--- _id: '34211' abstract: - lang: eng text: "Nowadays, clinching is a widely used joining technique, where sheets are joined by pure deformation to create an interlock without the need for auxiliary parts. This leads to advantages such as reduced joining time and manufacturing\r\ncosts. On the other hand, the joint strength solely relies on directed material deformation, which renders an accurate material modelling essential to reliably predict the joint forming. The formation of the joint locally involves large plastic strains and possibly complex non-proportional loading paths, as typical of many metal forming applications. Consequently, a finite plasticity formulation is utilised incorporating a Chaboche–Rousselier kinematic hardening law to capture the Bauschinger effect. Material parameters are identified from tension–compression tests on miniature spec-\r\nimens for the dual-phase steel HCT590X. The resulting material model is implemented in LS-Dyna to study the locally diverse loading paths and give a quantitative statement on the importance of kinematic hardening for clinching. It turns out that the Bauschinger effect mainly affects the springback of the sheets and has a smaller effect on the joint forming itself." author: - first_name: Johannes full_name: Friedlein, Johannes last_name: Friedlein - first_name: Julia full_name: Mergheim, Julia last_name: Mergheim - first_name: Paul full_name: Steinmann, Paul last_name: Steinmann citation: ama: 'Friedlein J, Mergheim J, Steinmann P. Influence of Kinematic Hardening on Clinch Joining of Dual-Phase Steel HCT590X Sheet Metal. In: The Minerals, Metals & Materials Series. Springer International Publishing; 2022. doi:10.1007/978-3-031-06212-4_31' apa: Friedlein, J., Mergheim, J., & Steinmann, P. (2022). Influence of Kinematic Hardening on Clinch Joining of Dual-Phase Steel HCT590X Sheet Metal. In The Minerals, Metals & Materials Series. Springer International Publishing. https://doi.org/10.1007/978-3-031-06212-4_31 bibtex: '@inbook{Friedlein_Mergheim_Steinmann_2022, place={Cham}, title={Influence of Kinematic Hardening on Clinch Joining of Dual-Phase Steel HCT590X Sheet Metal}, DOI={10.1007/978-3-031-06212-4_31}, booktitle={The Minerals, Metals & Materials Series}, publisher={Springer International Publishing}, author={Friedlein, Johannes and Mergheim, Julia and Steinmann, Paul}, year={2022} }' chicago: 'Friedlein, Johannes, Julia Mergheim, and Paul Steinmann. “Influence of Kinematic Hardening on Clinch Joining of Dual-Phase Steel HCT590X Sheet Metal.” In The Minerals, Metals & Materials Series. Cham: Springer International Publishing, 2022. https://doi.org/10.1007/978-3-031-06212-4_31.' ieee: 'J. Friedlein, J. Mergheim, and P. Steinmann, “Influence of Kinematic Hardening on Clinch Joining of Dual-Phase Steel HCT590X Sheet Metal,” in The Minerals, Metals & Materials Series, Cham: Springer International Publishing, 2022.' mla: Friedlein, Johannes, et al. “Influence of Kinematic Hardening on Clinch Joining of Dual-Phase Steel HCT590X Sheet Metal.” The Minerals, Metals & Materials Series, Springer International Publishing, 2022, doi:10.1007/978-3-031-06212-4_31. short: 'J. Friedlein, J. Mergheim, P. Steinmann, in: The Minerals, Metals & Materials Series, Springer International Publishing, Cham, 2022.' date_created: 2022-12-05T21:01:29Z date_updated: 2022-12-05T21:05:52Z doi: 10.1007/978-3-031-06212-4_31 keyword: - Clinching - Material modelling - Kinematic hardening - Parameter identification - Bauschinger effect language: - iso: eng place: Cham project: - _id: '130' grant_number: '418701707' name: 'TRR 285: TRR 285' - _id: '131' name: 'TRR 285 - A: TRR 285 - Project Area A' - _id: '139' name: 'TRR 285 – A05: TRR 285 - Subproject A05' publication: The Minerals, Metals & Materials Series publication_identifier: isbn: - '9783031062117' - '9783031062124' issn: - 2367-1181 - 2367-1696 publication_status: published publisher: Springer International Publishing status: public title: Influence of Kinematic Hardening on Clinch Joining of Dual-Phase Steel HCT590X Sheet Metal type: book_chapter user_id: '7850' year: '2022' ... --- _id: '34212' abstract: - lang: eng text: "Force–displacement measurements and micrograph analyses are commonly used methods to validate numerical models of clinching processes. However, these methods often lead to resetting of elastic deformations and crack-\r\nclosing after unloading. In contrast, the in situ computed tomography (CT) can provide three-dimensional images of the clinch point under loading conditions. In this paper, the potential of the in situ investigation of a clinching process as validation method is analyzed. For the in situ testing, a tailored test set-up featuring a beryllium cylinder for load-bearing and clinching tools made from ultra-high-strength titanium and Si3N4 are used. In the experiments, the clinching of two aluminum sheets is interrupted at specific process steps in order to perform the CT scans. It is shown that in situ CT visualizes the inner geometry of the joint at high precision and that this method is suitable to validate numerical models." author: - first_name: Daniel full_name: Köhler, Daniel last_name: Köhler - first_name: Robert full_name: Kupfer, Robert last_name: Kupfer - first_name: Juliane full_name: Troschitz, Juliane last_name: Troschitz - first_name: Maik full_name: Gude, Maik last_name: Gude citation: ama: 'Köhler D, Kupfer R, Troschitz J, Gude M. Clinching in In Situ CT—A Novel Validation Method for Mechanical Joining Processes. In: The Minerals, Metals & Materials Series. Springer International Publishing; 2022. doi:10.1007/978-3-031-06212-4_75' apa: Köhler, D., Kupfer, R., Troschitz, J., & Gude, M. (2022). Clinching in In Situ CT—A Novel Validation Method for Mechanical Joining Processes. In The Minerals, Metals & Materials Series. Springer International Publishing. https://doi.org/10.1007/978-3-031-06212-4_75 bibtex: '@inbook{Köhler_Kupfer_Troschitz_Gude_2022, place={Cham}, title={Clinching in In Situ CT—A Novel Validation Method for Mechanical Joining Processes}, DOI={10.1007/978-3-031-06212-4_75}, booktitle={The Minerals, Metals & Materials Series}, publisher={Springer International Publishing}, author={Köhler, Daniel and Kupfer, Robert and Troschitz, Juliane and Gude, Maik}, year={2022} }' chicago: 'Köhler, Daniel, Robert Kupfer, Juliane Troschitz, and Maik Gude. “Clinching in In Situ CT—A Novel Validation Method for Mechanical Joining Processes.” In The Minerals, Metals & Materials Series. Cham: Springer International Publishing, 2022. https://doi.org/10.1007/978-3-031-06212-4_75.' ieee: 'D. Köhler, R. Kupfer, J. Troschitz, and M. Gude, “Clinching in In Situ CT—A Novel Validation Method for Mechanical Joining Processes,” in The Minerals, Metals & Materials Series, Cham: Springer International Publishing, 2022.' mla: Köhler, Daniel, et al. “Clinching in In Situ CT—A Novel Validation Method for Mechanical Joining Processes.” The Minerals, Metals & Materials Series, Springer International Publishing, 2022, doi:10.1007/978-3-031-06212-4_75. short: 'D. Köhler, R. Kupfer, J. Troschitz, M. Gude, in: The Minerals, Metals & Materials Series, Springer International Publishing, Cham, 2022.' date_created: 2022-12-05T21:06:21Z date_updated: 2022-12-05T21:11:47Z doi: 10.1007/978-3-031-06212-4_75 keyword: - Clinching - Non-destructive testing - Computed tomography - In situ CT language: - iso: eng place: Cham project: - _id: '130' grant_number: '418701707' name: 'TRR 285: TRR 285' - _id: '133' name: 'TRR 285 - C: TRR 285 - Project Area C' - _id: '148' name: 'TRR 285 – C04: TRR 285 - Subproject C04' publication: The Minerals, Metals & Materials Series publication_identifier: isbn: - '9783031062117' - '9783031062124' issn: - 2367-1181 - 2367-1696 publication_status: published publisher: Springer International Publishing status: public title: Clinching in In Situ CT—A Novel Validation Method for Mechanical Joining Processes type: book_chapter user_id: '7850' year: '2022' ... --- _id: '33728' author: - first_name: C. R. full_name: Bielak, C. R. last_name: Bielak - first_name: M. full_name: Böhnke, M. last_name: Böhnke - first_name: M. full_name: Bobbert, M. last_name: Bobbert - first_name: G. full_name: Meschut, G. last_name: Meschut citation: ama: 'Bielak CR, Böhnke M, Bobbert M, Meschut G. Development of a Numerical 3D Model for Analyzing Clinched Joints in Versatile Process Chains. In: The Minerals, Metals & Materials Series. Springer International Publishing; 2022. doi:10.1007/978-3-031-06212-4_15' apa: Bielak, C. R., Böhnke, M., Bobbert, M., & Meschut, G. (2022). Development of a Numerical 3D Model for Analyzing Clinched Joints in Versatile Process Chains. In The Minerals, Metals & Materials Series. Springer International Publishing. https://doi.org/10.1007/978-3-031-06212-4_15 bibtex: '@inbook{Bielak_Böhnke_Bobbert_Meschut_2022, place={Cham}, title={Development of a Numerical 3D Model for Analyzing Clinched Joints in Versatile Process Chains}, DOI={10.1007/978-3-031-06212-4_15}, booktitle={The Minerals, Metals & Materials Series}, publisher={Springer International Publishing}, author={Bielak, C. R. and Böhnke, M. and Bobbert, M. and Meschut, G.}, year={2022} }' chicago: 'Bielak, C. R., M. Böhnke, M. Bobbert, and G. Meschut. “Development of a Numerical 3D Model for Analyzing Clinched Joints in Versatile Process Chains.” In The Minerals, Metals & Materials Series. Cham: Springer International Publishing, 2022. https://doi.org/10.1007/978-3-031-06212-4_15.' ieee: 'C. R. Bielak, M. Böhnke, M. Bobbert, and G. Meschut, “Development of a Numerical 3D Model for Analyzing Clinched Joints in Versatile Process Chains,” in The Minerals, Metals & Materials Series, Cham: Springer International Publishing, 2022.' mla: Bielak, C. R., et al. “Development of a Numerical 3D Model for Analyzing Clinched Joints in Versatile Process Chains.” The Minerals, Metals & Materials Series, Springer International Publishing, 2022, doi:10.1007/978-3-031-06212-4_15. short: 'C.R. Bielak, M. Böhnke, M. Bobbert, G. Meschut, in: The Minerals, Metals & Materials Series, Springer International Publishing, Cham, 2022.' date_created: 2022-10-14T14:24:39Z date_updated: 2022-10-14T14:34:17Z department: - _id: '157' doi: 10.1007/978-3-031-06212-4_15 place: Cham publication: The Minerals, Metals & Materials Series publication_identifier: isbn: - '9783031062117' - '9783031062124' issn: - 2367-1181 - 2367-1696 publication_status: published publisher: Springer International Publishing status: public title: Development of a Numerical 3D Model for Analyzing Clinched Joints in Versatile Process Chains type: book_chapter user_id: '34782' year: '2022' ... --- _id: '33003' author: - first_name: Max full_name: Böhnke, Max id: '45779' last_name: Böhnke - first_name: Christian Roman full_name: Bielak, Christian Roman id: '34782' last_name: Bielak - first_name: Mathias full_name: Bobbert, Mathias id: '7850' last_name: Bobbert - first_name: Gerson full_name: Meschut, Gerson id: '32056' last_name: Meschut orcid: 0000-0002-2763-1246 citation: ama: 'Böhnke M, Bielak CR, Bobbert M, Meschut G. Development of a Modified Punch Test for Investigating the Failure Behavior in Sheet Metal Materials. In: The Minerals, Metals & Materials Series. Springer International Publishing; 2022. doi:10.1007/978-3-031-06212-4_52' apa: Böhnke, M., Bielak, C. R., Bobbert, M., & Meschut, G. (2022). Development of a Modified Punch Test for Investigating the Failure Behavior in Sheet Metal Materials. In The Minerals, Metals & Materials Series. NUMISHEET 2022, Toronto, Kanada. Springer International Publishing. https://doi.org/10.1007/978-3-031-06212-4_52 bibtex: '@inbook{Böhnke_Bielak_Bobbert_Meschut_2022, place={Cham}, title={Development of a Modified Punch Test for Investigating the Failure Behavior in Sheet Metal Materials}, DOI={10.1007/978-3-031-06212-4_52}, booktitle={The Minerals, Metals & Materials Series}, publisher={Springer International Publishing}, author={Böhnke, Max and Bielak, Christian Roman and Bobbert, Mathias and Meschut, Gerson}, year={2022} }' chicago: 'Böhnke, Max, Christian Roman Bielak, Mathias Bobbert, and Gerson Meschut. “Development of a Modified Punch Test for Investigating the Failure Behavior in Sheet Metal Materials.” In The Minerals, Metals & Materials Series. Cham: Springer International Publishing, 2022. https://doi.org/10.1007/978-3-031-06212-4_52.' ieee: 'M. Böhnke, C. R. Bielak, M. Bobbert, and G. Meschut, “Development of a Modified Punch Test for Investigating the Failure Behavior in Sheet Metal Materials,” in The Minerals, Metals & Materials Series, Cham: Springer International Publishing, 2022.' mla: Böhnke, Max, et al. “Development of a Modified Punch Test for Investigating the Failure Behavior in Sheet Metal Materials.” The Minerals, Metals & Materials Series, Springer International Publishing, 2022, doi:10.1007/978-3-031-06212-4_52. short: 'M. Böhnke, C.R. Bielak, M. Bobbert, G. Meschut, in: The Minerals, Metals & Materials Series, Springer International Publishing, Cham, 2022.' conference: location: Toronto, Kanada name: NUMISHEET 2022 date_created: 2022-08-18T09:38:39Z date_updated: 2023-01-17T09:03:25Z department: - _id: '157' - _id: '630' doi: 10.1007/978-3-031-06212-4_52 language: - iso: eng place: Cham project: - _id: '130' grant_number: '418701707' name: 'TRR 285: TRR 285' - _id: '131' name: 'TRR 285 - A: TRR 285 - Project Area A' - _id: '135' name: 'TRR 285 – A01: TRR 285 - Subproject A01' publication: The Minerals, Metals & Materials Series publication_identifier: isbn: - '9783031062117' - '9783031062124' issn: - 2367-1181 - 2367-1696 publication_status: published publisher: Springer International Publishing quality_controlled: '1' status: public title: Development of a Modified Punch Test for Investigating the Failure Behavior in Sheet Metal Materials type: book_chapter user_id: '45779' year: '2022' ... --- _id: '34210' abstract: - lang: eng text: The application of the mechanical joining process clinching enables the joining of sheet metals with a wide range of material-thickness configurations, which is of interest in lightweight construction of multi-material structures. Each material-thickness combination results in a joint with its own property profile that is affected differently by variations. Manufacturing process-related effects from preforming steps influence the geometric shape of a clinched joint as well as its load-bearing capacity. During the clinching process high degrees of plastic strain, increased temperatures and high strain rates occur. In this context, a 3D numerical model was developed which can represent the material-specific behaviour during the process chain steps sheet metal forming, joining, and loading phase in order to achieve a high predictive accuracy of the simulation. Besides to the investigation of the prediction accuracy, the extent of the influence of individual modelling aspects such as temperature and strain rate dependency is examined. author: - first_name: Christian Roman full_name: Bielak, Christian Roman id: '34782' last_name: Bielak - first_name: Max full_name: Böhnke, Max id: '45779' last_name: Böhnke - first_name: Mathias full_name: Bobbert, Mathias id: '7850' last_name: Bobbert - first_name: Gerson full_name: Meschut, Gerson id: '32056' last_name: Meschut orcid: 0000-0002-2763-1246 citation: ama: 'Bielak CR, Böhnke M, Bobbert M, Meschut G. Development of a Numerical 3D Model for Analyzing Clinched Joints in Versatile Process Chains. In: The Minerals, Metals & Materials Series. Springer International Publishing; 2022. doi:10.1007/978-3-031-06212-4_15' apa: Bielak, C. R., Böhnke, M., Bobbert, M., & Meschut, G. (2022). Development of a Numerical 3D Model for Analyzing Clinched Joints in Versatile Process Chains. In The Minerals, Metals & Materials Series. Springer International Publishing. https://doi.org/10.1007/978-3-031-06212-4_15 bibtex: '@inbook{Bielak_Böhnke_Bobbert_Meschut_2022, place={Cham}, title={Development of a Numerical 3D Model for Analyzing Clinched Joints in Versatile Process Chains}, DOI={10.1007/978-3-031-06212-4_15}, booktitle={The Minerals, Metals & Materials Series}, publisher={Springer International Publishing}, author={Bielak, Christian Roman and Böhnke, Max and Bobbert, Mathias and Meschut, Gerson}, year={2022} }' chicago: 'Bielak, Christian Roman, Max Böhnke, Mathias Bobbert, and Gerson Meschut. “Development of a Numerical 3D Model for Analyzing Clinched Joints in Versatile Process Chains.” In The Minerals, Metals & Materials Series. Cham: Springer International Publishing, 2022. https://doi.org/10.1007/978-3-031-06212-4_15.' ieee: 'C. R. Bielak, M. Böhnke, M. Bobbert, and G. Meschut, “Development of a Numerical 3D Model for Analyzing Clinched Joints in Versatile Process Chains,” in The Minerals, Metals & Materials Series, Cham: Springer International Publishing, 2022.' mla: Bielak, Christian Roman, et al. “Development of a Numerical 3D Model for Analyzing Clinched Joints in Versatile Process Chains.” The Minerals, Metals & Materials Series, Springer International Publishing, 2022, doi:10.1007/978-3-031-06212-4_15. short: 'C.R. Bielak, M. Böhnke, M. Bobbert, G. Meschut, in: The Minerals, Metals & Materials Series, Springer International Publishing, Cham, 2022.' date_created: 2022-12-05T20:56:01Z date_updated: 2023-04-27T11:21:52Z doi: 10.1007/978-3-031-06212-4_15 language: - iso: eng place: Cham popular_science: '1' project: - _id: '130' grant_number: '418701707' name: 'TRR 285: TRR 285' - _id: '131' name: 'TRR 285 - A: TRR 285 - Project Area A' - _id: '135' name: 'TRR 285 – A01: TRR 285 - Subproject A01' publication: The Minerals, Metals & Materials Series publication_identifier: isbn: - '9783031062117' - '9783031062124' issn: - 2367-1181 - 2367-1696 publication_status: published publisher: Springer International Publishing quality_controlled: '1' status: public title: Development of a Numerical 3D Model for Analyzing Clinched Joints in Versatile Process Chains type: book_chapter user_id: '34782' year: '2022' ... --- _id: '51195' author: - first_name: Daniel full_name: Köhler, Daniel last_name: Köhler - first_name: Robert full_name: Kupfer, Robert last_name: Kupfer - first_name: Juliane full_name: Troschitz, Juliane last_name: Troschitz - first_name: Maik full_name: Gude, Maik last_name: Gude citation: ama: 'Köhler D, Kupfer R, Troschitz J, Gude M. Clinching in In Situ CT—A Novel Validation Method for Mechanical Joining Processes. In: The Minerals, Metals & Materials Series. Springer International Publishing; 2022. doi:10.1007/978-3-031-06212-4_75' apa: Köhler, D., Kupfer, R., Troschitz, J., & Gude, M. (2022). Clinching in In Situ CT—A Novel Validation Method for Mechanical Joining Processes. In The Minerals, Metals & Materials Series. Springer International Publishing. https://doi.org/10.1007/978-3-031-06212-4_75 bibtex: '@inbook{Köhler_Kupfer_Troschitz_Gude_2022, place={Cham}, title={Clinching in In Situ CT—A Novel Validation Method for Mechanical Joining Processes}, DOI={10.1007/978-3-031-06212-4_75}, booktitle={The Minerals, Metals & Materials Series}, publisher={Springer International Publishing}, author={Köhler, Daniel and Kupfer, Robert and Troschitz, Juliane and Gude, Maik}, year={2022} }' chicago: 'Köhler, Daniel, Robert Kupfer, Juliane Troschitz, and Maik Gude. “Clinching in In Situ CT—A Novel Validation Method for Mechanical Joining Processes.” In The Minerals, Metals & Materials Series. Cham: Springer International Publishing, 2022. https://doi.org/10.1007/978-3-031-06212-4_75.' ieee: 'D. Köhler, R. Kupfer, J. Troschitz, and M. Gude, “Clinching in In Situ CT—A Novel Validation Method for Mechanical Joining Processes,” in The Minerals, Metals & Materials Series, Cham: Springer International Publishing, 2022.' mla: Köhler, Daniel, et al. “Clinching in In Situ CT—A Novel Validation Method for Mechanical Joining Processes.” The Minerals, Metals & Materials Series, Springer International Publishing, 2022, doi:10.1007/978-3-031-06212-4_75. short: 'D. Köhler, R. Kupfer, J. Troschitz, M. Gude, in: The Minerals, Metals & Materials Series, Springer International Publishing, Cham, 2022.' date_created: 2024-02-06T15:03:22Z date_updated: 2024-02-06T15:19:29Z department: - _id: '157' doi: 10.1007/978-3-031-06212-4_75 language: - iso: eng place: Cham project: - _id: '130' grant_number: '418701707' name: 'TRR 285: TRR 285' - _id: '133' name: 'TRR 285 - C: TRR 285 - Project Area C' - _id: '148' name: 'TRR 285 – C04: TRR 285 - Subproject C04' publication: The Minerals, Metals & Materials Series publication_identifier: isbn: - '9783031062117' - '9783031062124' issn: - 2367-1181 - 2367-1696 publication_status: published publisher: Springer International Publishing status: public title: Clinching in In Situ CT—A Novel Validation Method for Mechanical Joining Processes type: book_chapter user_id: '83408' year: '2022' ...