-state-dependent ductile damage with gradient-enhancement exemplified for clinch joining}, volume={196}, DOI={10.1016/j.jmps.2025.106026}, number={106026}, journal={Journal of the Mechanics and Physics of Solids}, publisher={Elsevier BV}, author={Friedlein, Johannes and Mergheim, Julia and Steinmann, Paul}, year={2025} }"},"project":[{"_id":"130","grant_number":"418701707","name":"TRR 285: TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten"},{"name":"TRR 285 - A: TRR 285 - Project Area A","_id":"131"},{"_id":"139","name":"TRR 285 – A05: TRR 285 - Subproject A05"}],"status":"public","publisher":"Elsevier BV","_id":"58492","volume":196,"user_id":"84990"},{"type":"journal_article","date_created":"2026-02-16T06:56:31Z","project":[{"_id":"130","name":"TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten"},{"name":"TRR 285 - Project Area A","_id":"131"},{"name":"TRR 285 - Subproject A05","_id":"139"}],"publication":"Finite Elements in Analysis and Design","citation":{"mla":"Friedlein, Johannes, et al. “One-Way Coupled Staggered Implementation of Gradient-Enhanced Damage Models Coupled to Thermoplasticity.” Finite Elements in Analysis and Design, vol. 253, 104471, Elsevier BV, 2025, doi:10.1016/j.finel.2025.104471.","bibtex":"@article{Friedlein_Steinmann_Mergheim_2025, title={One-way coupled staggered implementation of gradient-enhanced damage models coupled to thermoplasticity}, volume={253}, DOI={10.1016/j.finel.2025.104471}, number={104471}, journal={Finite Elements in Analysis and Design}, publisher={Elsevier BV}, author={Friedlein, Johannes and Steinmann, Paul and Mergheim, Julia}, year={2025} }","ama":"Friedlein J, Steinmann P, Mergheim J. One-way coupled staggered implementation of gradient-enhanced damage models coupled to thermoplasticity. Finite Elements in Analysis and Design. 2025;253. doi:10.1016/j.finel.2025.104471","ieee":"J. Friedlein, P. Steinmann, and J. Mergheim, “One-way coupled staggered implementation of gradient-enhanced damage models coupled to thermoplasticity,” Finite Elements in Analysis and Design, vol. 253, Art. no. 104471, 2025, doi: 10.1016/j.finel.2025.104471.","apa":"Friedlein, J., Steinmann, P., & Mergheim, J. (2025). One-way coupled staggered implementation of gradient-enhanced damage models coupled to thermoplasticity. Finite Elements in Analysis and Design, 253, Article 104471. https://doi.org/10.1016/j.finel.2025.104471","chicago":"Friedlein, Johannes, Paul Steinmann, and Julia Mergheim. “One-Way Coupled Staggered Implementation of Gradient-Enhanced Damage Models Coupled to Thermoplasticity.” Finite Elements in Analysis and Design 253 (2025). https://doi.org/10.1016/j.finel.2025.104471.","short":"J. Friedlein, P. Steinmann, J. Mergheim, Finite Elements in Analysis and Design 253 (2025)."},"user_id":"84990","doi":"10.1016/j.finel.2025.104471","volume":253,"article_number":"104471","_id":"64157","language":[{"iso":"eng"}],"publisher":"Elsevier BV","publication_status":"published","date_updated":"2026-02-16T06:59:05Z","intvolume":" 253","status":"public","year":"2025","title":"One-way coupled staggered implementation of gradient-enhanced damage models coupled to thermoplasticity","publication_identifier":{"issn":["0168-874X"]},"author":[{"full_name":"Friedlein, Johannes","first_name":"Johannes","last_name":"Friedlein"},{"full_name":"Steinmann, Paul","first_name":"Paul","last_name":"Steinmann"},{"full_name":"Mergheim, Julia","first_name":"Julia","last_name":"Mergheim"}]},{"language":[{"iso":"eng"}],"article_number":"01081","main_file_link":[{"open_access":"1","url":"\thttps://doi.org/10.1051/matecconf/202540801081"}],"doi":"10.1051/matecconf/202540801081","author":[{"full_name":"Neuser, Moritz","last_name":"Neuser","first_name":"Moritz","id":"32340"},{"id":"61977","first_name":"Malte Christian","last_name":"Schlichter","full_name":"Schlichter, Malte Christian"},{"id":"48411","full_name":"Hoyer, Kay-Peter","first_name":"Kay-Peter","last_name":"Hoyer"},{"full_name":"Bobbert, Mathias","last_name":"Bobbert","first_name":"Mathias","id":"7850"},{"id":"32056","first_name":"Gerson","last_name":"Meschut","orcid":"0000-0002-2763-1246","full_name":"Meschut, Gerson"},{"last_name":"Schaper","first_name":"Mirko","full_name":"Schaper, Mirko","id":"43720"}],"title":"Mechanical joinability of microstructurally graded structural components manufactured from hypoeutectic aluminium casting alloys","year":"2025","article_type":"original","intvolume":" 408","publication_status":"published","date_updated":"2026-02-24T13:41:58Z","date_created":"2025-05-12T15:21:06Z","department":[{"_id":"43"},{"_id":"158"},{"_id":"157"},{"_id":"9"},{"_id":"321"}],"keyword":["Joining","Casting","Self-pierce riveting","Aluminium casting alloy"],"type":"journal_article","publication":"44th Conference of the International Deep Drawing Research Group (IDDRG 2025)","abstract":[{"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.","lang":"eng"}],"_id":"59872","volume":408,"user_id":"7850","conference":{"end_date":"2025-06-05","start_date":"2025-06-02","name":"44th Conference of the International Deep Drawing Research Group (IDDRG 2025)","location":"Lissabon (Portugal)"},"status":"public","oa":"1","citation":{"mla":"Neuser, Moritz, et al. “Mechanical Joinability of Microstructurally Graded Structural Components Manufactured from Hypoeutectic Aluminium Casting Alloys.” 44th Conference of the International Deep Drawing Research Group (IDDRG 2025), vol. 408, 01081, 2025, doi:10.1051/matecconf/202540801081.","apa":"Neuser, M., Schlichter, M. C., Hoyer, K.-P., Bobbert, M., Meschut, G., & Schaper, M. (2025). Mechanical joinability of microstructurally graded structural components manufactured from hypoeutectic aluminium casting alloys. 44th Conference of the International Deep Drawing Research Group (IDDRG 2025), 408, Article 01081. https://doi.org/10.1051/matecconf/202540801081","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,” 44th Conference of the International Deep Drawing Research Group (IDDRG 2025), vol. 408, Art. no. 01081, 2025, doi: 10.1051/matecconf/202540801081.","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.” 44th Conference of the International Deep Drawing Research Group (IDDRG 2025) 408 (2025). https://doi.org/10.1051/matecconf/202540801081.","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).","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. 44th Conference of the International Deep Drawing Research Group (IDDRG 2025). 2025;408. doi:10.1051/matecconf/202540801081","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={10.1051/matecconf/202540801081}, 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} }"},"project":[{"name":"TRR 285 - A: TRR 285 - Project Area A","_id":"131"},{"name":"TRR 285 – A02: TRR 285 - Subproject A02","_id":"136"},{"_id":"135","name":"TRR 285 – A01: TRR 285 - Subproject A01"},{"name":"TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten","_id":"130"}],"quality_controlled":"1"},{"_id":"60977","publisher":"Materials Research Forum LLC","volume":54,"user_id":"7850","status":"public","citation":{"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.","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 Materials Research Proceedings, Vol. 54. Materials Research Forum LLC, 2025. https://doi.org/10.21741/9781644903599-148.","apa":"Schlichter, M. C., Harabati, Ö., Ludwig, J.-P., Böhnke, M., Bielak, C. R., Bobbert, M., & Meschut, G. (2025). Experimental and numerical investigation of the influence of rolling-induced sheet metal deformation on SPR joints. Materials Research Proceedings, 54. https://doi.org/10.21741/9781644903599-148","ieee":"M. C. Schlichter et al., “Experimental and numerical investigation of the influence of rolling-induced sheet metal deformation on SPR joints,” in Materials Research Proceedings, 2025, vol. 54, doi: 10.21741/9781644903599-148.","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: Materials Research Proceedings. Vol 54. Materials Research Forum LLC; 2025. doi:10.21741/9781644903599-148","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={10.21741/9781644903599-148}, 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} }","mla":"Schlichter, Malte Christian, et al. “Experimental and Numerical Investigation of the Influence of Rolling-Induced Sheet Metal Deformation on SPR Joints.” Materials Research Proceedings, vol. 54, Materials Research Forum LLC, 2025, doi:10.21741/9781644903599-148."},"project":[{"_id":"135","name":"TRR 285 - Subproject A01"},{"name":"TRR 285 - Project Area A","_id":"131"},{"name":"TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten","_id":"130"}],"quality_controlled":"1","language":[{"iso":"eng"}],"doi":"10.21741/9781644903599-148","publication_identifier":{"issn":["2474-395X"]},"author":[{"id":"61977","full_name":"Schlichter, Malte Christian","last_name":"Schlichter","first_name":"Malte Christian"},{"id":"54972","last_name":"Harabati","first_name":"Özcan","full_name":"Harabati, Özcan"},{"last_name":"Ludwig","first_name":"Jean-Patrick","full_name":"Ludwig, Jean-Patrick","id":"76631"},{"full_name":"Böhnke, Max","last_name":"Böhnke","first_name":"Max","id":"45779"},{"id":"34782","first_name":"Christian Roman","last_name":"Bielak","full_name":"Bielak, Christian Roman"},{"id":"7850","full_name":"Bobbert, Mathias","last_name":"Bobbert","first_name":"Mathias"},{"id":"32056","full_name":"Meschut, Gerson","first_name":"Gerson","last_name":"Meschut","orcid":"0000-0002-2763-1246"}],"title":"Experimental and numerical investigation of the influence of rolling-induced sheet metal deformation on SPR joints","year":"2025","intvolume":" 54","publication_status":"published","date_updated":"2026-02-24T14:02:01Z","date_created":"2025-08-22T10:20:15Z","department":[{"_id":"157"}],"type":"conference","publication":"Materials Research Proceedings","abstract":[{"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.","lang":"eng"}]},{"publisher":"Materials Research Forum LLC","_id":"60978","user_id":"7850","volume":52,"status":"public","citation":{"mla":"Schlichter, Malte Christian, et al. “Investigation on Manufacturing-Induced Pre-Deformation on the Fatigue Behaviour of Clinched Joints.” Materials Research Proceedings, vol. 52, Materials Research Forum LLC, 2025, doi:10.21741/9781644903551-16.","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={10.21741/9781644903551-16}, 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} }","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: Materials Research Proceedings. Vol 52. Materials Research Forum LLC; 2025. doi:10.21741/9781644903551-16","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 Materials Research Proceedings, 2025, vol. 52, doi: 10.21741/9781644903551-16.","apa":"Schlichter, M. C., Harabati, Ö., Böhnke, M., Bielak, C. R., Bobbert, M., & Meschut, G. (2025). Investigation on manufacturing-induced pre-deformation on the fatigue behaviour of clinched joints. Materials Research Proceedings, 52. https://doi.org/10.21741/9781644903551-16","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 Materials Research Proceedings, Vol. 52. Materials Research Forum LLC, 2025. https://doi.org/10.21741/9781644903551-16.","short":"M.C. Schlichter, Ö. Harabati, M. Böhnke, C.R. Bielak, M. Bobbert, G. Meschut, in: Materials Research Proceedings, Materials Research Forum LLC, 2025."},"quality_controlled":"1","project":[{"_id":"131","name":"TRR 285 - Project Area A"},{"_id":"135","name":"TRR 285 - Subproject A01"},{"_id":"130","name":"TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten"}],"language":[{"iso":"eng"}],"doi":"10.21741/9781644903551-16","year":"2025","title":"Investigation on manufacturing-induced pre-deformation on the fatigue behaviour of clinched joints","publication_identifier":{"issn":["2474-395X"]},"author":[{"last_name":"Schlichter","first_name":"Malte Christian","full_name":"Schlichter, Malte Christian","id":"61977"},{"full_name":"Harabati, Özcan","last_name":"Harabati","first_name":"Özcan","id":"54972"},{"last_name":"Böhnke","first_name":"Max","full_name":"Böhnke, Max","id":"45779"},{"full_name":"Bielak, Christian Roman","first_name":"Christian Roman","last_name":"Bielak","id":"34782"},{"first_name":"Mathias","last_name":"Bobbert","full_name":"Bobbert, Mathias","id":"7850"},{"last_name":"Meschut","first_name":"Gerson","full_name":"Meschut, Gerson"}],"date_updated":"2026-02-24T14:02:35Z","publication_status":"published","intvolume":" 52","date_created":"2025-08-22T10:45:56Z","type":"conference","department":[{"_id":"157"}],"publication":"Materials Research Proceedings","abstract":[{"lang":"eng","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."}]},{"language":[{"iso":"eng"}],"doi":"10.21741/9781644903551-23","publication_identifier":{"issn":["2474-395X"]},"author":[{"last_name":"Chen","first_name":"Chin","full_name":"Chen, Chin"},{"id":"61977","last_name":"Schlichter","first_name":"Malte Christian","full_name":"Schlichter, Malte Christian"},{"full_name":"Harzheim, Sven","last_name":"Harzheim","first_name":"Sven"},{"last_name":"Hofmann","first_name":"Martin","full_name":"Hofmann, Martin"},{"last_name":"Bobbert","first_name":"Mathias","full_name":"Bobbert, Mathias","id":"7850"},{"orcid":"0000-0002-2763-1246","last_name":"Meschut","first_name":"Gerson","full_name":"Meschut, Gerson","id":"32056"},{"full_name":"Wallmersperger, Thomas","first_name":"Thomas","last_name":"Wallmersperger"}],"year":"2025","title":"High-cycle fatigue testing and parameter identification for numerical simulation of aluminum alloy EN AW-6014","intvolume":" 52","publication_status":"published","date_updated":"2026-02-24T13:43:56Z","date_created":"2025-04-15T11:14:53Z","department":[{"_id":"157"}],"type":"conference","publication":"Materials Research Proceedings","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.","lang":"eng"}],"_id":"59587","publisher":"Materials Research Forum LLC","volume":52,"user_id":"7850","status":"public","citation":{"apa":"Chen, C., Schlichter, M. C., Harzheim, S., Hofmann, M., Bobbert, M., Meschut, G., & Wallmersperger, T. (2025). High-cycle fatigue testing and parameter identification for numerical simulation of aluminum alloy EN AW-6014. Materials Research Proceedings, 52. https://doi.org/10.21741/9781644903551-23","mla":"Chen, Chin, et al. “High-Cycle Fatigue Testing and Parameter Identification for Numerical Simulation of Aluminum Alloy EN AW-6014.” Materials Research Proceedings, vol. 52, Materials Research Forum LLC, 2025, doi:10.21741/9781644903551-23.","ieee":"C. Chen et al., “High-cycle fatigue testing and parameter identification for numerical simulation of aluminum alloy EN AW-6014,” in Materials Research Proceedings, 2025, vol. 52, doi: 10.21741/9781644903551-23.","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 Materials Research Proceedings, Vol. 52. Materials Research Forum LLC, 2025. https://doi.org/10.21741/9781644903551-23.","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: Materials Research Proceedings. Vol 52. Materials Research Forum LLC; 2025. doi:10.21741/9781644903551-23","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={10.21741/9781644903551-23}, 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} }"},"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: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten","_id":"130"}],"quality_controlled":"1"},{"citation":{"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.","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 Materials Research Proceedings, Vol. 52. Materials Research Forum LLC, 2025. https://doi.org/10.21741/9781644903551-19.","apa":"Harabati, Ö., Bielak, C. R., Böhnke, M., Schlichter, M. C., Brockmeier, M., Bobbert, M., & Meschut, G. (2025). Cross-process damage modeling: A process-chain case study of clinching and self-pierced riveting for aluminum connections. Materials Research Proceedings, 52. https://doi.org/10.21741/9781644903551-19","ieee":"Ö. Harabati et al., “Cross-process damage modeling: A process-chain case study of clinching and self-pierced riveting for aluminum connections,” in Materials Research Proceedings, 2025, vol. 52, doi: 10.21741/9781644903551-19.","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: Materials Research Proceedings. Vol 52. Materials Research Forum LLC; 2025. doi:10.21741/9781644903551-19","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={10.21741/9781644903551-19}, 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.” Materials Research Proceedings, vol. 52, Materials Research Forum LLC, 2025, doi:10.21741/9781644903551-19."},"project":[{"_id":"131","name":"TRR 285 - A: TRR 285 - Project Area A"},{"_id":"135","name":"TRR 285 – A01: TRR 285 - Subproject A01"},{"_id":"130","name":"TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten"}],"quality_controlled":"1","_id":"60002","publisher":"Materials Research Forum LLC","volume":52,"user_id":"7850","status":"public","date_created":"2025-05-20T12:50:34Z","type":"conference","publication":"Materials Research Proceedings","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.","lang":"eng"}],"language":[{"iso":"eng"}],"doi":"10.21741/9781644903551-19","publication_identifier":{"issn":["2474-395X"]},"author":[{"id":"54972","last_name":"Harabati","first_name":"Özcan","full_name":"Harabati, Özcan"},{"id":"34782","full_name":"Bielak, Christian Roman","last_name":"Bielak","first_name":"Christian Roman"},{"full_name":"Böhnke, Max","first_name":"Max","last_name":"Böhnke","id":"45779"},{"last_name":"Schlichter","first_name":"Malte Christian","full_name":"Schlichter, Malte Christian","id":"61977"},{"last_name":"Brockmeier","first_name":"Marc","full_name":"Brockmeier, Marc"},{"id":"7850","full_name":"Bobbert, Mathias","first_name":"Mathias","last_name":"Bobbert"},{"last_name":"Meschut","first_name":"Gerson","orcid":"0000-0002-2763-1246","full_name":"Meschut, Gerson","id":"32056"}],"year":"2025","title":"Cross-process damage modeling: A process-chain case study of clinching and self-pierced riveting for aluminum connections","intvolume":" 52","date_updated":"2026-02-24T13:59:43Z","publication_status":"published"},{"volume":11,"user_id":"7850","_id":"59584","publisher":"Elsevier BV","status":"public","project":[{"name":"TRR 285 - A: TRR 285 - Project Area A","_id":"131"},{"_id":"135","name":"TRR 285 – A01: TRR 285 - Subproject A01"},{"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"}],"quality_controlled":"1","citation":{"apa":"Friedlein, J., Lüder, S., Kalich, J., Schmale, H. C., Böhnke, M., Schlichter, M. C., Bobbert, M., Meschut, G., Steinmann, P., & 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. Journal of Advanced Joining Processes, 11, Article 100299. https://doi.org/10.1016/j.jajp.2025.100299","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.” Journal of Advanced Joining Processes, vol. 11, 100299, Elsevier BV, 2025, doi:10.1016/j.jajp.2025.100299.","ieee":"J. Friedlein et al., “Application of stress-state-dependent ductile damage and failure model to clinch joining for a wide range of tool and material combinations,” Journal of Advanced Joining Processes, vol. 11, Art. no. 100299, 2025, doi: 10.1016/j.jajp.2025.100299.","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.” Journal of Advanced Joining Processes 11 (2025). https://doi.org/10.1016/j.jajp.2025.100299.","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).","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. Journal of Advanced Joining Processes. 2025;11. doi:10.1016/j.jajp.2025.100299","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={10.1016/j.jajp.2025.100299}, 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} }"},"doi":"10.1016/j.jajp.2025.100299","language":[{"iso":"eng"}],"article_number":"100299","intvolume":" 11","publication_status":"published","date_updated":"2026-02-24T14:00:55Z","author":[{"first_name":"Johannes","last_name":"Friedlein","full_name":"Friedlein, Johannes"},{"full_name":"Lüder, Stephan","first_name":"Stephan","last_name":"Lüder"},{"full_name":"Kalich, Jan","last_name":"Kalich","first_name":"Jan"},{"full_name":"Schmale, Hans Christian","last_name":"Schmale","first_name":"Hans Christian"},{"id":"45779","last_name":"Böhnke","first_name":"Max","full_name":"Böhnke, Max"},{"last_name":"Schlichter","first_name":"Malte Christian","full_name":"Schlichter, Malte Christian","id":"61977"},{"first_name":"Mathias","last_name":"Bobbert","full_name":"Bobbert, Mathias","id":"7850"},{"id":"32056","full_name":"Meschut, Gerson","last_name":"Meschut","orcid":"0000-0002-2763-1246","first_name":"Gerson"},{"last_name":"Steinmann","first_name":"Paul","full_name":"Steinmann, Paul"},{"full_name":"Mergheim, Julia","last_name":"Mergheim","first_name":"Julia"}],"publication_identifier":{"issn":["2666-3309"]},"year":"2025","title":"Application of stress-state-dependent ductile damage and failure model to clinch joining for a wide range of tool and material combinations","type":"journal_article","date_created":"2025-04-15T11:00:56Z","publication":"Journal of Advanced Joining Processes"},{"status":"public","user_id":"7850","volume":54,"_id":"60440","publisher":"Materials Research Forum LLC","quality_controlled":"1","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"},{"name":"TRR 285 – A01: TRR 285 - Subproject A01","_id":"135"}],"citation":{"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 Materials Research Proceedings, 2025, vol. 54, doi: 10.21741/9781644903599-153.","apa":"Holtkamp, P. K., Bielak, C. R., Bobbert, M., & Meschut, G. (2025). Simulation of the joining process of graded hardened multi-range capable rivets. Materials Research Proceedings, 54. https://doi.org/10.21741/9781644903599-153","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 Materials Research Proceedings, Vol. 54. Materials Research Forum LLC, 2025. https://doi.org/10.21741/9781644903599-153.","short":"P.K. Holtkamp, C.R. Bielak, M. Bobbert, G. Meschut, in: Materials Research Proceedings, Materials Research Forum LLC, 2025.","mla":"Holtkamp, Pia Katharina, et al. “Simulation of the Joining Process of Graded Hardened Multi-Range Capable Rivets.” Materials Research Proceedings, vol. 54, Materials Research Forum LLC, 2025, doi:10.21741/9781644903599-153.","bibtex":"@inproceedings{Holtkamp_Bielak_Bobbert_Meschut_2025, title={Simulation of the joining process of graded hardened multi-range capable rivets}, volume={54}, DOI={10.21741/9781644903599-153}, 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} }","ama":"Holtkamp PK, Bielak CR, Bobbert M, Meschut G. Simulation of the joining process of graded hardened multi-range capable rivets. In: Materials Research Proceedings. Vol 54. Materials Research Forum LLC; 2025. doi:10.21741/9781644903599-153"},"publication_status":"published","date_updated":"2026-02-24T14:12:10Z","intvolume":" 54","year":"2025","title":"Simulation of the joining process of graded hardened multi-range capable rivets","publication_identifier":{"issn":["2474-395X"]},"author":[{"full_name":"Holtkamp, Pia Katharina","last_name":"Holtkamp","first_name":"Pia Katharina","id":"44935"},{"id":"34782","full_name":"Bielak, Christian Roman","first_name":"Christian Roman","last_name":"Bielak"},{"id":"7850","last_name":"Bobbert","first_name":"Mathias","full_name":"Bobbert, Mathias"},{"full_name":"Meschut, Gerson","orcid":"0000-0002-2763-1246","last_name":"Meschut","first_name":"Gerson","id":"32056"}],"doi":"10.21741/9781644903599-153","language":[{"iso":"eng"}],"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."}],"publication":"Materials Research Proceedings","type":"conference","department":[{"_id":"43"},{"_id":"157"}],"date_created":"2025-06-27T08:23:00Z"},{"citation":{"ieee":"B. Gröger, J. Gerritzen, A. Hornig, and M. Gude, “Modeling approaches for the decomposition behavior of preconsolidated rovings throughout local deformation processes,” in Sheet Metal 2025, 2025, pp. 268–275, doi: 10.21741/9781644903551-33.","apa":"Gröger, B., Gerritzen, J., Hornig, A., & Gude, M. (2025). Modeling approaches for the decomposition behavior of preconsolidated rovings throughout local deformation processes. In G. Meschut, M. Bobbert, J. Duflou, L. Fratini, H. Hagenah, P. Martins, M. Merklein, & F. Micari (Eds.), Sheet Metal 2025 (pp. 268–275). Materials Research Forum LLC, Materials Research Foundations. https://doi.org/10.21741/9781644903551-33","short":"B. Gröger, J. Gerritzen, A. Hornig, M. Gude, in: G. Meschut, M. Bobbert, J. Duflou, L. Fratini, H. Hagenah, P. Martins, M. Merklein, F. Micari (Eds.), Sheet Metal 2025, Materials Research Forum LLC, Materials Research Foundations, 2025, pp. 268–275.","chicago":"Gröger, Benjamin, Johannes Gerritzen, Andreas Hornig, and Maik Gude. “Modeling Approaches for the Decomposition Behavior of Preconsolidated Rovings throughout Local Deformation Processes.” In Sheet Metal 2025, edited by G. Meschut, M. Bobbert, J. Duflou, L. Fratini, H. Hagenah, P. Martins, M. Merklein, and F. Micari, 268–275. Materials Research Proceedings. Materials Research Forum LLC, Materials Research Foundations, 2025. https://doi.org/10.21741/9781644903551-33.","mla":"Gröger, Benjamin, et al. “Modeling Approaches for the Decomposition Behavior of Preconsolidated Rovings throughout Local Deformation Processes.” Sheet Metal 2025, edited by G. Meschut et al., Materials Research Forum LLC, Materials Research Foundations, 2025, pp. 268–275, doi:10.21741/9781644903551-33.","bibtex":"@inproceedings{Gröger_Gerritzen_Hornig_Gude_2025, series={Materials Research Proceedings}, title={Modeling approaches for the decomposition behavior of preconsolidated rovings throughout local deformation processes}, DOI={10.21741/9781644903551-33}, booktitle={Sheet Metal 2025}, publisher={Materials Research Forum LLC, Materials Research Foundations}, author={Gröger, Benjamin and Gerritzen, Johannes and Hornig, Andreas and Gude, Maik}, editor={Meschut, G. and Bobbert, M. and Duflou, J. and Fratini, L. and Hagenah, H. and Martins, P. and Merklein, M. and Micari, F.}, year={2025}, pages={268–275}, collection={Materials Research Proceedings} }","ama":"Gröger B, Gerritzen J, Hornig A, Gude M. Modeling approaches for the decomposition behavior of preconsolidated rovings throughout local deformation processes. In: Meschut G, Bobbert M, Duflou J, et al., eds. Sheet Metal 2025. Materials Research Proceedings. Materials Research Forum LLC, Materials Research Foundations; 2025:268–275. doi:10.21741/9781644903551-33"},"project":[{"_id":"130","name":"TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten"},{"_id":"137","name":"TRR 285 - Subproject A03"},{"name":"TRR 285 - Project Area A","_id":"131"}],"_id":"62079","publisher":"Materials Research Forum LLC, Materials Research Foundations","page":"268–275","editor":[{"full_name":"Meschut, G.","last_name":"Meschut","first_name":"G."},{"full_name":"Bobbert, M.","first_name":"M.","last_name":"Bobbert"},{"full_name":"Duflou, J.","first_name":"J.","last_name":"Duflou"},{"last_name":"Fratini","first_name":"L.","full_name":"Fratini, L."},{"full_name":"Hagenah, H.","first_name":"H.","last_name":"Hagenah"},{"full_name":"Martins, P.","last_name":"Martins","first_name":"P."},{"first_name":"M.","last_name":"Merklein","full_name":"Merklein, M."},{"full_name":"Micari, F.","first_name":"F.","last_name":"Micari"}],"user_id":"105344","status":"public","date_created":"2025-11-04T12:48:21Z","type":"conference","keyword":["Finite Element Method (FEM)","Process","Thermoplastic Fiber Reinforced Plastic"],"publication":"Sheet Metal 2025","abstract":[{"lang":"eng","text":"This paper investigates two modeling approaches for the simulation of the deformation and decomposition behavior of preconsolidated rovings above the thermoplastic matrix{\\textquoteright} melting temperature. This is crucial for capturing the local material structure after processes introducing highly localized deformation such as mechanical joining processes between metal and fiber reinforced thermoplastics (FRTP). A generic finite element (FE) model is developed, incorporating interfaces discretized through either cohesive zone (CZ) elements or Coulomb friction-based contacts. The material parameters for the FE elements are derived from the initial stiffness of a statistical volume element (SVE) at micro scale modelled with an Arbitrary-Lagrange-Eulerian method for three load cases. The CZ properties calculated are based on the shear viscosity of the composite. The CZ and contact modelling approaches are evaluated using three load cases of the SVE, comparing force-displacement curves. Under simple loading conditions, such as normal pressure tension and bending, both methods produce similar results; however, in complex load cases, the CZ approach shows clear advantages in handling interface interactions and shows robust simulations. The CZ approach thus presents a promising method for simulating roving decomposition in FRTP-metal joining applications above the matrix{\\textquoteright} melting temperature."}],"language":[{"iso":"eng"}],"series_title":"Materials Research Proceedings","doi":"10.21741/9781644903551-33","publication_identifier":{"isbn":["978-1-64490-354-4"]},"author":[{"full_name":"Gröger, Benjamin","last_name":"Gröger","first_name":"Benjamin"},{"last_name":"Gerritzen","first_name":"Johannes","orcid":"0000-0002-0169-8602","full_name":"Gerritzen, Johannes","id":"105344"},{"full_name":"Hornig, Andreas","last_name":"Hornig","first_name":"Andreas"},{"last_name":"Gude","first_name":"Maik","full_name":"Gude, Maik"}],"title":"Modeling approaches for the decomposition behavior of preconsolidated rovings throughout local deformation processes","year":"2025","date_updated":"2026-02-27T06:43:19Z"},{"title":"Efficient failure information propagation under complex stress states in fiber reinforced polymers: From micro- to meso-scale using machine learning","year":"2025","publication_identifier":{"isbn":["978-1-64490-354-4"]},"author":[{"full_name":"Gerritzen, Johannes","orcid":"0000-0002-0169-8602","first_name":"Johannes","last_name":"Gerritzen","id":"105344"},{"full_name":"Hornig, Andreas","first_name":"Andreas","last_name":"Hornig"},{"full_name":"Gude, Maik","last_name":"Gude","first_name":"Maik"}],"date_updated":"2026-02-27T06:43:37Z","series_title":"Materials Research Proceedings","language":[{"iso":"eng"}],"doi":"10.21741/9781644903551-32","publication":"Sheet Metal 2025","abstract":[{"lang":"eng","text":"The failure behavior of fiber reinforced polymers (FRP) is strongly influenced by their microstructure, i.e. fiber arrangement or local fiber volume content. However, this information cannot be directly used for structural analyses, since it requires a discretization on micrometer level. Therefore, current failure theories do not directly account for such effects, but describe the behavior averaged over an entire specimen. This foundation in experimentally accessible loading conditions leads to purely theory based extension to more complex stress states without direct validation possibilities. This work aims at leveraging micro-scale simulations to obtain failure information under arbitrary loading conditions. The results are propagated to the meso-scale, enabling efficient structural analyses, by means of machine learning (ML). It is shown that the ML model is capable of correctly assessing previously unseen stress states and therefore poses an efficient tool of exploiting information from the micro-scale in larger simulations."}],"date_created":"2025-11-04T12:48:37Z","type":"conference","keyword":["Failure","Fiber Reinforced Plastic","Machine Learning"],"status":"public","page":"260–267","publisher":"Materials Research Forum LLC, Materials Research Foundations","_id":"62080","user_id":"105344","editor":[{"first_name":"G.","last_name":"Meschut","full_name":"Meschut, G."},{"last_name":"Bobbert","first_name":"M.","full_name":"Bobbert, M."},{"first_name":"J.","last_name":"Duflou","full_name":"Duflou, J."},{"first_name":"L.","last_name":"Fratini","full_name":"Fratini, L."},{"full_name":"Hagenah, H.","last_name":"Hagenah","first_name":"H."},{"last_name":"Martins","first_name":"P.","full_name":"Martins, P."},{"full_name":"Merklein, M.","last_name":"Merklein","first_name":"M."},{"full_name":"Micari, F.","first_name":"F.","last_name":"Micari"}],"citation":{"mla":"Gerritzen, Johannes, et al. “Efficient Failure Information Propagation under Complex Stress States in Fiber Reinforced Polymers: From Micro- to Meso-Scale Using Machine Learning.” Sheet Metal 2025, edited by G. Meschut et al., Materials Research Forum LLC, Materials Research Foundations, 2025, pp. 260–267, doi:10.21741/9781644903551-32.","ama":"Gerritzen J, Hornig A, Gude M. Efficient failure information propagation under complex stress states in fiber reinforced polymers: From micro- to meso-scale using machine learning. In: Meschut G, Bobbert M, Duflou J, et al., eds. Sheet Metal 2025. Materials Research Proceedings. Materials Research Forum LLC, Materials Research Foundations; 2025:260–267. doi:10.21741/9781644903551-32","bibtex":"@inproceedings{Gerritzen_Hornig_Gude_2025, series={Materials Research Proceedings}, title={Efficient failure information propagation under complex stress states in fiber reinforced polymers: From micro- to meso-scale using machine learning}, DOI={10.21741/9781644903551-32}, booktitle={Sheet Metal 2025}, publisher={Materials Research Forum LLC, Materials Research Foundations}, author={Gerritzen, Johannes and Hornig, Andreas and Gude, Maik}, editor={Meschut, G. and Bobbert, M. and Duflou, J. and Fratini, L. and Hagenah, H. and Martins, P. and Merklein, M. and Micari, F.}, year={2025}, pages={260–267}, collection={Materials Research Proceedings} }","apa":"Gerritzen, J., Hornig, A., & Gude, M. (2025). Efficient failure information propagation under complex stress states in fiber reinforced polymers: From micro- to meso-scale using machine learning. In G. Meschut, M. Bobbert, J. Duflou, L. Fratini, H. Hagenah, P. Martins, M. Merklein, & F. Micari (Eds.), Sheet Metal 2025 (pp. 260–267). Materials Research Forum LLC, Materials Research Foundations. https://doi.org/10.21741/9781644903551-32","ieee":"J. Gerritzen, A. Hornig, and M. Gude, “Efficient failure information propagation under complex stress states in fiber reinforced polymers: From micro- to meso-scale using machine learning,” in Sheet Metal 2025, 2025, pp. 260–267, doi: 10.21741/9781644903551-32.","chicago":"Gerritzen, Johannes, Andreas Hornig, and Maik Gude. “Efficient Failure Information Propagation under Complex Stress States in Fiber Reinforced Polymers: From Micro- to Meso-Scale Using Machine Learning.” In Sheet Metal 2025, edited by G. Meschut, M. Bobbert, J. Duflou, L. Fratini, H. Hagenah, P. Martins, M. Merklein, and F. Micari, 260–267. Materials Research Proceedings. Materials Research Forum LLC, Materials Research Foundations, 2025. https://doi.org/10.21741/9781644903551-32.","short":"J. Gerritzen, A. Hornig, M. Gude, in: G. Meschut, M. Bobbert, J. Duflou, L. Fratini, H. Hagenah, P. Martins, M. Merklein, F. Micari (Eds.), Sheet Metal 2025, Materials Research Forum LLC, Materials Research Foundations, 2025, pp. 260–267."},"project":[{"name":"TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten","_id":"130"},{"_id":"137","name":"TRR 285 - Subproject A03"},{"_id":"131","name":"TRR 285 - Project Area A"}]},{"type":"journal_article","date_created":"2025-11-04T12:49:13Z","project":[{"name":"TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten","_id":"130"},{"name":"TRR 285 - Subproject A03","_id":"137"},{"_id":"131","name":"TRR 285 - Project Area A"}],"publication":"Materials & Design","citation":{"chicago":"Gerritzen, Johannes, Benjamin Gröger, Matthias Zscheyge, Andreas Hornig, and Maik Gude. “3D Viscoelastic Plastic Model Coupled with a Continuum Damage Formulation for Fiber Reinforced Polymers.” Materials & Design 260 (2025). https://doi.org/10.1016/j.matdes.2025.114969.","short":"J. Gerritzen, B. Gröger, M. Zscheyge, A. Hornig, M. Gude, Materials & Design 260 (2025).","apa":"Gerritzen, J., Gröger, B., Zscheyge, M., Hornig, A., & Gude, M. (2025). 3D viscoelastic plastic model coupled with a continuum damage formulation for fiber reinforced polymers. Materials & Design, 260, Article 114969. https://doi.org/10.1016/j.matdes.2025.114969","ieee":"J. Gerritzen, B. Gröger, M. Zscheyge, A. Hornig, and M. Gude, “3D viscoelastic plastic model coupled with a continuum damage formulation for fiber reinforced polymers,” Materials & Design, vol. 260, Art. no. 114969, 2025, doi: 10.1016/j.matdes.2025.114969.","ama":"Gerritzen J, Gröger B, Zscheyge M, Hornig A, Gude M. 3D viscoelastic plastic model coupled with a continuum damage formulation for fiber reinforced polymers. Materials & Design. 2025;260. doi:10.1016/j.matdes.2025.114969","bibtex":"@article{Gerritzen_Gröger_Zscheyge_Hornig_Gude_2025, title={3D viscoelastic plastic model coupled with a continuum damage formulation for fiber reinforced polymers}, volume={260}, DOI={10.1016/j.matdes.2025.114969}, number={114969}, journal={Materials & Design}, publisher={Elsevier BV}, author={Gerritzen, Johannes and Gröger, Benjamin and Zscheyge, Matthias and Hornig, Andreas and Gude, Maik}, year={2025} }","mla":"Gerritzen, Johannes, et al. “3D Viscoelastic Plastic Model Coupled with a Continuum Damage Formulation for Fiber Reinforced Polymers.” Materials & Design, vol. 260, 114969, Elsevier BV, 2025, doi:10.1016/j.matdes.2025.114969."},"user_id":"105344","doi":"10.1016/j.matdes.2025.114969","volume":260,"article_number":"114969","_id":"62081","publisher":"Elsevier BV","language":[{"iso":"eng"}],"publication_status":"published","date_updated":"2026-02-27T06:43:55Z","intvolume":" 260","status":"public","title":"3D viscoelastic plastic model coupled with a continuum damage formulation for fiber reinforced polymers","year":"2025","author":[{"id":"105344","full_name":"Gerritzen, Johannes","first_name":"Johannes","orcid":"0000-0002-0169-8602","last_name":"Gerritzen"},{"full_name":"Gröger, Benjamin","last_name":"Gröger","first_name":"Benjamin"},{"full_name":"Zscheyge, Matthias","first_name":"Matthias","last_name":"Zscheyge"},{"last_name":"Hornig","first_name":"Andreas","full_name":"Hornig, Andreas"},{"first_name":"Maik","last_name":"Gude","full_name":"Gude, Maik"}],"publication_identifier":{"issn":["0264-1275"]}},{"publication_status":"published","date_updated":"2026-02-27T06:45:47Z","intvolume":" 13","title":"Quality assurance of clinched joints using explainable machine learning","status":"public","year":"2025","author":[{"full_name":"Gerritzen, Johannes","last_name":"Gerritzen","first_name":"Johannes","orcid":"0000-0002-0169-8602","id":"105344"},{"first_name":"Kunal","last_name":"Chopra","full_name":"Chopra, Kunal"},{"id":"98812","full_name":"Reschke, Gregor","last_name":"Reschke","first_name":"Gregor"},{"last_name":"Hornig","first_name":"Andreas","full_name":"Hornig, Andreas"},{"last_name":"Brosius","first_name":"Alexander","full_name":"Brosius, Alexander"},{"first_name":"Maik","last_name":"Gude","full_name":"Gude, Maik"}],"publication_identifier":{"issn":["2666-3309"]},"user_id":"105344","doi":"10.1016/j.jajp.2025.100368","volume":13,"article_number":"100368","_id":"63828","language":[{"iso":"eng"}],"publisher":"Elsevier BV","project":[{"name":"TRR 285 - Subproject A03","_id":"137"},{"name":"TRR 285 - Project Area A","_id":"131"},{"name":"TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten","_id":"130"},{"_id":"133","name":"TRR 285 - Project Area C"},{"_id":"148","name":"TRR 285 - Subproject C04"}],"publication":"Journal of Advanced Joining Processes","citation":{"ama":"Gerritzen J, Chopra K, Reschke G, Hornig A, Brosius A, Gude M. Quality assurance of clinched joints using explainable machine learning. Journal of Advanced Joining Processes. 2025;13. doi:10.1016/j.jajp.2025.100368","bibtex":"@article{Gerritzen_Chopra_Reschke_Hornig_Brosius_Gude_2025, title={Quality assurance of clinched joints using explainable machine learning}, volume={13}, DOI={10.1016/j.jajp.2025.100368}, number={100368}, journal={Journal of Advanced Joining Processes}, publisher={Elsevier BV}, author={Gerritzen, Johannes and Chopra, Kunal and Reschke, Gregor and Hornig, Andreas and Brosius, Alexander and Gude, Maik}, year={2025} }","mla":"Gerritzen, Johannes, et al. “Quality Assurance of Clinched Joints Using Explainable Machine Learning.” Journal of Advanced Joining Processes, vol. 13, 100368, Elsevier BV, 2025, doi:10.1016/j.jajp.2025.100368.","short":"J. Gerritzen, K. Chopra, G. Reschke, A. Hornig, A. Brosius, M. Gude, Journal of Advanced Joining Processes 13 (2025).","chicago":"Gerritzen, Johannes, Kunal Chopra, Gregor Reschke, Andreas Hornig, Alexander Brosius, and Maik Gude. “Quality Assurance of Clinched Joints Using Explainable Machine Learning.” Journal of Advanced Joining Processes 13 (2025). https://doi.org/10.1016/j.jajp.2025.100368.","apa":"Gerritzen, J., Chopra, K., Reschke, G., Hornig, A., Brosius, A., & Gude, M. (2025). Quality assurance of clinched joints using explainable machine learning. Journal of Advanced Joining Processes, 13, Article 100368. https://doi.org/10.1016/j.jajp.2025.100368","ieee":"J. Gerritzen, K. Chopra, G. Reschke, A. Hornig, A. Brosius, and M. Gude, “Quality assurance of clinched joints using explainable machine learning,” Journal of Advanced Joining Processes, vol. 13, Art. no. 100368, 2025, doi: 10.1016/j.jajp.2025.100368."},"type":"journal_article","date_created":"2026-02-02T08:32:04Z"},{"date_created":"2025-12-01T13:46:42Z","department":[{"_id":"43"},{"_id":"9"},{"_id":"158"},{"_id":"321"}],"keyword":["Bildauswertendes Verfahren","Mikrostrukturanalyse","AlSi-System","Si-Morphologie"],"type":"conference","publication":"Bildauswertendes Verfahren zur Evaluierung der Mikrostruktur von AlSi-Systemen","abstract":[{"lang":"ger","text":"Aluminium-Silizium-Legierungen (AlSi) werden insbesondere bei der gießtechnischen\r\nHerstellung von Leichtbaukomponenten für Fahrzeuge verwendet. Dieses Legierungssystem hat hervorragende\r\nGießeigenschaften bei gleichzeitig akzeptablen mechanischen Eigenschaften. Aufgrund des hohen\r\nSilizium-(Si)-Gehaltes, wodurch die Volumenkontraktion im Phasenübergang von flüssig-fest nahezu\r\nunterbunden wird, neigen AlSi-Legierungen dazu, feinere oder gröbere Si-Platten bei unterschiedlichen\r\nErstarrungsgeschwindigkeiten zu bilden. Um die mechanischen Eigenschaften zu verbessern, werden\r\ndem Legierungssystem in der Schmelzphase entweder Natrium (Na) oder Strontium (Sr) zugesetzt. Dies\r\nhat zur Folge, dass sich eine fein lamellare Si-Morphologie bei der Erstarrung ausbildet; dies kann ebenfalls\r\ndurch hohe Erstarrungsgeschwindigkeiten erreicht werden. Ein nachfolgendes Lösungsglühen bewirkt\r\neine Sphäroidisierung der Si-Partikel und dient der Steigerung der Duktilität. Aktuell fehlen fundierte\r\nErkenntnisse zur Ausprägung der Si-Morphologie in Abhängigkeit der Erstarrungsgeschwindigkeit oder\r\ninfolge einer Wärmebehandlung. Vor diesem Hintergrund werden in dieser Studie verschiedene Behandlungsparameter\r\nin Bezug auf das Einformverhalten der Si-Partikel mit einem bildauswertenden Verfahren\r\nevaluiert sowie unter Bezug auf verschiedene chemische Zusammensetzungen miteinander korreliert."},{"text":"Aluminium-silicon alloys (AlSi) are used in the casting of lightweight vehicle components. This\r\nalloy system has excellent casting properties accompanied by acceptable mechanical properties. Due to\r\nthe high silicon (Si) content, which almost completely prevents volume contraction during the liquid-solid\r\nphase transition, AlSi alloys tend to form finer or coarser Si plates at different solidification rates. To\r\nimprove the mechanical properties, either sodium (Na) or strontium (Sr) is added to the alloy system in\r\nthe melting phase. This results in the formation of a fine lamellar Si morphology during solidification, which\r\ncan also be achieved by high solidification rates. Subsequent solution annealing causes spheroidisation\r\nof the Si particles and increases ductility. Currently, there is a lack in scientific knowledge regarding the\r\nSi-morphology as a function of solidification rate or as a result of heat treatment. Therefore, this study\r\nevaluates various treatment parameters in relation to the shaping behaviour of Si particles using an image\r\nanalysis method and correlates them with different chemical compositions.","lang":"eng"}],"language":[{"iso":"ger"}],"alternative_title":["Image analysis method for evaluating the microstructure of AlSi-alloys"],"author":[{"id":"32340","last_name":"Neuser","first_name":"Moritz","full_name":"Neuser, Moritz"},{"full_name":"Cichon, Gerrit","last_name":"Cichon","first_name":"Gerrit"},{"full_name":"Hoyer, Kay-Peter","last_name":"Hoyer","first_name":"Kay-Peter","id":"48411"},{"id":"43720","full_name":"Schaper, Mirko","first_name":"Mirko","last_name":"Schaper"}],"publication_identifier":{"isbn":["978-3-88355-454-9"]},"year":"2025","title":"Bildauswertendes Verfahren zur Evaluierung der Mikrostruktur von AlSi-Systemen","intvolume":" 43","date_updated":"2025-12-01T13:46:53Z","publication_status":"published","place":"Sankt Augustin","citation":{"apa":"Neuser, M., Cichon, G., Hoyer, K.-P., & Schaper, M. (2025). Bildauswertendes Verfahren zur Evaluierung der Mikrostruktur von AlSi-Systemen. Bildauswertendes Verfahren zur Evaluierung der Mikrostruktur von AlSi-Systemen, 43, 454–459.","ieee":"M. Neuser, G. Cichon, K.-P. Hoyer, and M. Schaper, “Bildauswertendes Verfahren zur Evaluierung der Mikrostruktur von AlSi-Systemen,” in Bildauswertendes Verfahren zur Evaluierung der Mikrostruktur von AlSi-Systemen, Dresden, 2025, vol. 43, pp. 454–459.","chicago":"Neuser, Moritz, Gerrit Cichon, Kay-Peter Hoyer, and Mirko Schaper. “Bildauswertendes Verfahren zur Evaluierung der Mikrostruktur von AlSi-Systemen.” In Bildauswertendes Verfahren zur Evaluierung der Mikrostruktur von AlSi-Systemen, 43:454–59. Sankt Augustin: Deutsche Gesellschaft für Materialkunde (DGM), 2025.","short":"M. Neuser, G. Cichon, K.-P. Hoyer, M. Schaper, in: Bildauswertendes Verfahren zur Evaluierung der Mikrostruktur von AlSi-Systemen, Deutsche Gesellschaft für Materialkunde (DGM), Sankt Augustin, 2025, pp. 454–459.","mla":"Neuser, Moritz, et al. “Bildauswertendes Verfahren zur Evaluierung der Mikrostruktur von AlSi-Systemen.” Bildauswertendes Verfahren zur Evaluierung der Mikrostruktur von AlSi-Systemen, vol. 43, Deutsche Gesellschaft für Materialkunde (DGM), 2025, pp. 454–59.","ama":"Neuser M, Cichon G, Hoyer K-P, Schaper M. Bildauswertendes Verfahren zur Evaluierung der Mikrostruktur von AlSi-Systemen. In: Bildauswertendes Verfahren zur Evaluierung der Mikrostruktur von AlSi-Systemen. Vol 43. Deutsche Gesellschaft für Materialkunde (DGM); 2025:454-459.","bibtex":"@inproceedings{Neuser_Cichon_Hoyer_Schaper_2025, place={Sankt Augustin}, title={Bildauswertendes Verfahren zur Evaluierung der Mikrostruktur von AlSi-Systemen}, volume={43}, booktitle={Bildauswertendes Verfahren zur Evaluierung der Mikrostruktur von AlSi-Systemen}, publisher={Deutsche Gesellschaft für Materialkunde (DGM)}, author={Neuser, Moritz and Cichon, Gerrit and Hoyer, Kay-Peter and Schaper, Mirko}, year={2025}, pages={454–459} }"},"project":[{"_id":"130","name":"TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten"},{"name":"TRR 285 - Project Area A","_id":"131"},{"name":"TRR 285 - Subproject A02","_id":"136"}],"quality_controlled":"1","publisher":"Deutsche Gesellschaft für Materialkunde (DGM)","_id":"62725","page":"454 - 459","volume":43,"user_id":"32340","conference":{"end_date":"2025-11-28","location":"Dresden","name":"Werkstoffprüfung - 43. Vortrags- und Diskussionstagung Werkstoffprüfung 2025","start_date":"2025-11-27"},"status":"public"},{"publication":"43. Vortrags- und Diskussionstagung Werkstoffprüfung 2025","extern":"1","abstract":[{"lang":"ger","text":"Zur Prüfung der mechanischen Eigenschaften von mechanisch gefügten Verbindungen wird gemäß der Normung in der Regel nur ein Fügepunkt verwendet. In diesem Beitrag wird die Prüfung von Mehrfachanordnungen von Clinchpunkten in einem modifizierten Torsionsversuch beschrieben. Bei den Fügeverbindungen der Proben aus artgleichen Werkstoffen handelt es sich um zwei Varianten symmetrischer Mehrfachanordnungen von vier Clinchpunkten mit zwei unterschiedlichen Fügepunktabständen, was zu zwei verschiedenen Längen des Wirkabstands in Bezug auf die Rotationsachse im Torsionsversuch führt. Das erste Teilziel der Untersuchung ist die Bewertung der Tragfähigkeit der Mehrfachanordnungen von Clinchpunkten unter Torsionsbeanspruchung. Ein zweites Teilziel ist die Analyse des Einflusses eines zusätzlichen Clinchpunkts, der als Drehgelenk in der Rotationsachse wirkt, auf das Tragverhalten und das Versagensverhalten der Fügeverbindung. Aus den erarbeiteten Resultaten werden Erkenntnisse zum Tragverhalten der Fügeverbindungen abgeleitet und eine Überschlagsrechnung vorgestellt, um Richtlinien zur konstruktiven Auslegung von Bauteilen aufzustellen."}],"date_created":"2025-12-10T13:22:14Z","department":[{"_id":"630"}],"keyword":["Clinchen","Mehrfachanordnung","Torsionsprüfung","Tragfähigkeit"],"type":"conference","author":[{"id":"104468","last_name":"Lüder","orcid":"https://orcid.org/0000-0002-9086-3031","first_name":"Stephan","full_name":"Lüder, Stephan"},{"last_name":"Wolf","first_name":"Eugen","orcid":"0009-0001-1904-7023","full_name":"Wolf, Eugen","id":"104464"},{"first_name":"Alexander","last_name":"Brosius","full_name":"Brosius, Alexander"},{"first_name":"Hans Christian","last_name":"Schmale","full_name":"Schmale, Hans Christian"}],"corporate_editor":["Deutsche Gesellschaft für Materialkunde e.V. (DGM)"],"publication_identifier":{"isbn":["978-3-88355-454-9"]},"title":"Modifizierter Torsionsversuch zur Untersuchung des Tragverhaltens von Clinchpunktmehrfachanordnungen","year":"2025","publication_status":"published","date_updated":"2025-12-11T08:21:34Z","language":[{"iso":"ger"}],"citation":{"ieee":"S. Lüder, E. Wolf, A. Brosius, and H. C. Schmale, “Modifizierter Torsionsversuch zur Untersuchung des Tragverhaltens von Clinchpunktmehrfachanordnungen,” in 43. Vortrags- und Diskussionstagung Werkstoffprüfung 2025, Dresden, 2025, pp. 478–483.","apa":"Lüder, S., Wolf, E., Brosius, A., & Schmale, H. C. (2025). Modifizierter Torsionsversuch zur Untersuchung des Tragverhaltens von Clinchpunktmehrfachanordnungen. In M. Zimmermann & Deutsche Gesellschaft für Materialkunde e.V. (DGM) (Eds.), 43. Vortrags- und Diskussionstagung Werkstoffprüfung 2025 (pp. 478–483).","short":"S. Lüder, E. Wolf, A. Brosius, H.C. Schmale, in: M. Zimmermann, Deutsche Gesellschaft für Materialkunde e.V. (DGM) (Eds.), 43. Vortrags- und Diskussionstagung Werkstoffprüfung 2025, Sankt Augustin, 2025, pp. 478–483.","chicago":"Lüder, Stephan, Eugen Wolf, Alexander Brosius, and Hans Christian Schmale. “Modifizierter Torsionsversuch zur Untersuchung des Tragverhaltens von Clinchpunktmehrfachanordnungen.” In 43. Vortrags- und Diskussionstagung Werkstoffprüfung 2025, edited by Martina Zimmermann and Deutsche Gesellschaft für Materialkunde e.V. (DGM), 478–83. Sankt Augustin, 2025.","mla":"Lüder, Stephan, et al. “Modifizierter Torsionsversuch zur Untersuchung des Tragverhaltens von Clinchpunktmehrfachanordnungen.” 43. Vortrags- und Diskussionstagung Werkstoffprüfung 2025, edited by Martina Zimmermann and Deutsche Gesellschaft für Materialkunde e.V. (DGM), 2025, pp. 478–83.","bibtex":"@inproceedings{Lüder_Wolf_Brosius_Schmale_2025, place={Sankt Augustin}, title={Modifizierter Torsionsversuch zur Untersuchung des Tragverhaltens von Clinchpunktmehrfachanordnungen}, booktitle={43. Vortrags- und Diskussionstagung Werkstoffprüfung 2025}, author={Lüder, Stephan and Wolf, Eugen and Brosius, Alexander and Schmale, Hans Christian}, editor={Zimmermann, Martina and Deutsche Gesellschaft für Materialkunde e.V. (DGM)}, year={2025}, pages={478–483} }","ama":"Lüder S, Wolf E, Brosius A, Schmale HC. Modifizierter Torsionsversuch zur Untersuchung des Tragverhaltens von Clinchpunktmehrfachanordnungen. In: Zimmermann M, Deutsche Gesellschaft für Materialkunde e.V. (DGM), eds. 43. Vortrags- und Diskussionstagung Werkstoffprüfung 2025. ; 2025:478-483."},"project":[{"name":"TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten","_id":"130"},{"_id":"131","name":"TRR 285 - Project Area A"},{"_id":"138","name":"TRR 285 - Subproject A04"},{"_id":"132","name":"TRR 285 - Project Area B"},{"name":"TRR 285 - Subproject B01","_id":"140"}],"quality_controlled":"1","place":"Sankt Augustin","conference":{"location":"Dresden","name":"43. Vortrags- und Diskussionstagung \"Werkstoffprüfung 2025\": Werkstoffe und Bauteile auf dem Prüfstand","start_date":"2025-11-27","end_date":"2025-11-28"},"status":"public","_id":"63020","page":"478 - 483","editor":[{"full_name":"Zimmermann, Martina","last_name":"Zimmermann","first_name":"Martina"}],"user_id":"104464"},{"language":[{"iso":"eng"}],"_id":"61174","publisher":"Materials Research Forum LLC","volume":52,"user_id":"84990","doi":"10.21741/9781644903551-22","publication_identifier":{"issn":["2474-395X"]},"author":[{"first_name":"J.","last_name":"Friedlein","full_name":"Friedlein, J."},{"full_name":"Steinmann, P.","first_name":"P.","last_name":"Steinmann"},{"full_name":"Mergheim, J.","first_name":"J.","last_name":"Mergheim"}],"title":"Influence of thermal effects on clinch joining of sheet metal","status":"public","year":"2025","intvolume":" 52","publication_status":"published","date_updated":"2025-09-10T14:37:40Z","date_created":"2025-09-10T14:33:50Z","type":"conference","citation":{"short":"J. Friedlein, P. Steinmann, J. Mergheim, in: Materials Research Proceedings, Materials Research Forum LLC, 2025.","chicago":"Friedlein, J., P. Steinmann, and J. Mergheim. “Influence of Thermal Effects on Clinch Joining of Sheet Metal.” In Materials Research Proceedings, Vol. 52. Materials Research Forum LLC, 2025. https://doi.org/10.21741/9781644903551-22.","ieee":"J. Friedlein, P. Steinmann, and J. Mergheim, “Influence of thermal effects on clinch joining of sheet metal,” in Materials Research Proceedings, 2025, vol. 52, doi: 10.21741/9781644903551-22.","apa":"Friedlein, J., Steinmann, P., & Mergheim, J. (2025). Influence of thermal effects on clinch joining of sheet metal. Materials Research Proceedings, 52. https://doi.org/10.21741/9781644903551-22","bibtex":"@inproceedings{Friedlein_Steinmann_Mergheim_2025, title={Influence of thermal effects on clinch joining of sheet metal}, volume={52}, DOI={10.21741/9781644903551-22}, booktitle={Materials Research Proceedings}, publisher={Materials Research Forum LLC}, author={Friedlein, J. and Steinmann, P. and Mergheim, J.}, year={2025} }","ama":"Friedlein J, Steinmann P, Mergheim J. Influence of thermal effects on clinch joining of sheet metal. In: Materials Research Proceedings. Vol 52. Materials Research Forum LLC; 2025. doi:10.21741/9781644903551-22","mla":"Friedlein, J., et al. “Influence of Thermal Effects on Clinch Joining of Sheet Metal.” Materials Research Proceedings, vol. 52, Materials Research Forum LLC, 2025, doi:10.21741/9781644903551-22."},"publication":"Materials Research Proceedings","project":[{"name":"TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten","_id":"130"},{"_id":"131","name":"TRR 285 - Project Area A"},{"name":"TRR 285 - Subproject A05","_id":"139"}],"abstract":[{"lang":"eng","text":"Abstract. Mechanical joining methods, such as clinching, are characterised by locally large plastic deformations of the sheet metal to be joined. The majority of the thereby inserted work is transformed into heat. The heat generation and temperature evolution are systematically studied herein by means of thermomechanical process simulations for joining the dual-phase steel HCT590X and the aluminium alloy EN-AW 6014. The thermal-induced softening of the material is incorporated by a suitable coupled thermoplastic constitutive model. It is observed how the tools significantly and importantly contribute to the heat exchange. They reduce peak temperature increases of 225 K (without heat transfer to tools) to less than 90 K for realistic behaviour of contact heat transfer. Overall, increases in temperature during clinch joining can be expected to remain below 90 K for steel-steel joints and around 50 K for aluminium-aluminium joints."}]},{"conference":{"location":"Porto","start_date":"2025-07-15","name":"8th International Conference on Integrity-Reliability-Failure (IRF2025)","end_date":"2025-07-18"},"status":"public","publisher":"FEUP","_id":"61149","editor":[{"full_name":"Gomes, J.F. Silva","first_name":"J.F. Silva","last_name":"Gomes"},{"first_name":"Shaker A.","last_name":"Meguid","full_name":"Meguid, Shaker A."}],"user_id":"114764","citation":{"chicago":"Dargel, Alrik, Benjamin Gröger, Malte Christian Schlichter, Johannes Gerritzen, Daniel Köhler, Gerson Meschut, Maik Gude, and Robert Kupfer. “Local Deformation and Failure of Composites during Self-Piercing Riveting: A CT-Based Microstructure Investigation.” In Proceedings of the 8th International Conference on Integrity-Reliability-Failure (IRF2025), edited by J.F. Silva Gomes and Shaker A. Meguid. Porto: FEUP, 2025. https://doi.org/10.24840/978-972-752-323-8.","ama":"Dargel A, Gröger B, Schlichter MC, et al. Local Deformation and Failure of Composites during Self-Piercing Riveting: A CT-Based Microstructure Investigation. In: Gomes JFS, Meguid SA, eds. Proceedings of the 8th International Conference on Integrity-Reliability-Failure (IRF2025). FEUP; 2025. doi:10.24840/978-972-752-323-8","short":"A. Dargel, B. Gröger, M.C. Schlichter, J. Gerritzen, D. Köhler, G. Meschut, M. Gude, R. Kupfer, in: J.F.S. Gomes, S.A. Meguid (Eds.), Proceedings of the 8th International Conference on Integrity-Reliability-Failure (IRF2025), FEUP, Porto, 2025.","bibtex":"@inproceedings{Dargel_Gröger_Schlichter_Gerritzen_Köhler_Meschut_Gude_Kupfer_2025, place={Porto}, title={Local Deformation and Failure of Composites during Self-Piercing Riveting: A CT-Based Microstructure Investigation}, DOI={10.24840/978-972-752-323-8}, booktitle={Proceedings of the 8th International Conference on Integrity-Reliability-Failure (IRF2025)}, publisher={FEUP}, author={Dargel, Alrik and Gröger, Benjamin and Schlichter, Malte Christian and Gerritzen, Johannes and Köhler, Daniel and Meschut, Gerson and Gude, Maik and Kupfer, Robert}, editor={Gomes, J.F. Silva and Meguid, Shaker A.}, year={2025} }","mla":"Dargel, Alrik, et al. “Local Deformation and Failure of Composites during Self-Piercing Riveting: A CT-Based Microstructure Investigation.” Proceedings of the 8th International Conference on Integrity-Reliability-Failure (IRF2025), edited by J.F. Silva Gomes and Shaker A. Meguid, FEUP, 2025, doi:10.24840/978-972-752-323-8.","apa":"Dargel, A., Gröger, B., Schlichter, M. C., Gerritzen, J., Köhler, D., Meschut, G., Gude, M., & Kupfer, R. (2025). Local Deformation and Failure of Composites during Self-Piercing Riveting: A CT-Based Microstructure Investigation. In J. F. S. Gomes & S. A. Meguid (Eds.), Proceedings of the 8th International Conference on Integrity-Reliability-Failure (IRF2025). FEUP. https://doi.org/10.24840/978-972-752-323-8","ieee":"A. Dargel et al., “Local Deformation and Failure of Composites during Self-Piercing Riveting: A CT-Based Microstructure Investigation,” in Proceedings of the 8th International Conference on Integrity-Reliability-Failure (IRF2025), Porto, 2025, doi: 10.24840/978-972-752-323-8."},"project":[{"name":"TRR 285 - Project Area C","_id":"133"},{"_id":"148","name":"TRR 285 - Subproject C04"},{"_id":"130","name":"TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten"},{"_id":"131","name":"TRR 285 - Project Area A"},{"_id":"137","name":"TRR 285 - Subproject A03"},{"name":"TRR 285 - Subproject A01","_id":"135"}],"place":"Porto","oa":"1","publication_identifier":{"isbn":["9789727523238"]},"author":[{"last_name":"Dargel","first_name":"Alrik","full_name":"Dargel, Alrik","id":"114764"},{"full_name":"Gröger, Benjamin","first_name":"Benjamin","last_name":"Gröger"},{"last_name":"Schlichter","first_name":"Malte Christian","full_name":"Schlichter, Malte Christian","id":"61977"},{"orcid":"0000-0002-0169-8602","first_name":"Johannes","last_name":"Gerritzen","full_name":"Gerritzen, Johannes","id":"105344"},{"full_name":"Köhler, Daniel","first_name":"Daniel","last_name":"Köhler","id":"83408"},{"full_name":"Meschut, Gerson","first_name":"Gerson","orcid":"0000-0002-2763-1246","last_name":"Meschut","id":"32056"},{"last_name":"Gude","first_name":"Maik","full_name":"Gude, Maik"},{"full_name":"Kupfer, Robert","last_name":"Kupfer","first_name":"Robert"}],"title":"Local Deformation and Failure of Composites during Self-Piercing Riveting: A CT-Based Microstructure Investigation","year":"2025","publication_status":"published","date_updated":"2026-05-07T08:40:51Z","language":[{"iso":"eng"}],"main_file_link":[{"open_access":"1","url":"https://www.researchgate.net/publication/395593556_LOCAL_DEFORMATION_AND_FAILURE_OF_COMPOSITES_DURING_SELF-PIERCING_RIVETING_A_CT_BASED_MICROSTRUCTURE_INVESTIGATION"}],"doi":"10.24840/978-972-752-323-8","publication":"Proceedings of the 8th International Conference on Integrity-Reliability-Failure (IRF2025)","abstract":[{"text":"The use of continuous fiber-reinforced thermoplastics (FRTP) in automotive industry increases due to their excellent material properties and possibility of rapid processing. The scale spanning heterogeneity of their material structure and its influence on the material behavior, however, presents significant challenges for most joining technologies, such as self-piercing riveting (SPR). During mechanical joining, the material structure is significantly altered within and around the joining zone, heavily influencing the material behavior. A comprehensive understanding of the underlying phenomena of material alteration during the SPR process is essential as basis for validating numerical simulations. This study examines the material structure at ten stages of a step-setting test of SPR with two FRTP sheets with glass-fiber reinforcement. Utilizing X-ray computed tomography (CT), the damage phenomena within different areas of the setting test are analyzed three-dimensionally and key parameters are quantified. Dominating phenomena during the penetration of the rivet into the laminate are fiber failure (FF), interfiber failure (IFF) and fiber bending, while delamination, fiber kinking and roving splitting are also observed. At the final stages, the bottom layers of the second sheet collapse and form a bulge into the cavity of the die.","lang":"eng"}],"date_created":"2025-09-08T11:52:45Z","type":"conference","keyword":["self-piercing riveting","computed tomography","thermoplastic composites","process-structure-interaction"]}]