[{"date_updated":"2024-10-18T08:16:58Z","publication_status":"published","status":"public","title":"Approach for the Reliable and Virtual Design of Mechanical Joints in an Uncertain Environment","year":"2024","author":[{"full_name":"Einwag, Jonathan-Markus","first_name":"Jonathan-Markus","last_name":"Einwag"},{"full_name":"Goetz, Stefan","last_name":"Goetz","first_name":"Stefan"},{"first_name":"Sandro","last_name":"Wartzack","full_name":"Wartzack, Sandro"}],"doi":"10.35199/dfx2024.23","user_id":"107109","_id":"56682","publisher":"The Design Society","language":[{"iso":"eng"}],"project":[{"_id":"130","grant_number":"418701707","name":"TRR 285: TRR 285"},{"_id":"132","name":"TRR 285 - B: TRR 285 - Project Area B"},{"_id":"144","name":"TRR 285 – B05: TRR 285 - Subproject B05"}],"publication":"DS 133: Proceedings of the 35th Symposium Design for X (DFX2024)","citation":{"short":"J.-M. Einwag, S. Goetz, S. Wartzack, in: DS 133: Proceedings of the 35th Symposium Design for X (DFX2024), The Design Society, 2024.","chicago":"Einwag, Jonathan-Markus, Stefan Goetz, and Sandro Wartzack. “Approach for the Reliable and Virtual Design of Mechanical Joints in an Uncertain Environment.” In <i>DS 133: Proceedings of the 35th Symposium Design for X (DFX2024)</i>. The Design Society, 2024. <a href=\"https://doi.org/10.35199/dfx2024.23\">https://doi.org/10.35199/dfx2024.23</a>.","apa":"Einwag, J.-M., Goetz, S., &#38; Wartzack, S. (2024). Approach for the Reliable and Virtual Design of Mechanical Joints in an Uncertain Environment. <i>DS 133: Proceedings of the 35th Symposium Design for X (DFX2024)</i>. <a href=\"https://doi.org/10.35199/dfx2024.23\">https://doi.org/10.35199/dfx2024.23</a>","ieee":"J.-M. Einwag, S. Goetz, and S. Wartzack, “Approach for the Reliable and Virtual Design of Mechanical Joints in an Uncertain Environment,” 2024, doi: <a href=\"https://doi.org/10.35199/dfx2024.23\">10.35199/dfx2024.23</a>.","ama":"Einwag J-M, Goetz S, Wartzack S. Approach for the Reliable and Virtual Design of Mechanical Joints in an Uncertain Environment. In: <i>DS 133: Proceedings of the 35th Symposium Design for X (DFX2024)</i>. The Design Society; 2024. doi:<a href=\"https://doi.org/10.35199/dfx2024.23\">10.35199/dfx2024.23</a>","bibtex":"@inproceedings{Einwag_Goetz_Wartzack_2024, title={Approach for the Reliable and Virtual Design of Mechanical Joints in an Uncertain Environment}, DOI={<a href=\"https://doi.org/10.35199/dfx2024.23\">10.35199/dfx2024.23</a>}, booktitle={DS 133: Proceedings of the 35th Symposium Design for X (DFX2024)}, publisher={The Design Society}, author={Einwag, Jonathan-Markus and Goetz, Stefan and Wartzack, Sandro}, year={2024} }","mla":"Einwag, Jonathan-Markus, et al. “Approach for the Reliable and Virtual Design of Mechanical Joints in an Uncertain Environment.” <i>DS 133: Proceedings of the 35th Symposium Design for X (DFX2024)</i>, The Design Society, 2024, doi:<a href=\"https://doi.org/10.35199/dfx2024.23\">10.35199/dfx2024.23</a>."},"type":"conference","department":[{"_id":"43"},{"_id":"157"}],"date_created":"2024-10-18T07:59:48Z"},{"date_updated":"2025-01-31T17:03:34Z","publication_status":"published","intvolume":"         8","title":"Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining","year":"2024","publication_identifier":{"issn":["2504-4494"]},"author":[{"full_name":"Friedlein, Johannes","first_name":"Johannes","last_name":"Friedlein"},{"first_name":"Max","last_name":"Böhnke","full_name":"Böhnke, Max"},{"full_name":"Schlichter, Malte","first_name":"Malte","last_name":"Schlichter"},{"full_name":"Bobbert, Mathias","first_name":"Mathias","last_name":"Bobbert"},{"full_name":"Meschut, Gerson","last_name":"Meschut","first_name":"Gerson"},{"full_name":"Mergheim, Julia","last_name":"Mergheim","first_name":"Julia"},{"last_name":"Steinmann","first_name":"Paul","full_name":"Steinmann, Paul"}],"doi":"10.3390/jmmp8040157","article_number":"157","language":[{"iso":"eng"}],"abstract":[{"text":"<jats:p>Similar to bulk metal forming, clinch joining is characterised by large plastic deformations and a variety of different 3D stress states, including severe compression. However, inherent to plastic forming is the nucleation and growth of defects, whose detrimental effects on the material behaviour can be described by continuum damage models and eventually lead to material failure. As the damage evolution strongly depends on the stress state, a stress-state-dependent model is utilised to correctly track the accumulation. To formulate and parameterise this model, besides classical experiments, so-called modified punch tests are also integrated herein to enhance the calibration of the failure model by capturing a larger range of stress states and metal-forming-specific loading conditions. Moreover, when highly ductile materials are considered, such as the dual-phase steel HCT590X and the aluminium alloy EN AW-6014 T4 investigated here, strong necking and localisation might occur prior to fracture. This can alter the stress state and affect the actual strain at failure. This influence is captured by coupling plasticity and damage to incorporate the damage-induced softening effect. Its relative importance is shown by conducting inverse parameter identifications to determine damage and failure parameters for both mentioned ductile metals based on up to 12 different experiments.</jats:p>","lang":"eng"}],"issue":"4","publication":"Journal of Manufacturing and Materials Processing","keyword":["ductile damage","stress-state dependency","failure","parameter identification","punch test","clinching"],"type":"journal_article","date_created":"2025-01-31T16:59:13Z","status":"public","user_id":"84990","volume":8,"publisher":"MDPI AG","_id":"58491","project":[{"name":"TRR 285: TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten","_id":"130","grant_number":"418701707"},{"name":"TRR 285 - A: TRR 285 - Project Area A","_id":"131"},{"_id":"139","name":"TRR 285 – A05: TRR 285 - Subproject A05"}],"citation":{"chicago":"Friedlein, Johannes, Max Böhnke, Malte Schlichter, Mathias Bobbert, Gerson Meschut, Julia Mergheim, and Paul Steinmann. “Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining.” <i>Journal of Manufacturing and Materials Processing</i> 8, no. 4 (2024). <a href=\"https://doi.org/10.3390/jmmp8040157\">https://doi.org/10.3390/jmmp8040157</a>.","short":"J. Friedlein, M. Böhnke, M. Schlichter, M. Bobbert, G. Meschut, J. Mergheim, P. Steinmann, Journal of Manufacturing and Materials Processing 8 (2024).","apa":"Friedlein, J., Böhnke, M., Schlichter, M., Bobbert, M., Meschut, G., Mergheim, J., &#38; Steinmann, P. (2024). Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining. <i>Journal of Manufacturing and Materials Processing</i>, <i>8</i>(4), Article 157. <a href=\"https://doi.org/10.3390/jmmp8040157\">https://doi.org/10.3390/jmmp8040157</a>","ieee":"J. Friedlein <i>et al.</i>, “Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining,” <i>Journal of Manufacturing and Materials Processing</i>, vol. 8, no. 4, Art. no. 157, 2024, doi: <a href=\"https://doi.org/10.3390/jmmp8040157\">10.3390/jmmp8040157</a>.","ama":"Friedlein J, Böhnke M, Schlichter M, et al. Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining. <i>Journal of Manufacturing and Materials Processing</i>. 2024;8(4). doi:<a href=\"https://doi.org/10.3390/jmmp8040157\">10.3390/jmmp8040157</a>","bibtex":"@article{Friedlein_Böhnke_Schlichter_Bobbert_Meschut_Mergheim_Steinmann_2024, title={Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining}, volume={8}, DOI={<a href=\"https://doi.org/10.3390/jmmp8040157\">10.3390/jmmp8040157</a>}, number={4157}, journal={Journal of Manufacturing and Materials Processing}, publisher={MDPI AG}, author={Friedlein, Johannes and Böhnke, Max and Schlichter, Malte and Bobbert, Mathias and Meschut, Gerson and Mergheim, Julia and Steinmann, Paul}, year={2024} }","mla":"Friedlein, Johannes, et al. “Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining.” <i>Journal of Manufacturing and Materials Processing</i>, vol. 8, no. 4, 157, MDPI AG, 2024, doi:<a href=\"https://doi.org/10.3390/jmmp8040157\">10.3390/jmmp8040157</a>."}},{"publication_status":"published","date_updated":"2025-06-02T20:18:31Z","author":[{"last_name":"Reschke","first_name":"G","full_name":"Reschke, G"},{"last_name":"Köhler","first_name":"D","full_name":"Köhler, D"},{"first_name":"R","last_name":"Kupfer","full_name":"Kupfer, R"},{"first_name":"J","last_name":"Troschitz","full_name":"Troschitz, J"},{"first_name":"M","last_name":"Gude","full_name":"Gude, M"},{"first_name":"A","last_name":"Brosius","full_name":"Brosius, A"}],"publication_identifier":{"issn":["0954-4089","2041-3009"]},"year":"2024","title":"In-situ computed tomography and transient dynamic analysis – failure analysis of a single-lap tensile-shear test with clinch points","status":"public","user_id":"83408","doi":"10.1177/09544089241251646","publisher":"SAGE Publications","_id":"60106","language":[{"iso":"eng"}],"project":[{"_id":"130","grant_number":"418701707","name":"TRR 285: TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten"},{"name":"TRR 285 - C: TRR 285 - Project Area C","_id":"133"},{"name":"TRR 285 – C04: TRR 285 - Subproject C04","_id":"148"}],"abstract":[{"lang":"eng","text":"<jats:p> Clinching is a mechanical joining technology, in which a mainly form-fit joint is created by means of local cold forming. To characterize the load-bearing behavior of such joints, they are typically analyzed destructively, for example by tensile-shear tests in combination with metallographic sections. However, both the initiation and progress of failure can only be described to a limited extent by this method. Furthermore, these tests allow only limited conclusions about clinch points under in-service loading. More purposefully, clinch points can be analyzed nondestructively by combining in-situ computed tomography (CT) and transient dynamic analysis (TDA). The TDA continuously measures the dynamic behavior of the specimen and indicates failure events like crack initiation, which then can be evaluated thoroughly by stopping the test and performing a CT scan. To qualify the TDA for this task, it is necessary to link the observed damage behavior with specific dynamic characteristics. In this work, the complementation of in-situ CT and TDA is investigated by testing a clinched single-lap tensile-shear specimen made of aluminum. The testing procedure is stepwise: at certain displacement levels, the specimen is investigated by in-situ CT and TDA. While the in-situ CT provides the location, extent, and development of the failure phenomena, the TDA uses this information to evaluate the dynamic signal and detect relevant frequency ranges, which indicate damage events. The results demonstrate, that failure initiation and progression can be analyzed efficiently by combining both measuring systems. The TDA reliably detects relevant signal changes in the monitored frequency band. By means of in-situ computed tomography, the corresponding failure phenomena can be described in detail, enhancing the understanding of the load-bearing and deformation behavior of clinch points. The concatenation of characteristic signal changes and observed failure phenomena can henceforth be transferred to analyze complex structures during operation nondestructively by TDA. </jats:p>"}],"citation":{"bibtex":"@article{Reschke_Köhler_Kupfer_Troschitz_Gude_Brosius_2024, title={In-situ computed tomography and transient dynamic analysis – failure analysis of a single-lap tensile-shear test with clinch points}, DOI={<a href=\"https://doi.org/10.1177/09544089241251646\">10.1177/09544089241251646</a>}, journal={Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering}, publisher={SAGE Publications}, author={Reschke, G and Köhler, D and Kupfer, R and Troschitz, J and Gude, M and Brosius, A}, year={2024} }","ama":"Reschke G, Köhler D, Kupfer R, Troschitz J, Gude M, Brosius A. In-situ computed tomography and transient dynamic analysis – failure analysis of a single-lap tensile-shear test with clinch points. <i>Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering</i>. Published online 2024. doi:<a href=\"https://doi.org/10.1177/09544089241251646\">10.1177/09544089241251646</a>","mla":"Reschke, G., et al. “In-Situ Computed Tomography and Transient Dynamic Analysis – Failure Analysis of a Single-Lap Tensile-Shear Test with Clinch Points.” <i>Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering</i>, SAGE Publications, 2024, doi:<a href=\"https://doi.org/10.1177/09544089241251646\">10.1177/09544089241251646</a>.","short":"G. Reschke, D. Köhler, R. Kupfer, J. Troschitz, M. Gude, A. Brosius, Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering (2024).","chicago":"Reschke, G, D Köhler, R Kupfer, J Troschitz, M Gude, and A Brosius. “In-Situ Computed Tomography and Transient Dynamic Analysis – Failure Analysis of a Single-Lap Tensile-Shear Test with Clinch Points.” <i>Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering</i>, 2024. <a href=\"https://doi.org/10.1177/09544089241251646\">https://doi.org/10.1177/09544089241251646</a>.","ieee":"G. Reschke, D. Köhler, R. Kupfer, J. Troschitz, M. Gude, and A. Brosius, “In-situ computed tomography and transient dynamic analysis – failure analysis of a single-lap tensile-shear test with clinch points,” <i>Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering</i>, 2024, doi: <a href=\"https://doi.org/10.1177/09544089241251646\">10.1177/09544089241251646</a>.","apa":"Reschke, G., Köhler, D., Kupfer, R., Troschitz, J., Gude, M., &#38; Brosius, A. (2024). In-situ computed tomography and transient dynamic analysis – failure analysis of a single-lap tensile-shear test with clinch points. <i>Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering</i>. <a href=\"https://doi.org/10.1177/09544089241251646\">https://doi.org/10.1177/09544089241251646</a>"},"publication":"Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering","department":[{"_id":"157"},{"_id":"43"}],"type":"journal_article","date_created":"2025-06-02T20:03:39Z"},{"issue":"12","publication":"Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications","abstract":[{"text":"<jats:p> Lightweight design by using low-density and load-adapted materials can reduce the weight of vehicles and the emissions generated during operation. However, the usage of different materials requires innovative joining technologies with increased versatility. In this investigation, the focus is on describing and characterising the failure behaviour of connections manufactured by an innovative thermomechanical joining process with adaptable auxiliary joining elements in single-lap tensile-shear tests. In order to analyse the failure development in detail, the specimens are investigated using in-situ computed tomography (in-situ CT). Here, the tensile-shear test is interrupted at points of interest and CT scans are conducted under load. In addition, the interrupted in-situ testing procedure is validated by comparing the loading behaviour with conventional continuous tensile-shear tests. The results of the in-situ investigations of joints with varying material combinations clearly describe the cause of failure, allowing conclusions towards an improved joint design. </jats:p>","lang":"eng"}],"date_created":"2025-06-02T20:01:39Z","type":"journal_article","department":[{"_id":"157"},{"_id":"43"}],"year":"2024","title":"In-situ computed tomography analysis of the failure mechanisms of thermomechanically manufactured joints with auxiliary joining element","publication_identifier":{"issn":["1464-4207","2041-3076"]},"author":[{"last_name":"Borgert","first_name":"T","full_name":"Borgert, T"},{"last_name":"Köhler","first_name":"D","full_name":"Köhler, D"},{"first_name":"E.","last_name":"Wiens","full_name":"Wiens, E."},{"last_name":"Kupfer","first_name":"R","full_name":"Kupfer, R"},{"full_name":"Troschitz, J","last_name":"Troschitz","first_name":"J"},{"full_name":"Homberg, W","first_name":"W","last_name":"Homberg"},{"last_name":"Gude","first_name":"M","full_name":"Gude, M"}],"publication_status":"published","date_updated":"2025-06-02T20:18:42Z","intvolume":"       238","language":[{"iso":"eng"}],"doi":"10.1177/14644207241232233","citation":{"bibtex":"@article{Borgert_Köhler_Wiens_Kupfer_Troschitz_Homberg_Gude_2024, title={In-situ computed tomography analysis of the failure mechanisms of thermomechanically manufactured joints with auxiliary joining element}, volume={238}, DOI={<a href=\"https://doi.org/10.1177/14644207241232233\">10.1177/14644207241232233</a>}, number={12}, journal={Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications}, publisher={SAGE Publications}, author={Borgert, T and Köhler, D and Wiens, E. and Kupfer, R and Troschitz, J and Homberg, W and Gude, M}, year={2024}, pages={2299–2306} }","ama":"Borgert T, Köhler D, Wiens E, et al. In-situ computed tomography analysis of the failure mechanisms of thermomechanically manufactured joints with auxiliary joining element. <i>Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications</i>. 2024;238(12):2299-2306. doi:<a href=\"https://doi.org/10.1177/14644207241232233\">10.1177/14644207241232233</a>","mla":"Borgert, T., et al. “In-Situ Computed Tomography Analysis of the Failure Mechanisms of Thermomechanically Manufactured Joints with Auxiliary Joining Element.” <i>Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications</i>, vol. 238, no. 12, SAGE Publications, 2024, pp. 2299–306, doi:<a href=\"https://doi.org/10.1177/14644207241232233\">10.1177/14644207241232233</a>.","short":"T. Borgert, D. Köhler, E. Wiens, R. Kupfer, J. Troschitz, W. Homberg, M. Gude, Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications 238 (2024) 2299–2306.","chicago":"Borgert, T, D Köhler, E. Wiens, R Kupfer, J Troschitz, W Homberg, and M Gude. “In-Situ Computed Tomography Analysis of the Failure Mechanisms of Thermomechanically Manufactured Joints with Auxiliary Joining Element.” <i>Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications</i> 238, no. 12 (2024): 2299–2306. <a href=\"https://doi.org/10.1177/14644207241232233\">https://doi.org/10.1177/14644207241232233</a>.","ieee":"T. Borgert <i>et al.</i>, “In-situ computed tomography analysis of the failure mechanisms of thermomechanically manufactured joints with auxiliary joining element,” <i>Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications</i>, vol. 238, no. 12, pp. 2299–2306, 2024, doi: <a href=\"https://doi.org/10.1177/14644207241232233\">10.1177/14644207241232233</a>.","apa":"Borgert, T., Köhler, D., Wiens, E., Kupfer, R., Troschitz, J., Homberg, W., &#38; Gude, M. (2024). In-situ computed tomography analysis of the failure mechanisms of thermomechanically manufactured joints with auxiliary joining element. <i>Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications</i>, <i>238</i>(12), 2299–2306. <a href=\"https://doi.org/10.1177/14644207241232233\">https://doi.org/10.1177/14644207241232233</a>"},"project":[{"name":"TRR 285: TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten","grant_number":"418701707","_id":"130"},{"_id":"133","name":"TRR 285 - C: TRR 285 - Project Area C"},{"_id":"148","name":"TRR 285 – C04: TRR 285 - Subproject C04"},{"name":"TRR 285 – C03: TRR 285 - Subproject C03","_id":"147"}],"status":"public","has_accepted_license":"1","page":"2299-2306","publisher":"SAGE Publications","_id":"60105","user_id":"83408","ddc":["620"],"volume":238},{"publication_status":"published","date_updated":"2025-06-02T20:18:11Z","intvolume":"        41","title":"In-situ CT of the clinching process – Influence of settling effects due to process interruptions","year":"2024","author":[{"last_name":"Köhler","first_name":"D.","full_name":"Köhler, D."},{"first_name":"R.","last_name":"Kupfer","full_name":"Kupfer, R."},{"full_name":"Troschitz, J.","last_name":"Troschitz","first_name":"J."},{"full_name":"Gude, M.","first_name":"M.","last_name":"Gude"}],"publication_identifier":{"issn":["2474-395X"]},"doi":"10.21741/9781644903131-187","language":[{"iso":"eng"}],"abstract":[{"text":"<jats:p>Abstract. In lightweight constructions, clinching represents a cost-effective solution, in which joints are produced by local cold forming of the joining parts. Clinching phenomena are typically evaluated using destructive testing methods. While these methods influence the clinch point’s state, in-situ computed tomography (in-situ CT) is able to explore the clinching process with a specimen under load. Here, the path-controlled clinching process is interrupted at certain displacement levels and the specimen is scanned by CT while remaining in a stationary state. These interruptions are always accompanied by settling effects reducing the reaction force. Therefore, in this work, the influence of these interruptions on the force-displacement behavior during clinching and on the final clinch point’s geometric properties is investigated. </jats:p>","lang":"eng"}],"publication":"Materials Research Proceedings","type":"conference","department":[{"_id":"157"},{"_id":"43"}],"date_created":"2025-06-02T20:04:17Z","status":"public","user_id":"83408","volume":41,"publisher":"Materials Research Forum LLC","_id":"60107","project":[{"name":"TRR 285: TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten","_id":"130","grant_number":"418701707"},{"_id":"133","name":"TRR 285 - C: TRR 285 - Project Area C"},{"name":"TRR 285 – C04: TRR 285 - Subproject C04","_id":"148"}],"citation":{"ama":"Köhler D, Kupfer R, Troschitz J, Gude M. In-situ CT of the clinching process – Influence of settling effects due to process interruptions. In: <i>Materials Research Proceedings</i>. Vol 41. Materials Research Forum LLC; 2024. doi:<a href=\"https://doi.org/10.21741/9781644903131-187\">10.21741/9781644903131-187</a>","bibtex":"@inproceedings{Köhler_Kupfer_Troschitz_Gude_2024, title={In-situ CT of the clinching process – Influence of settling effects due to process interruptions}, volume={41}, DOI={<a href=\"https://doi.org/10.21741/9781644903131-187\">10.21741/9781644903131-187</a>}, booktitle={Materials Research Proceedings}, publisher={Materials Research Forum LLC}, author={Köhler, D. and Kupfer, R. and Troschitz, J. and Gude, M.}, year={2024} }","mla":"Köhler, D., et al. “In-Situ CT of the Clinching Process – Influence of Settling Effects Due to Process Interruptions.” <i>Materials Research Proceedings</i>, vol. 41, Materials Research Forum LLC, 2024, doi:<a href=\"https://doi.org/10.21741/9781644903131-187\">10.21741/9781644903131-187</a>.","short":"D. Köhler, R. Kupfer, J. Troschitz, M. Gude, in: Materials Research Proceedings, Materials Research Forum LLC, 2024.","chicago":"Köhler, D., R. Kupfer, J. Troschitz, and M. Gude. “In-Situ CT of the Clinching Process – Influence of Settling Effects Due to Process Interruptions.” In <i>Materials Research Proceedings</i>, Vol. 41. Materials Research Forum LLC, 2024. <a href=\"https://doi.org/10.21741/9781644903131-187\">https://doi.org/10.21741/9781644903131-187</a>.","apa":"Köhler, D., Kupfer, R., Troschitz, J., &#38; Gude, M. (2024). In-situ CT of the clinching process – Influence of settling effects due to process interruptions. <i>Materials Research Proceedings</i>, <i>41</i>. <a href=\"https://doi.org/10.21741/9781644903131-187\">https://doi.org/10.21741/9781644903131-187</a>","ieee":"D. Köhler, R. Kupfer, J. Troschitz, and M. Gude, “In-situ CT of the clinching process – Influence of settling effects due to process interruptions,” in <i>Materials Research Proceedings</i>, 2024, vol. 41, doi: <a href=\"https://doi.org/10.21741/9781644903131-187\">10.21741/9781644903131-187</a>."}},{"publisher":"Wiley","_id":"61412","volume":24,"user_id":"114741","status":"public","citation":{"mla":"Harzheim, Sven, et al. “Coupled Chemo‐electro‐mechanical Model for Galvanic Corrosion in Clinched Components.” <i>PAMM</i>, vol. 24, no. 4, e202400028, Wiley, 2024, doi:<a href=\"https://doi.org/10.1002/pamm.202400028\">10.1002/pamm.202400028</a>.","bibtex":"@article{Harzheim_Chen_Hofmann_Wallmersperger_2024, title={Coupled chemo‐electro‐mechanical model for galvanic corrosion in clinched components}, volume={24}, DOI={<a href=\"https://doi.org/10.1002/pamm.202400028\">10.1002/pamm.202400028</a>}, number={4e202400028}, journal={PAMM}, publisher={Wiley}, author={Harzheim, Sven and Chen, Chin and Hofmann, Martin and Wallmersperger, Thomas}, year={2024} }","ama":"Harzheim S, Chen C, Hofmann M, Wallmersperger T. Coupled chemo‐electro‐mechanical model for galvanic corrosion in clinched components. <i>PAMM</i>. 2024;24(4). doi:<a href=\"https://doi.org/10.1002/pamm.202400028\">10.1002/pamm.202400028</a>","ieee":"S. Harzheim, C. Chen, M. Hofmann, and T. Wallmersperger, “Coupled chemo‐electro‐mechanical model for galvanic corrosion in clinched components,” <i>PAMM</i>, vol. 24, no. 4, Art. no. e202400028, 2024, doi: <a href=\"https://doi.org/10.1002/pamm.202400028\">10.1002/pamm.202400028</a>.","apa":"Harzheim, S., Chen, C., Hofmann, M., &#38; Wallmersperger, T. (2024). Coupled chemo‐electro‐mechanical model for galvanic corrosion in clinched components. <i>PAMM</i>, <i>24</i>(4), Article e202400028. <a href=\"https://doi.org/10.1002/pamm.202400028\">https://doi.org/10.1002/pamm.202400028</a>","short":"S. Harzheim, C. Chen, M. Hofmann, T. Wallmersperger, PAMM 24 (2024).","chicago":"Harzheim, Sven, Chin Chen, Martin Hofmann, and Thomas Wallmersperger. “Coupled Chemo‐electro‐mechanical Model for Galvanic Corrosion in Clinched Components.” <i>PAMM</i> 24, no. 4 (2024). <a href=\"https://doi.org/10.1002/pamm.202400028\">https://doi.org/10.1002/pamm.202400028</a>."},"project":[{"_id":"132","name":"TRR 285 - Project Area B"},{"name":"TRR 285 - Subproject B03","_id":"142"},{"name":"TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten","_id":"130"}],"language":[{"iso":"eng"}],"article_number":"e202400028","doi":"10.1002/pamm.202400028","author":[{"last_name":"Harzheim","first_name":"Sven","full_name":"Harzheim, Sven"},{"first_name":"Chin","last_name":"Chen","full_name":"Chen, Chin","id":"114741"},{"full_name":"Hofmann, Martin","last_name":"Hofmann","first_name":"Martin"},{"full_name":"Wallmersperger, Thomas","first_name":"Thomas","last_name":"Wallmersperger"}],"publication_identifier":{"issn":["1617-7061","1617-7061"]},"title":"Coupled chemo‐electro‐mechanical model for galvanic corrosion in clinched components","year":"2024","intvolume":"        24","publication_status":"published","date_updated":"2026-02-24T15:12:47Z","date_created":"2025-09-23T11:58:43Z","type":"journal_article","issue":"4","publication":"PAMM","abstract":[{"lang":"eng","text":"<jats:title>Abstract</jats:title><jats:p>Mechanical clinching is a frequently used joining method for technical components. These joints are usually weak spots. Here, corrosion and fatigue are decisive influencing factors for the assessment of the service life of such joints. Corrosion generally leads to material deterioration and thus to premature failure of the joints. Under certain circumstances, however, corrosion can lead to an increased fatigue life. While this effect has not yet been fully understood, the present work provides a possible explanation and a modeling approach to predict the fatigue life of precorroded clinched joints. The increased fatigue life is observed when the clinched components are briefly (up to 3 weeks) exposed to a salt spray environment. During this time, a small layer of corrosion products protrudes from the metal surface and fills the gaps between the joined sheets. Due to the increased contact area, the mechanical stress in the joint decreases, resulting in an improved fatigue performance. Although there are a variety of corrosion phenomena, for example, pitting, intergranular, and transgranular corrosion as well as galvanic corrosion, experimental studies indicate that galvanic corrosion is the main contributor of this effect. In the present work, a coupled electro‐chemo‐mechanical corrosion model is presented and applied to two test cases. Case I: corrosion products growth, and Case II: corrosion products growth and mechanical loading.</jats:p>"}]},{"language":[{"iso":"eng"}],"doi":"10.1177/14644207241280035","year":"2024","title":"Developing a numerical modelling strategy for metallic pin pressing processes in fibre reinforced thermoplastics to investigate fibre rearrangement mechanisms during joining","author":[{"full_name":"Gröger, B.","last_name":"Gröger","first_name":"B."},{"id":"105344","full_name":"Gerritzen, Johannes","orcid":"0000-0002-0169-8602","first_name":"Johannes","last_name":"Gerritzen"},{"full_name":"Hornig, A.","first_name":"A.","last_name":"Hornig"},{"first_name":"M.","last_name":"Gude","full_name":"Gude, M."}],"publication_identifier":{"issn":["1464-4207","2041-3076"]},"publication_status":"published","date_updated":"2026-02-27T06:45:59Z","intvolume":"       238","date_created":"2025-11-04T12:34:11Z","type":"journal_article","publication":"Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications","issue":"12","abstract":[{"text":"<jats:p> A numerical modelling strategy for the direct pin pressing process of metallic pins into continuous fibre-reinforced thermoplastic organosheets is developed. The joining process is performed above the thermoplast’s melting temperature, altering the initial material structure of the composite by fibre rearrangement, which in turn influences the load-bearing capacity of the joint. Therefore, the modelling strategy aims at predicting the resultant material structure after pin pressing. The modelling approach considers both the textile architecture and the process parameters (temperature, tool velocity). A sub-meso modelling framework for the fibres based on a multi-filament approach is used. The interaction between fibres and the thermoplastic melt, as well as the matrix flow, is modelled using the Arbitrary Lagrangian Eulerian method. This allows for the prediction of matrix-rich zones and fibre rearrangement around the pin. The promising results show a good agreement of the resultant material structure in terms of compaction and fibre volume content around the pressed pin. Characteristic parameters show an underestimation of the laminate thickness below the pin. Moreover, an evaluation method for evaluating the orientation changes of the virtual multi-filaments is developed and presented to observe and assess fibre rearrangement and fibre volume content in detail during the numerical process simulation. It can be seen that only fibres around the pin are displaced and not in the whole molten area. Furthermore, it can be observed in detail that the initial position of the fibres in relation to the pin determines whether the fibres are displaced in the in-plane or out-of-plane direction. </jats:p>","lang":"eng"}],"page":"2286-2298","_id":"62073","publisher":"SAGE Publications","user_id":"105344","volume":238,"status":"public","citation":{"ieee":"B. Gröger, J. Gerritzen, A. Hornig, and M. Gude, “Developing a numerical modelling strategy for metallic pin pressing processes in fibre reinforced thermoplastics to investigate fibre rearrangement mechanisms during joining,” <i>Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications</i>, vol. 238, no. 12, pp. 2286–2298, 2024, doi: <a href=\"https://doi.org/10.1177/14644207241280035\">10.1177/14644207241280035</a>.","apa":"Gröger, B., Gerritzen, J., Hornig, A., &#38; Gude, M. (2024). Developing a numerical modelling strategy for metallic pin pressing processes in fibre reinforced thermoplastics to investigate fibre rearrangement mechanisms during joining. <i>Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications</i>, <i>238</i>(12), 2286–2298. <a href=\"https://doi.org/10.1177/14644207241280035\">https://doi.org/10.1177/14644207241280035</a>","short":"B. Gröger, J. Gerritzen, A. Hornig, M. Gude, Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications 238 (2024) 2286–2298.","chicago":"Gröger, B., Johannes Gerritzen, A. Hornig, and M. Gude. “Developing a Numerical Modelling Strategy for Metallic Pin Pressing Processes in Fibre Reinforced Thermoplastics to Investigate Fibre Rearrangement Mechanisms during Joining.” <i>Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications</i> 238, no. 12 (2024): 2286–98. <a href=\"https://doi.org/10.1177/14644207241280035\">https://doi.org/10.1177/14644207241280035</a>.","mla":"Gröger, B., et al. “Developing a Numerical Modelling Strategy for Metallic Pin Pressing Processes in Fibre Reinforced Thermoplastics to Investigate Fibre Rearrangement Mechanisms during Joining.” <i>Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications</i>, vol. 238, no. 12, SAGE Publications, 2024, pp. 2286–98, doi:<a href=\"https://doi.org/10.1177/14644207241280035\">10.1177/14644207241280035</a>.","bibtex":"@article{Gröger_Gerritzen_Hornig_Gude_2024, title={Developing a numerical modelling strategy for metallic pin pressing processes in fibre reinforced thermoplastics to investigate fibre rearrangement mechanisms during joining}, volume={238}, DOI={<a href=\"https://doi.org/10.1177/14644207241280035\">10.1177/14644207241280035</a>}, number={12}, journal={Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications}, publisher={SAGE Publications}, author={Gröger, B. and Gerritzen, Johannes and Hornig, A. and Gude, M.}, year={2024}, pages={2286–2298} }","ama":"Gröger B, Gerritzen J, Hornig A, Gude M. Developing a numerical modelling strategy for metallic pin pressing processes in fibre reinforced thermoplastics to investigate fibre rearrangement mechanisms during joining. <i>Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications</i>. 2024;238(12):2286-2298. doi:<a href=\"https://doi.org/10.1177/14644207241280035\">10.1177/14644207241280035</a>"},"project":[{"_id":"130","name":"TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten"},{"name":"TRR 285 - Subproject A03","_id":"137"},{"name":"TRR 285 - Project Area A","_id":"131"}]},{"volume":3,"user_id":"105344","_id":"62078","publisher":"European Society for Composite Materials (ESCM)","page":"1252–1259","status":"public","project":[{"name":"TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten","_id":"130"},{"_id":"137","name":"TRR 285 - Subproject A03"},{"name":"TRR 285 - Project Area A","_id":"131"}],"citation":{"apa":"Gerritzen, J., Hornig, A., Winkler, P., &#38; Gude, M. (2024). Direct parameter identification for highly nonlinear strain rate dependent constitutive models using machine learning. <i>ECCM21 - Proceedings of the 21st European Conference on Composite Materials</i>, <i>3</i>, 1252–1259. <a href=\"https://doi.org/10.60691/yj56-np80\">https://doi.org/10.60691/yj56-np80</a>","mla":"Gerritzen, Johannes, et al. “Direct Parameter Identification for Highly Nonlinear Strain Rate Dependent Constitutive Models Using Machine Learning.” <i>ECCM21 - Proceedings of the 21st European Conference on Composite Materials</i>, vol. 3, European Society for Composite Materials (ESCM), 2024, pp. 1252–1259, doi:<a href=\"https://doi.org/10.60691/yj56-np80\">10.60691/yj56-np80</a>.","ieee":"J. Gerritzen, A. Hornig, P. Winkler, and M. Gude, “Direct parameter identification for highly nonlinear strain rate dependent constitutive models using machine learning,” in <i>ECCM21 - Proceedings of the 21st European Conference on Composite Materials</i>, 2024, vol. 3, pp. 1252–1259, doi: <a href=\"https://doi.org/10.60691/yj56-np80\">10.60691/yj56-np80</a>.","chicago":"Gerritzen, Johannes, Andreas Hornig, Peter Winkler, and Maik Gude. “Direct Parameter Identification for Highly Nonlinear Strain Rate Dependent Constitutive Models Using Machine Learning.” In <i>ECCM21 - Proceedings of the 21st European Conference on Composite Materials</i>, 3:1252–1259. European Society for Composite Materials (ESCM), 2024. <a href=\"https://doi.org/10.60691/yj56-np80\">https://doi.org/10.60691/yj56-np80</a>.","ama":"Gerritzen J, Hornig A, Winkler P, Gude M. Direct parameter identification for highly nonlinear strain rate dependent constitutive models using machine learning. In: <i>ECCM21 - Proceedings of the 21st European Conference on Composite Materials</i>. Vol 3. European Society for Composite Materials (ESCM); 2024:1252–1259. doi:<a href=\"https://doi.org/10.60691/yj56-np80\">10.60691/yj56-np80</a>","short":"J. Gerritzen, A. Hornig, P. Winkler, M. Gude, in: ECCM21 - Proceedings of the 21st European Conference on Composite Materials, European Society for Composite Materials (ESCM), 2024, pp. 1252–1259.","bibtex":"@inproceedings{Gerritzen_Hornig_Winkler_Gude_2024, title={Direct parameter identification for highly nonlinear strain rate dependent constitutive models using machine learning}, volume={3}, DOI={<a href=\"https://doi.org/10.60691/yj56-np80\">10.60691/yj56-np80</a>}, booktitle={ECCM21 - Proceedings of the 21st European Conference on Composite Materials}, publisher={European Society for Composite Materials (ESCM)}, author={Gerritzen, Johannes and Hornig, Andreas and Winkler, Peter and Gude, Maik}, year={2024}, pages={1252–1259} }"},"doi":"10.60691/yj56-np80","language":[{"iso":"eng"}],"intvolume":"         3","date_updated":"2026-02-27T06:46:21Z","author":[{"id":"105344","full_name":"Gerritzen, Johannes","last_name":"Gerritzen","first_name":"Johannes","orcid":"0000-0002-0169-8602"},{"full_name":"Hornig, Andreas","first_name":"Andreas","last_name":"Hornig"},{"first_name":"Peter","last_name":"Winkler","full_name":"Winkler, Peter"},{"full_name":"Gude, Maik","last_name":"Gude","first_name":"Maik"}],"publication_identifier":{"isbn":["978-2-912985-01-9"]},"year":"2024","title":"Direct parameter identification for highly nonlinear strain rate dependent constitutive models using machine learning","type":"conference","keyword":["Direct parameter identification","Machine learning","Convolutional neural networks","Strain rate dependency","Fiber reinforced plastics","woven composites","segmentation","synthetic training data","x-ray computed tomography"],"date_created":"2025-11-04T12:47:06Z","abstract":[{"lang":"eng","text":"Fiber reinforced plastics (FRP) exhibit strongly non-linear deformation behavior. To capture this in simulations, intricate models with a variety of parameters are typically used. The identification of values for such parameters is highly challenging and requires in depth understanding of the model itself. Machine learning (ML) is a promising approach for alleviating this challenge by directly predicting parameters based on experimental results. So far, this works mostly for purely artificial data. In this work, two approaches to generalize to experimental data are investigated: a sequential approach, leveraging understanding of the constitutive model and a direct, purely data driven approach. This is exemplary carried out for a highly non-linear strain rate dependent constitutive model for the shear behavior of FRP.The sequential model is found to work better on both artificial and experimental data. It is capable of extracting well suited parameters from the artificial data under realistic conditions. For the experimental data, the model performance depends on the composition of the experimental curves, varying between excellently suiting and reasonable predictions. Taking the expert knowledge into account for ML-model training led to far better results than the purely data driven approach. Robustifying the model predictions on experimental data promises further improvement. "}],"publication":"ECCM21 - Proceedings of the 21st European Conference on Composite Materials"},{"article_number":"113274","_id":"62076","publisher":"Elsevier BV","language":[{"iso":"eng"}],"user_id":"105344","doi":"10.1016/j.commatsci.2024.113274","volume":244,"year":"2024","status":"public","title":"A methodology for direct parameter identification for experimental results using machine learning — Real world application to the highly non-linear deformation behavior of FRP","publication_identifier":{"issn":["0927-0256"]},"author":[{"id":"105344","orcid":"0000-0002-0169-8602","last_name":"Gerritzen","first_name":"Johannes","full_name":"Gerritzen, Johannes"},{"last_name":"Hornig","first_name":"Andreas","full_name":"Hornig, Andreas"},{"full_name":"Winkler, Peter","last_name":"Winkler","first_name":"Peter"},{"full_name":"Gude, Maik","first_name":"Maik","last_name":"Gude"}],"publication_status":"published","date_updated":"2026-02-27T06:46:35Z","intvolume":"       244","date_created":"2025-11-04T12:37:42Z","type":"journal_article","publication":"Computational Materials Science","citation":{"ieee":"J. Gerritzen, A. Hornig, P. Winkler, and M. Gude, “A methodology for direct parameter identification for experimental results using machine learning — Real world application to the highly non-linear deformation behavior of FRP,” <i>Computational Materials Science</i>, vol. 244, Art. no. 113274, 2024, doi: <a href=\"https://doi.org/10.1016/j.commatsci.2024.113274\">10.1016/j.commatsci.2024.113274</a>.","apa":"Gerritzen, J., Hornig, A., Winkler, P., &#38; Gude, M. (2024). A methodology for direct parameter identification for experimental results using machine learning — Real world application to the highly non-linear deformation behavior of FRP. <i>Computational Materials Science</i>, <i>244</i>, Article 113274. <a href=\"https://doi.org/10.1016/j.commatsci.2024.113274\">https://doi.org/10.1016/j.commatsci.2024.113274</a>","chicago":"Gerritzen, Johannes, Andreas Hornig, Peter Winkler, and Maik Gude. “A Methodology for Direct Parameter Identification for Experimental Results Using Machine Learning — Real World Application to the Highly Non-Linear Deformation Behavior of FRP.” <i>Computational Materials Science</i> 244 (2024). <a href=\"https://doi.org/10.1016/j.commatsci.2024.113274\">https://doi.org/10.1016/j.commatsci.2024.113274</a>.","short":"J. Gerritzen, A. Hornig, P. Winkler, M. Gude, Computational Materials Science 244 (2024).","mla":"Gerritzen, Johannes, et al. “A Methodology for Direct Parameter Identification for Experimental Results Using Machine Learning — Real World Application to the Highly Non-Linear Deformation Behavior of FRP.” <i>Computational Materials Science</i>, vol. 244, 113274, Elsevier BV, 2024, doi:<a href=\"https://doi.org/10.1016/j.commatsci.2024.113274\">10.1016/j.commatsci.2024.113274</a>.","bibtex":"@article{Gerritzen_Hornig_Winkler_Gude_2024, title={A methodology for direct parameter identification for experimental results using machine learning — Real world application to the highly non-linear deformation behavior of FRP}, volume={244}, DOI={<a href=\"https://doi.org/10.1016/j.commatsci.2024.113274\">10.1016/j.commatsci.2024.113274</a>}, number={113274}, journal={Computational Materials Science}, publisher={Elsevier BV}, author={Gerritzen, Johannes and Hornig, Andreas and Winkler, Peter and Gude, Maik}, year={2024} }","ama":"Gerritzen J, Hornig A, Winkler P, Gude M. A methodology for direct parameter identification for experimental results using machine learning — Real world application to the highly non-linear deformation behavior of FRP. <i>Computational Materials Science</i>. 2024;244. doi:<a href=\"https://doi.org/10.1016/j.commatsci.2024.113274\">10.1016/j.commatsci.2024.113274</a>"},"project":[{"_id":"130","name":"TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten"},{"name":"TRR 285 - Subproject A03","_id":"137"},{"name":"TRR 285 - Project Area A","_id":"131"}]},{"publication":"Materials Research Proceedings","abstract":[{"text":"<jats:p>Abstract. Traditionally, joints are cylindrical and rotationally symmetric. In the present study, non-rotationally symmetric joints are used for joining steel and Glass mat-reinforced thermoplastic sheets (GMT). In addition, the study also analyzes the impact of non-rotational symmetric joint rotation on the load-bearing capacity. Single lap joint specimens were fabricated using the In-Mold assembly technique for joining steel sheets with GMT. Tensile shear tests were performed on different orientations of the joint geometry, and it was observed that changing the joint orientation influences the load-bearing capacity. The joints are constitutively modeled using beam elements and the influence of joint rotation on load distribution is examined through a static simulation study. </jats:p>","lang":"eng"}],"date_created":"2024-08-19T08:29:22Z","type":"conference","department":[{"_id":"149"},{"_id":"321"},{"_id":"9"}],"year":"2024","title":"Non-rotationally symmetric joints – Mechanisms and load bearing capacity","author":[{"id":"76837","last_name":"Devulapally","first_name":"Deekshith Reddy","full_name":"Devulapally, Deekshith Reddy"},{"id":"38177","full_name":"Martin, Sven","last_name":"Martin","first_name":"Sven"},{"id":"553","first_name":"Thomas","last_name":"Tröster","full_name":"Tröster, Thomas"}],"publication_identifier":{"issn":["2474-395X"]},"date_updated":"2026-02-27T10:50:30Z","publication_status":"published","main_file_link":[{"open_access":"1"}],"language":[{"iso":"eng"}],"doi":"10.21741/9781644903131-183","citation":{"chicago":"Devulapally, Deekshith Reddy, Sven Martin, and Thomas Tröster. “Non-Rotationally Symmetric Joints – Mechanisms and Load Bearing Capacity.” In <i>Materials Research Proceedings</i>. Materials Research Forum LLC, 2024. <a href=\"https://doi.org/10.21741/9781644903131-183\">https://doi.org/10.21741/9781644903131-183</a>.","short":"D.R. Devulapally, S. Martin, T. Tröster, in: Materials Research Proceedings, Materials Research Forum LLC, 2024.","ieee":"D. R. Devulapally, S. Martin, and T. Tröster, “Non-rotationally symmetric joints – Mechanisms and load bearing capacity,” 2024, doi: <a href=\"https://doi.org/10.21741/9781644903131-183\">10.21741/9781644903131-183</a>.","apa":"Devulapally, D. R., Martin, S., &#38; Tröster, T. (2024). Non-rotationally symmetric joints – Mechanisms and load bearing capacity. <i>Materials Research Proceedings</i>. <a href=\"https://doi.org/10.21741/9781644903131-183\">https://doi.org/10.21741/9781644903131-183</a>","bibtex":"@inproceedings{Devulapally_Martin_Tröster_2024, title={Non-rotationally symmetric joints – Mechanisms and load bearing capacity}, DOI={<a href=\"https://doi.org/10.21741/9781644903131-183\">10.21741/9781644903131-183</a>}, booktitle={Materials Research Proceedings}, publisher={Materials Research Forum LLC}, author={Devulapally, Deekshith Reddy and Martin, Sven and Tröster, Thomas}, year={2024} }","ama":"Devulapally DR, Martin S, Tröster T. Non-rotationally symmetric joints – Mechanisms and load bearing capacity. In: <i>Materials Research Proceedings</i>. Materials Research Forum LLC; 2024. doi:<a href=\"https://doi.org/10.21741/9781644903131-183\">10.21741/9781644903131-183</a>","mla":"Devulapally, Deekshith Reddy, et al. “Non-Rotationally Symmetric Joints – Mechanisms and Load Bearing Capacity.” <i>Materials Research Proceedings</i>, Materials Research Forum LLC, 2024, doi:<a href=\"https://doi.org/10.21741/9781644903131-183\">10.21741/9781644903131-183</a>."},"project":[{"_id":"140","name":"TRR 285 – B01: TRR 285 - Subproject B01"},{"_id":"52","name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing"},{"name":"TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten","_id":"130"}],"oa":"1","status":"public","_id":"55638","publisher":"Materials Research Forum LLC","user_id":"76837"},{"status":"public","_id":"61413","publisher":"SAGE Publications","user_id":"44935","citation":{"bibtex":"@article{Kappe_Bobbert_Meschut_2024, title={Investigation of the influence of the rivet geometry on joint formation for a versatile self-piercing riveting process}, DOI={<a href=\"https://doi.org/10.1177/09544089241263141\">10.1177/09544089241263141</a>}, number={09544089241263141}, journal={Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering}, publisher={SAGE Publications}, author={Kappe, Fabian and Bobbert, Mathias and Meschut, Gerson}, year={2024} }","ama":"Kappe F, Bobbert M, Meschut G. Investigation of the influence of the rivet geometry on joint formation for a versatile self-piercing riveting process. <i>Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering</i>. Published online 2024. doi:<a href=\"https://doi.org/10.1177/09544089241263141\">10.1177/09544089241263141</a>","mla":"Kappe, Fabian, et al. “Investigation of the Influence of the Rivet Geometry on Joint Formation for a Versatile Self-Piercing Riveting Process.” <i>Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering</i>, 09544089241263141, SAGE Publications, 2024, doi:<a href=\"https://doi.org/10.1177/09544089241263141\">10.1177/09544089241263141</a>.","chicago":"Kappe, Fabian, Mathias Bobbert, and Gerson Meschut. “Investigation of the Influence of the Rivet Geometry on Joint Formation for a Versatile Self-Piercing Riveting Process.” <i>Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering</i>, 2024. <a href=\"https://doi.org/10.1177/09544089241263141\">https://doi.org/10.1177/09544089241263141</a>.","short":"F. Kappe, M. Bobbert, G. Meschut, Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering (2024).","ieee":"F. Kappe, M. Bobbert, and G. Meschut, “Investigation of the influence of the rivet geometry on joint formation for a versatile self-piercing riveting process,” <i>Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering</i>, Art. no. 09544089241263141, 2024, doi: <a href=\"https://doi.org/10.1177/09544089241263141\">10.1177/09544089241263141</a>.","apa":"Kappe, F., Bobbert, M., &#38; Meschut, G. (2024). Investigation of the influence of the rivet geometry on joint formation for a versatile self-piercing riveting process. <i>Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering</i>, Article 09544089241263141. <a href=\"https://doi.org/10.1177/09544089241263141\">https://doi.org/10.1177/09544089241263141</a>"},"project":[{"_id":"130","name":"TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten"},{"name":"TRR 285 - Project Area C","_id":"133"},{"name":"TRR 285 - Subproject C02","_id":"146"}],"quality_controlled":"1","author":[{"last_name":"Kappe","first_name":"Fabian","full_name":"Kappe, Fabian","id":"66459"},{"id":"7850","full_name":"Bobbert, Mathias","last_name":"Bobbert","first_name":"Mathias"},{"orcid":"0000-0002-2763-1246","first_name":"Gerson","last_name":"Meschut","full_name":"Meschut, Gerson","id":"32056"}],"publication_identifier":{"issn":["0954-4089","2041-3009"]},"title":"Investigation of the influence of the rivet geometry on joint formation for a versatile self-piercing riveting process","year":"2024","date_updated":"2025-09-23T13:15:51Z","publication_status":"published","language":[{"iso":"eng"}],"article_number":"09544089241263141","doi":"10.1177/09544089241263141","publication":"Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering","abstract":[{"text":"Climate change has led to a large number of countries deciding to reduce carbon dioxide (CO<jats:sub>2</jats:sub>) emissions significantly. As the mobility sector is a major contributor to CO<jats:sub>2</jats:sub>, various strategies are being pursued to achieve the climate targets set. An increasingly applied lightweight design method is the use of multi-material constructions. To join these structures, mechanical joining technologies such as self-pierce riveting are being used. As a result of the currently rigid tool systems, which cannot react to changing boundary conditions, a large number of rivet–die combinations is required to join the rising number of materials as well as material thickness combinations. Thus, new, versatile joining technologies are needed that can react to the described changes. The versatile self-piercing riveting (V-SPR) process is one possible approach. In this process, different material thicknesses can be joined by using a multi-range capable rivet which is set by a joining system with extended actuator technology. In this study, the V-SPR joining process is analysed numerically according to the influence of the geometrical rivet parameters on the joints characteristics as well as the resulting material flow. The investigations showed that the shank geometry has a decisive influence on the expansion of the rivet. Furthermore, the rivet length could be proven to be an influencing factor. By changing the head radii and the protrusion height, the forming behaviour of the rivet head onto the punch-sided joining part could be improved and thus the formation of air pockets was prevented. Based on the numerical investigations, a novel rivet geometry was developed and produced by machining. Subsequently, experimentally produced joints were analysed according to their joint formation and load-bearing capacity.","lang":"eng"}],"date_created":"2025-09-23T13:06:35Z","department":[{"_id":"43"},{"_id":"157"}],"type":"journal_article"},{"date_updated":"2025-09-23T13:33:49Z","publication_status":"published","publication_identifier":{"issn":["0954-4089","2041-3009"]},"author":[{"full_name":"Wituschek, Simon","last_name":"Wituschek","first_name":"Simon","id":"83423"},{"first_name":"Leonie","last_name":"Elbel","full_name":"Elbel, Leonie"},{"full_name":"Lechner, Michael","last_name":"Lechner","first_name":"Michael"}],"status":"public","year":"2024","title":"Influence of the process time on a self-piercing riveting process with tumbling kinematic","doi":"10.1177/09544089241248430","user_id":"44935","_id":"61414","publisher":"SAGE Publications","language":[{"iso":"eng"}],"article_number":"09544089241248430","project":[{"name":"TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten","_id":"130"},{"name":"TRR 285 - Project Area C","_id":"133"},{"_id":"146","name":"TRR 285 - Subproject C02"}],"quality_controlled":"1","abstract":[{"lang":"eng","text":"The increasing significance of ecological responsibility, stricter political regulations and economic objectives are driving innovation in research fields such as lightweight construction. One of the most important popular methods is the use of multi-material systems. Due to the different geometric and mechanical properties of the various materials used, resource efficient applications and utilizations are possible. Great challenges arise for the joining processes to realize these multi-material systems, since conventional joining processes reach their limits. In the field of mechanical joining processes, there are continuously new approaches, such as superimposing the punch in a self-piercing riveting process with a tumbling kinematic, to increase the number of adaptable process parameters and enhance the process control. Through various preliminary tests, a good understanding of the process has been developed, which allows to directly control the geometric joint parameters by configuring the tumbling strategy. A major challenge, particularly with regard to future industrial applications, is the process time, which is comparatively high due to the tumbling kinematics. In the investigations, a reduction of approximately 90% of the process time is targeted by adapting the joining and tumbling strategy. Therefore, the correlation of the traverse velocity and the tumbling velocity are examined in a gradual series of experiments. To represent realistic applications, the experiments are carried out with a dual-phase steel and a precipitation-hardening aluminum alloy. For identifying the influence of the process parameters on the joining process, a constant rivet–die combination is applied. Further, the examination of force–displacement curves is conducted. Moreover, the determination of geometric joint parameters is reliant upon macrographs to assess the influence of the joining time on the geometric joint formation. The test results show that a significant increase in joining speed with a resulting reduction in process time is feasible. Although the joining properties are affected, reliable joining is possible. In particular, the shaft thickness of the rivet is influenced by the varying proportion of the tumbling process in the joining operation and increases with higher joining speeds."}],"citation":{"apa":"Wituschek, S., Elbel, L., &#38; Lechner, M. (2024). Influence of the process time on a self-piercing riveting process with tumbling kinematic. <i>Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering</i>, Article 09544089241248430. <a href=\"https://doi.org/10.1177/09544089241248430\">https://doi.org/10.1177/09544089241248430</a>","ieee":"S. Wituschek, L. Elbel, and M. Lechner, “Influence of the process time on a self-piercing riveting process with tumbling kinematic,” <i>Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering</i>, Art. no. 09544089241248430, 2024, doi: <a href=\"https://doi.org/10.1177/09544089241248430\">10.1177/09544089241248430</a>.","short":"S. Wituschek, L. Elbel, M. Lechner, Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering (2024).","chicago":"Wituschek, Simon, Leonie Elbel, and Michael Lechner. “Influence of the Process Time on a Self-Piercing Riveting Process with Tumbling Kinematic.” <i>Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering</i>, 2024. <a href=\"https://doi.org/10.1177/09544089241248430\">https://doi.org/10.1177/09544089241248430</a>.","mla":"Wituschek, Simon, et al. “Influence of the Process Time on a Self-Piercing Riveting Process with Tumbling Kinematic.” <i>Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering</i>, 09544089241248430, SAGE Publications, 2024, doi:<a href=\"https://doi.org/10.1177/09544089241248430\">10.1177/09544089241248430</a>.","ama":"Wituschek S, Elbel L, Lechner M. Influence of the process time on a self-piercing riveting process with tumbling kinematic. <i>Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering</i>. Published online 2024. doi:<a href=\"https://doi.org/10.1177/09544089241248430\">10.1177/09544089241248430</a>","bibtex":"@article{Wituschek_Elbel_Lechner_2024, title={Influence of the process time on a self-piercing riveting process with tumbling kinematic}, DOI={<a href=\"https://doi.org/10.1177/09544089241248430\">10.1177/09544089241248430</a>}, number={09544089241248430}, journal={Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering}, publisher={SAGE Publications}, author={Wituschek, Simon and Elbel, Leonie and Lechner, Michael}, year={2024} }"},"publication":"Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering","type":"journal_article","date_created":"2025-09-23T13:16:12Z"},{"publication_status":"published","date_updated":"2025-09-23T13:34:05Z","publication_identifier":{"issn":["0954-4089","2041-3009"]},"author":[{"full_name":"Hetzel, A.","first_name":"A.","last_name":"Hetzel"},{"id":"83423","first_name":"Simon","last_name":"Wituschek","full_name":"Wituschek, Simon"},{"first_name":"D.","last_name":"Römisch","full_name":"Römisch, D."},{"full_name":"Sippel, F.","last_name":"Sippel","first_name":"F."},{"full_name":"Lechner, M.","last_name":"Lechner","first_name":"M."},{"first_name":"M.","last_name":"Merklein","full_name":"Merklein, M."}],"status":"public","year":"2024","title":"Investigation on the load-bearing capacity and joint formation of hybrid functional components joined by orbital forming","user_id":"44935","doi":"10.1177/09544089241282807","publisher":"SAGE Publications","_id":"61415","language":[{"iso":"eng"}],"article_number":"09544089241282807","project":[{"name":"TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten","_id":"130"},{"_id":"133","name":"TRR 285 - Project Area C"},{"name":"TRR 285 - Subproject C02","_id":"146"},{"name":"TRR 285 - Subproject C01","_id":"145"}],"abstract":[{"lang":"eng","text":"Increasing material costs, decreasing availability, and ever-higher demands on environmental compatibility and complexity require new strategies in the development and production of functional components. Consequently, a combined approach from the areas of design, material science, and manufacturing is mandatory, in order to meet the requirements. Reducing the number of parts, using lightweight materials and applying hybrid components with a multimaterial mix are possible solutions. Nevertheless, conventional joining operations like welding or riveting are reaching their limits in terms of material utilization, load-bearing capacity as well as versatility of the process. Thus, innovative and versatile joining by forming operations and process combinations are focus of current research. In this context, the innovative process of orbital forming had been investigated as a joining by forming operation to manufacture load-adapted hybrid functional components. By tilting of one tool component during the process, a radial material flow is generated, allowing the crimping of the two joining partners. Nevertheless, the load-bearing capacity in axial direction could be identified as limiting factor for a possible application. Therefore, the aim of this investigation is the development of a fundamental process understanding on the influence of a novel geometrical adaption of the joint on the resulting load bearing capacity. The influence of varying geometrical proportions of the joint on the quality is evaluated, considering the form filling, the geometrical properties of the components as well as the maximum transmittable axial load. As joining partners, the dual-phase steel DP600 and the aluminum alloy EN AW-5754 with a thickness of 2.0 mm are used. "}],"quality_controlled":"1","citation":{"ama":"Hetzel A, Wituschek S, Römisch D, Sippel F, Lechner M, Merklein M. Investigation on the load-bearing capacity and joint formation of hybrid functional components joined by orbital forming. <i>Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering</i>. Published online 2024. doi:<a href=\"https://doi.org/10.1177/09544089241282807\">10.1177/09544089241282807</a>","bibtex":"@article{Hetzel_Wituschek_Römisch_Sippel_Lechner_Merklein_2024, title={Investigation on the load-bearing capacity and joint formation of hybrid functional components joined by orbital forming}, DOI={<a href=\"https://doi.org/10.1177/09544089241282807\">10.1177/09544089241282807</a>}, number={09544089241282807}, journal={Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering}, publisher={SAGE Publications}, author={Hetzel, A. and Wituschek, Simon and Römisch, D. and Sippel, F. and Lechner, M. and Merklein, M.}, year={2024} }","mla":"Hetzel, A., et al. “Investigation on the Load-Bearing Capacity and Joint Formation of Hybrid Functional Components Joined by Orbital Forming.” <i>Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering</i>, 09544089241282807, SAGE Publications, 2024, doi:<a href=\"https://doi.org/10.1177/09544089241282807\">10.1177/09544089241282807</a>.","short":"A. Hetzel, S. Wituschek, D. Römisch, F. Sippel, M. Lechner, M. Merklein, Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering (2024).","chicago":"Hetzel, A., Simon Wituschek, D. Römisch, F. Sippel, M. Lechner, and M. Merklein. “Investigation on the Load-Bearing Capacity and Joint Formation of Hybrid Functional Components Joined by Orbital Forming.” <i>Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering</i>, 2024. <a href=\"https://doi.org/10.1177/09544089241282807\">https://doi.org/10.1177/09544089241282807</a>.","apa":"Hetzel, A., Wituschek, S., Römisch, D., Sippel, F., Lechner, M., &#38; Merklein, M. (2024). Investigation on the load-bearing capacity and joint formation of hybrid functional components joined by orbital forming. <i>Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering</i>, Article 09544089241282807. <a href=\"https://doi.org/10.1177/09544089241282807\">https://doi.org/10.1177/09544089241282807</a>","ieee":"A. Hetzel, S. Wituschek, D. Römisch, F. Sippel, M. Lechner, and M. Merklein, “Investigation on the load-bearing capacity and joint formation of hybrid functional components joined by orbital forming,” <i>Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering</i>, Art. no. 09544089241282807, 2024, doi: <a href=\"https://doi.org/10.1177/09544089241282807\">10.1177/09544089241282807</a>."},"publication":"Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering","type":"journal_article","date_created":"2025-09-23T13:21:21Z"},{"quality_controlled":"1","project":[{"name":"TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten","_id":"130"},{"name":"TRR 285 - Project Area C","_id":"133"},{"_id":"146","name":"TRR 285 - Subproject C02"}],"citation":{"bibtex":"@article{Kappe_Bobbert_Meschut_2024, title={Influence of local heat treatment of rivets on the joint formation of a versatile joining process}, volume={1307}, DOI={<a href=\"https://doi.org/10.1088/1757-899x/1307/1/012009\">10.1088/1757-899x/1307/1/012009</a>}, number={1012009}, journal={IOP Conference Series: Materials Science and Engineering}, publisher={IOP Publishing}, author={Kappe, Fabian and Bobbert, Mathias and Meschut, Gerson}, year={2024} }","ama":"Kappe F, Bobbert M, Meschut G. Influence of local heat treatment of rivets on the joint formation of a versatile joining process. <i>IOP Conference Series: Materials Science and Engineering</i>. 2024;1307(1). doi:<a href=\"https://doi.org/10.1088/1757-899x/1307/1/012009\">10.1088/1757-899x/1307/1/012009</a>","mla":"Kappe, Fabian, et al. “Influence of Local Heat Treatment of Rivets on the Joint Formation of a Versatile Joining Process.” <i>IOP Conference Series: Materials Science and Engineering</i>, vol. 1307, no. 1, 012009, IOP Publishing, 2024, doi:<a href=\"https://doi.org/10.1088/1757-899x/1307/1/012009\">10.1088/1757-899x/1307/1/012009</a>.","chicago":"Kappe, Fabian, Mathias Bobbert, and Gerson Meschut. “Influence of Local Heat Treatment of Rivets on the Joint Formation of a Versatile Joining Process.” <i>IOP Conference Series: Materials Science and Engineering</i> 1307, no. 1 (2024). <a href=\"https://doi.org/10.1088/1757-899x/1307/1/012009\">https://doi.org/10.1088/1757-899x/1307/1/012009</a>.","short":"F. Kappe, M. Bobbert, G. Meschut, IOP Conference Series: Materials Science and Engineering 1307 (2024).","ieee":"F. Kappe, M. Bobbert, and G. Meschut, “Influence of local heat treatment of rivets on the joint formation of a versatile joining process,” <i>IOP Conference Series: Materials Science and Engineering</i>, vol. 1307, no. 1, Art. no. 012009, 2024, doi: <a href=\"https://doi.org/10.1088/1757-899x/1307/1/012009\">10.1088/1757-899x/1307/1/012009</a>.","apa":"Kappe, F., Bobbert, M., &#38; Meschut, G. (2024). Influence of local heat treatment of rivets on the joint formation of a versatile joining process. <i>IOP Conference Series: Materials Science and Engineering</i>, <i>1307</i>(1), Article 012009. <a href=\"https://doi.org/10.1088/1757-899x/1307/1/012009\">https://doi.org/10.1088/1757-899x/1307/1/012009</a>"},"status":"public","user_id":"44935","volume":1307,"publisher":"IOP Publishing","_id":"61416","abstract":[{"text":"Abstract\r\n               An efficient lightweight construction method is the combination of different materials in order to adapt the structure to the applied load. To join these multi-material structures mechanical joining technologies are applied. However, the rigid tooling systems cannot be adjusted to changing boundary conditions which is why new, versatile joining technologies are required. In the versatile self-piercing riveting (V-SPR) process presented in [1] different material combination are joined by using a multi-range capable rivet. The rivet head is formed onto the respective thickness of the joint by an outer punch. In order to punch thru the upper sheet a great rivet hardness is required whereas a lower hardness is required for the subsequent forming of the rivet head. To achieve a combination of these requirements, this study investigates a local heat treatment of the rivet. The aim is to determine the feasibility of such a heat treatment as well as to investigate the influence on the joint formation.","lang":"eng"}],"publication":"IOP Conference Series: Materials Science and Engineering","issue":"1","type":"journal_article","department":[{"_id":"43"}],"date_created":"2025-09-23T13:31:11Z","date_updated":"2025-09-23T13:34:12Z","publication_status":"published","intvolume":"      1307","year":"2024","title":"Influence of local heat treatment of rivets on the joint formation of a versatile joining process","author":[{"last_name":"Kappe","first_name":"Fabian","full_name":"Kappe, Fabian","id":"66459"},{"first_name":"Mathias","last_name":"Bobbert","full_name":"Bobbert, Mathias","id":"7850"},{"first_name":"Gerson","orcid":"0000-0002-2763-1246","last_name":"Meschut","full_name":"Meschut, Gerson","id":"32056"}],"publication_identifier":{"issn":["1757-8981","1757-899X"]},"doi":"10.1088/1757-899x/1307/1/012009","article_number":"012009","language":[{"iso":"eng"}]},{"page":"151-156","_id":"58342","publisher":"Elsevier BV","user_id":"107109","volume":129,"status":"public","citation":{"mla":"Bode, Christoph, et al. “On the Transferability of Nominal Surrogate Models to Uncertainty Consideration of Clinch Joint Characteristics.” <i>Procedia CIRP</i>, vol. 129, Elsevier BV, 2024, pp. 151–56, doi:<a href=\"https://doi.org/10.1016/j.procir.2024.10.027\">10.1016/j.procir.2024.10.027</a>.","bibtex":"@article{Bode_Goetz_Wartzack_2024, title={On the transferability of nominal surrogate models to uncertainty consideration of clinch joint characteristics}, volume={129}, DOI={<a href=\"https://doi.org/10.1016/j.procir.2024.10.027\">10.1016/j.procir.2024.10.027</a>}, journal={Procedia CIRP}, publisher={Elsevier BV}, author={Bode, Christoph and Goetz, Stefan and Wartzack, Sandro}, year={2024}, pages={151–156} }","ama":"Bode C, Goetz S, Wartzack S. On the transferability of nominal surrogate models to uncertainty consideration of clinch joint characteristics. <i>Procedia CIRP</i>. 2024;129:151-156. doi:<a href=\"https://doi.org/10.1016/j.procir.2024.10.027\">10.1016/j.procir.2024.10.027</a>","ieee":"C. Bode, S. Goetz, and S. Wartzack, “On the transferability of nominal surrogate models to uncertainty consideration of clinch joint characteristics,” <i>Procedia CIRP</i>, vol. 129, pp. 151–156, 2024, doi: <a href=\"https://doi.org/10.1016/j.procir.2024.10.027\">10.1016/j.procir.2024.10.027</a>.","apa":"Bode, C., Goetz, S., &#38; Wartzack, S. (2024). On the transferability of nominal surrogate models to uncertainty consideration of clinch joint characteristics. <i>Procedia CIRP</i>, <i>129</i>, 151–156. <a href=\"https://doi.org/10.1016/j.procir.2024.10.027\">https://doi.org/10.1016/j.procir.2024.10.027</a>","short":"C. Bode, S. Goetz, S. Wartzack, Procedia CIRP 129 (2024) 151–156.","chicago":"Bode, Christoph, Stefan Goetz, and Sandro Wartzack. “On the Transferability of Nominal Surrogate Models to Uncertainty Consideration of Clinch Joint Characteristics.” <i>Procedia CIRP</i> 129 (2024): 151–56. <a href=\"https://doi.org/10.1016/j.procir.2024.10.027\">https://doi.org/10.1016/j.procir.2024.10.027</a>."},"project":[{"name":"TRR 285 - B: TRR 285 - Project Area B","_id":"132"},{"_id":"130","name":"TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten"},{"_id":"144","name":"TRR 285 - Subproject B05"}],"language":[{"iso":"eng"}],"doi":"10.1016/j.procir.2024.10.027","title":"On the transferability of nominal surrogate models to uncertainty consideration of clinch joint characteristics","year":"2024","author":[{"full_name":"Bode, Christoph","last_name":"Bode","first_name":"Christoph"},{"last_name":"Goetz","first_name":"Stefan","full_name":"Goetz, Stefan"},{"full_name":"Wartzack, Sandro","last_name":"Wartzack","first_name":"Sandro"}],"publication_identifier":{"issn":["2212-8271"]},"date_updated":"2025-10-01T14:32:26Z","publication_status":"published","intvolume":"       129","date_created":"2025-01-23T13:53:59Z","type":"journal_article","department":[{"_id":"157"}],"publication":"Procedia CIRP"},{"editor":[{"last_name":"Krupp","first_name":"Ulrich","full_name":"Krupp, Ulrich"},{"full_name":"Steller, Ingo","last_name":"Steller","first_name":"Ingo"}],"user_id":"98812","_id":"61766","publisher":"Stahlinstitut VDEh","conference":{"location":"Krefeld","start_date":"2024-12-05","name":"42. Vortrags- und Diskussionstagung Werkstoffprüfung 2024","end_date":"2024-12-06"},"status":"public","place":"Düsseldorf","project":[{"name":"TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten","_id":"130"},{"name":"TRR 285 - Project Area C","_id":"133"},{"_id":"148","name":"TRR 285 - Subproject C04"}],"quality_controlled":"1","citation":{"short":"G. Reschke, A. Brosius, in: U. Krupp, I. Steller (Eds.), Werkstoffe und Bauteile auf dem Prüfstand, Stahlinstitut VDEh, Düsseldorf, 2024.","chicago":"Reschke, Gregor, and Alexander Brosius. “Transiente Dynamische Analyse – Vergleich zeit- und frequenzdiskreter Auswertemethoden anhand geclinchter Aluminiumverbindungen.” In <i>Werkstoffe und Bauteile auf dem Prüfstand</i>, edited by Ulrich Krupp and Ingo Steller. Düsseldorf: Stahlinstitut VDEh, 2024.","ieee":"G. Reschke and A. Brosius, “Transiente Dynamische Analyse – Vergleich zeit- und frequenzdiskreter Auswertemethoden anhand geclinchter Aluminiumverbindungen,” in <i>Werkstoffe und Bauteile auf dem Prüfstand</i>, Krefeld, 2024.","apa":"Reschke, G., &#38; Brosius, A. (2024). Transiente Dynamische Analyse – Vergleich zeit- und frequenzdiskreter Auswertemethoden anhand geclinchter Aluminiumverbindungen. In U. Krupp &#38; I. Steller (Eds.), <i>Werkstoffe und Bauteile auf dem Prüfstand</i>. Stahlinstitut VDEh.","bibtex":"@inproceedings{Reschke_Brosius_2024, place={Düsseldorf}, title={Transiente Dynamische Analyse – Vergleich zeit- und frequenzdiskreter Auswertemethoden anhand geclinchter Aluminiumverbindungen}, booktitle={Werkstoffe und Bauteile auf dem Prüfstand}, publisher={Stahlinstitut VDEh}, author={Reschke, Gregor and Brosius, Alexander}, editor={Krupp, Ulrich and Steller, Ingo}, year={2024} }","ama":"Reschke G, Brosius A. Transiente Dynamische Analyse – Vergleich zeit- und frequenzdiskreter Auswertemethoden anhand geclinchter Aluminiumverbindungen. In: Krupp U, Steller I, eds. <i>Werkstoffe und Bauteile auf dem Prüfstand</i>. Stahlinstitut VDEh; 2024.","mla":"Reschke, Gregor, and Alexander Brosius. “Transiente Dynamische Analyse – Vergleich zeit- und frequenzdiskreter Auswertemethoden anhand geclinchter Aluminiumverbindungen.” <i>Werkstoffe und Bauteile auf dem Prüfstand</i>, edited by Ulrich Krupp and Ingo Steller, Stahlinstitut VDEh, 2024."},"language":[{"iso":"ger"}],"date_updated":"2025-10-09T06:32:46Z","publication_status":"published","author":[{"full_name":"Reschke, Gregor","first_name":"Gregor","last_name":"Reschke"},{"last_name":"Brosius","first_name":"Alexander","full_name":"Brosius, Alexander"}],"publication_identifier":{"isbn":["978-3-941269-97-2"]},"year":"2024","title":"Transiente Dynamische Analyse – Vergleich zeit- und frequenzdiskreter Auswertemethoden anhand geclinchter Aluminiumverbindungen","department":[{"_id":"43"}],"type":"conference","date_created":"2025-10-09T06:24:40Z","publication":"Werkstoffe und Bauteile auf dem Prüfstand"},{"department":[{"_id":"630"}],"type":"journal_article","date_created":"2025-10-14T13:42:51Z","issue":"s1","publication":"tm - Technisches Messen","doi":"10.1515/teme-2024-0044","language":[{"iso":"eng"}],"main_file_link":[{"open_access":"1","url":"https://www.degruyterbrill.com/document/doi/10.1515/teme-2024-0044/pdf?licenseType=free"}],"article_type":"original","intvolume":"        91","publication_status":"published","date_updated":"2025-10-14T13:55:53Z","publication_identifier":{"issn":["2196-7113","0171-8096"]},"author":[{"last_name":"Butzhammer","first_name":"Lorenz","full_name":"Butzhammer, Lorenz"},{"first_name":"Tino","last_name":"Hausotte","full_name":"Hausotte, Tino"}],"year":"2024","title":"Task-specific scan trajectory modification for dimensional X-ray computed Tomography with high throughput","oa":"1","project":[{"_id":"130","name":"TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten"},{"_id":"133","name":"TRR 285 - Project Area C"},{"_id":"149","name":"TRR 285 - Subproject C05"}],"citation":{"ieee":"L. Butzhammer and T. Hausotte, “Task-specific scan trajectory modification for dimensional X-ray computed Tomography with high throughput,” <i>tm - Technisches Messen</i>, vol. 91, no. s1, pp. 2–7, 2024, doi: <a href=\"https://doi.org/10.1515/teme-2024-0044\">10.1515/teme-2024-0044</a>.","apa":"Butzhammer, L., &#38; Hausotte, T. (2024). Task-specific scan trajectory modification for dimensional X-ray computed Tomography with high throughput. <i>Tm - Technisches Messen</i>, <i>91</i>(s1), 2–7. <a href=\"https://doi.org/10.1515/teme-2024-0044\">https://doi.org/10.1515/teme-2024-0044</a>","short":"L. Butzhammer, T. Hausotte, Tm - Technisches Messen 91 (2024) 2–7.","chicago":"Butzhammer, Lorenz, and Tino Hausotte. “Task-Specific Scan Trajectory Modification for Dimensional X-Ray Computed Tomography with High Throughput.” <i>Tm - Technisches Messen</i> 91, no. s1 (2024): 2–7. <a href=\"https://doi.org/10.1515/teme-2024-0044\">https://doi.org/10.1515/teme-2024-0044</a>.","mla":"Butzhammer, Lorenz, and Tino Hausotte. “Task-Specific Scan Trajectory Modification for Dimensional X-Ray Computed Tomography with High Throughput.” <i>Tm - Technisches Messen</i>, vol. 91, no. s1, Walter de Gruyter GmbH, 2024, pp. 2–7, doi:<a href=\"https://doi.org/10.1515/teme-2024-0044\">10.1515/teme-2024-0044</a>.","bibtex":"@article{Butzhammer_Hausotte_2024, title={Task-specific scan trajectory modification for dimensional X-ray computed Tomography with high throughput}, volume={91}, DOI={<a href=\"https://doi.org/10.1515/teme-2024-0044\">10.1515/teme-2024-0044</a>}, number={s1}, journal={tm - Technisches Messen}, publisher={Walter de Gruyter GmbH}, author={Butzhammer, Lorenz and Hausotte, Tino}, year={2024}, pages={2–7} }","ama":"Butzhammer L, Hausotte T. Task-specific scan trajectory modification for dimensional X-ray computed Tomography with high throughput. <i>tm - Technisches Messen</i>. 2024;91(s1):2-7. doi:<a href=\"https://doi.org/10.1515/teme-2024-0044\">10.1515/teme-2024-0044</a>"},"volume":91,"user_id":"93720","publisher":"Walter de Gruyter GmbH","_id":"61824","page":"2-7","status":"public"},{"abstract":[{"text":"This study focuses on the phenomenological change in material strength caused by a specific heat treatment and the subsequent analysis of the influence on the clinching process and the resulting joint properties. For this purpose, three series of tests were performed. In the first series of tests, the influence of heat treatment up to 340 °C on the mechanical properties of an age-hardenable AlMgSi alloy was investigated. Holding time and temperature were varied and the material strength was evaluated by tensile and hardness tests. Two strength-increasing and two strength-reducing heat treatment parameters were identified. In the second series of tests, selected heat treatment parameters were applied to a larger number of specimens and the joint strength was investigated by shear and head tensile tests. In the shear tensile test, mainly the properties of the punch-side material have an influence on the resulting joint strength. A change in strength of the die-side material can be neglected. In contrast, the properties of both sheets are important in the head tensile test. The strength of the joint will only increase if the strength of both sheets is increased. In general, a strength increasing heat treatment resulted in higher joint strength. In the third series of tests, the factor of punch displacement was considered, which was demonstrated to directly influence the formation of the clinched joint geometry.","lang":"eng"}],"publication":"Journal of Advanced Joining Processes","type":"journal_article","keyword":["Joining by forming","Clinching","EN AW-6014","Heat treatment","Load-bearing capacity"],"department":[{"_id":"630"}],"date_created":"2025-06-23T07:54:23Z","date_updated":"2025-06-23T07:57:53Z","publication_status":"published","intvolume":"        10","year":"2024","title":"Influence of the material properties on the clinching process and the resulting load-bearing capacity of the joint","publication_identifier":{"issn":["2666-3309"]},"author":[{"first_name":"Christian","last_name":"Steinfelder","full_name":"Steinfelder, Christian"},{"full_name":"Rempel, Dennis","last_name":"Rempel","first_name":"Dennis"},{"last_name":"Brosius","first_name":"Alexander","full_name":"Brosius, Alexander"}],"doi":"10.1016/j.jajp.2024.100263","article_number":"100263","language":[{"iso":"eng"}],"project":[{"grant_number":"418701707","_id":"130","name":"TRR 285: TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten"},{"name":"TRR 285 - B: TRR 285 - Project Area B","_id":"132"},{"name":"TRR 285 – B01: TRR 285 - Subproject B01","_id":"140"}],"citation":{"mla":"Steinfelder, Christian, et al. “Influence of the Material Properties on the Clinching Process and the Resulting Load-Bearing Capacity of the Joint.” <i>Journal of Advanced Joining Processes</i>, vol. 10, 100263, Elsevier BV, 2024, doi:<a href=\"https://doi.org/10.1016/j.jajp.2024.100263\">10.1016/j.jajp.2024.100263</a>.","bibtex":"@article{Steinfelder_Rempel_Brosius_2024, title={Influence of the material properties on the clinching process and the resulting load-bearing capacity of the joint}, volume={10}, DOI={<a href=\"https://doi.org/10.1016/j.jajp.2024.100263\">10.1016/j.jajp.2024.100263</a>}, number={100263}, journal={Journal of Advanced Joining Processes}, publisher={Elsevier BV}, author={Steinfelder, Christian and Rempel, Dennis and Brosius, Alexander}, year={2024} }","ama":"Steinfelder C, Rempel D, Brosius A. Influence of the material properties on the clinching process and the resulting load-bearing capacity of the joint. <i>Journal of Advanced Joining Processes</i>. 2024;10. doi:<a href=\"https://doi.org/10.1016/j.jajp.2024.100263\">10.1016/j.jajp.2024.100263</a>","ieee":"C. Steinfelder, D. Rempel, and A. Brosius, “Influence of the material properties on the clinching process and the resulting load-bearing capacity of the joint,” <i>Journal of Advanced Joining Processes</i>, vol. 10, Art. no. 100263, 2024, doi: <a href=\"https://doi.org/10.1016/j.jajp.2024.100263\">10.1016/j.jajp.2024.100263</a>.","apa":"Steinfelder, C., Rempel, D., &#38; Brosius, A. (2024). Influence of the material properties on the clinching process and the resulting load-bearing capacity of the joint. <i>Journal of Advanced Joining Processes</i>, <i>10</i>, Article 100263. <a href=\"https://doi.org/10.1016/j.jajp.2024.100263\">https://doi.org/10.1016/j.jajp.2024.100263</a>","chicago":"Steinfelder, Christian, Dennis Rempel, and Alexander Brosius. “Influence of the Material Properties on the Clinching Process and the Resulting Load-Bearing Capacity of the Joint.” <i>Journal of Advanced Joining Processes</i> 10 (2024). <a href=\"https://doi.org/10.1016/j.jajp.2024.100263\">https://doi.org/10.1016/j.jajp.2024.100263</a>.","short":"C. Steinfelder, D. Rempel, A. Brosius, Journal of Advanced Joining Processes 10 (2024)."},"status":"public","user_id":"104464","volume":10,"_id":"60300","publisher":"Elsevier BV"},{"_id":"54650","publisher":"Materials Research Forum LLC","language":[{"iso":"eng"}],"doi":"10.21741/9781644903131-180","user_id":"7850","year":"2024","title":"Form-based manufacturing of aluminium and steel auxiliary joining elements as the basis for an efficient joining operation","status":"public","conference":{"location":"Toulouse","name":"ESAFORM 2024"},"publication_identifier":{"issn":["2474-395X"]},"author":[{"id":"83141","full_name":"Borgert, Thomas","first_name":"Thomas","last_name":"Borgert"},{"id":"88725","last_name":"Nordieker","first_name":"Ansgar Bernhard","full_name":"Nordieker, Ansgar Bernhard"},{"full_name":"Homberg, Werner","first_name":"Werner","last_name":"Homberg","id":"233"}],"date_updated":"2026-05-12T11:56:47Z","publication_status":"published","date_created":"2024-06-07T09:38:45Z","type":"conference","department":[{"_id":"156"}],"publication":"Materials Research Proceedings","citation":{"ama":"Borgert T, Nordieker AB, Homberg W. Form-based manufacturing of aluminium and steel auxiliary joining elements as the basis for an efficient joining operation. In: <i>Materials Research Proceedings</i>. Materials Research Forum LLC; 2024. doi:<a href=\"https://doi.org/10.21741/9781644903131-180\">10.21741/9781644903131-180</a>","bibtex":"@inproceedings{Borgert_Nordieker_Homberg_2024, title={Form-based manufacturing of aluminium and steel auxiliary joining elements as the basis for an efficient joining operation}, DOI={<a href=\"https://doi.org/10.21741/9781644903131-180\">10.21741/9781644903131-180</a>}, booktitle={Materials Research Proceedings}, publisher={Materials Research Forum LLC}, author={Borgert, Thomas and Nordieker, Ansgar Bernhard and Homberg, Werner}, year={2024} }","mla":"Borgert, Thomas, et al. “Form-Based Manufacturing of Aluminium and Steel Auxiliary Joining Elements as the Basis for an Efficient Joining Operation.” <i>Materials Research Proceedings</i>, Materials Research Forum LLC, 2024, doi:<a href=\"https://doi.org/10.21741/9781644903131-180\">10.21741/9781644903131-180</a>.","short":"T. Borgert, A.B. Nordieker, W. Homberg, in: Materials Research Proceedings, Materials Research Forum LLC, 2024.","chicago":"Borgert, Thomas, Ansgar Bernhard Nordieker, and Werner Homberg. “Form-Based Manufacturing of Aluminium and Steel Auxiliary Joining Elements as the Basis for an Efficient Joining Operation.” In <i>Materials Research Proceedings</i>. Materials Research Forum LLC, 2024. <a href=\"https://doi.org/10.21741/9781644903131-180\">https://doi.org/10.21741/9781644903131-180</a>.","apa":"Borgert, T., Nordieker, A. B., &#38; Homberg, W. (2024). Form-based manufacturing of aluminium and steel auxiliary joining elements as the basis for an efficient joining operation. <i>Materials Research Proceedings</i>. ESAFORM 2024, Toulouse. <a href=\"https://doi.org/10.21741/9781644903131-180\">https://doi.org/10.21741/9781644903131-180</a>","ieee":"T. Borgert, A. B. Nordieker, and W. Homberg, “Form-based manufacturing of aluminium and steel auxiliary joining elements as the basis for an efficient joining operation,” presented at the ESAFORM 2024, Toulouse, 2024, doi: <a href=\"https://doi.org/10.21741/9781644903131-180\">10.21741/9781644903131-180</a>."},"abstract":[{"text":"<jats:p>Abstract. Reducing the weight of vehicles can significantly lower the energy or fuel consumed and thus the emissions during operation. One possibility to assess this is the use of a property adapted multi-material systems containing high strength steel, light metals like aluminium or magnesium and fibre reinforced plastics. While expanding the number of materials used new challenges arise for the production and furthermore the joining technology to manufacture the vehicle made of the multi-material systems. One approach to overcome these challenges is to use innovative and adaptable joining techniques which allows the manufacturing of joints of different material combinations. Extensive research activities on the two stage thermo-mechanical joining process with adaptable joining elements was able to demonstrate the great potentials in terms of joining dissimilar materials with good strength. The previously kinematic and path-based fabrication of auxiliary joining elements is modified in this publication to a form-based approach with a perspective of establishing an efficient process chain using easily and cheaply available rods. Based on the new approach to produce the auxiliary joining elements, it can be demonstrated that a reproducible production of the geometry is possible for the investigated steel as well as aluminium material. </jats:p>","lang":"eng"}],"project":[{"_id":"133","name":"TRR 285 - Project Area C"},{"name":"TRR 285 - Subproject C03","_id":"147"},{"name":"TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten","_id":"130"}]},{"status":"public","_id":"54649","publisher":"Elsevier BV","user_id":"7850","volume":9,"citation":{"bibtex":"@article{Borgert_Nordieker_Wiens_Homberg_2024, title={Investigations to improve the tool life during thermomechanical and incremental forming of steel auxiliary joining elements}, volume={9}, DOI={<a href=\"https://doi.org/10.1016/j.jajp.2024.100185\">10.1016/j.jajp.2024.100185</a>}, number={100185}, journal={Journal of Advanced Joining Processes}, publisher={Elsevier BV}, author={Borgert, Thomas and Nordieker, Ansgar Bernhard and Wiens, Eugen and Homberg, Werner}, year={2024} }","short":"T. Borgert, A.B. Nordieker, E. Wiens, W. Homberg, Journal of Advanced Joining Processes 9 (2024).","ama":"Borgert T, Nordieker AB, Wiens E, Homberg W. Investigations to improve the tool life during thermomechanical and incremental forming of steel auxiliary joining elements. <i>Journal of Advanced Joining Processes</i>. 2024;9. doi:<a href=\"https://doi.org/10.1016/j.jajp.2024.100185\">10.1016/j.jajp.2024.100185</a>","chicago":"Borgert, Thomas, Ansgar Bernhard Nordieker, Eugen Wiens, and Werner Homberg. “Investigations to Improve the Tool Life during Thermomechanical and Incremental Forming of Steel Auxiliary Joining Elements.” <i>Journal of Advanced Joining Processes</i> 9 (2024). <a href=\"https://doi.org/10.1016/j.jajp.2024.100185\">https://doi.org/10.1016/j.jajp.2024.100185</a>.","ieee":"T. Borgert, A. B. Nordieker, E. Wiens, and W. Homberg, “Investigations to improve the tool life during thermomechanical and incremental forming of steel auxiliary joining elements,” <i>Journal of Advanced Joining Processes</i>, vol. 9, Art. no. 100185, 2024, doi: <a href=\"https://doi.org/10.1016/j.jajp.2024.100185\">10.1016/j.jajp.2024.100185</a>.","mla":"Borgert, Thomas, et al. “Investigations to Improve the Tool Life during Thermomechanical and Incremental Forming of Steel Auxiliary Joining Elements.” <i>Journal of Advanced Joining Processes</i>, vol. 9, 100185, Elsevier BV, 2024, doi:<a href=\"https://doi.org/10.1016/j.jajp.2024.100185\">10.1016/j.jajp.2024.100185</a>.","apa":"Borgert, T., Nordieker, A. B., Wiens, E., &#38; Homberg, W. (2024). Investigations to improve the tool life during thermomechanical and incremental forming of steel auxiliary joining elements. <i>Journal of Advanced Joining Processes</i>, <i>9</i>, Article 100185. <a href=\"https://doi.org/10.1016/j.jajp.2024.100185\">https://doi.org/10.1016/j.jajp.2024.100185</a>"},"project":[{"name":"TRR 285 - Project Area C","_id":"133"},{"name":"TRR 285 - Subproject C03","_id":"147"},{"_id":"130","name":"TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten"}],"title":"Investigations to improve the tool life during thermomechanical and incremental forming of steel auxiliary joining elements","year":"2024","publication_identifier":{"issn":["2666-3309"]},"author":[{"id":"83141","full_name":"Borgert, Thomas","last_name":"Borgert","first_name":"Thomas"},{"last_name":"Nordieker","first_name":"Ansgar Bernhard","full_name":"Nordieker, Ansgar Bernhard","id":"88725"},{"last_name":"Wiens","first_name":"Eugen","full_name":"Wiens, Eugen","id":"7888"},{"first_name":"Werner","last_name":"Homberg","full_name":"Homberg, Werner","id":"233"}],"publication_status":"published","date_updated":"2026-05-12T11:56:15Z","intvolume":"         9","article_number":"100185","language":[{"iso":"eng"}],"doi":"10.1016/j.jajp.2024.100185","publication":"Journal of Advanced Joining Processes","date_created":"2024-06-07T09:31:59Z","type":"journal_article","department":[{"_id":"156"}]}]