[{"quality_controlled":"1","publication_identifier":{"issn":["0944-6524","1863-7353"]},"publication_status":"published","citation":{"bibtex":"@article{Zirngibl_Kügler_Popp_Bielak_Bobbert_Drummer_Meschut_Wartzack_Schleich_2022, title={Provision of cross-domain knowledge in mechanical joining using ontologies}, DOI={10.1007/s11740-022-01117-y}, journal={Production Engineering}, publisher={Springer Science and Business Media LLC}, author={Zirngibl, Christoph and Kügler, Patricia and Popp, Julian and Bielak, Christian Roman and Bobbert, Mathias and Drummer, Dietmar and Meschut, Gerson and Wartzack, Sandro and Schleich, Benjamin}, year={2022} }","short":"C. Zirngibl, P. Kügler, J. Popp, C.R. Bielak, M. Bobbert, D. Drummer, G. Meschut, S. Wartzack, B. Schleich, Production Engineering (2022).","mla":"Zirngibl, Christoph, et al. “Provision of Cross-Domain Knowledge in Mechanical Joining Using Ontologies.” Production Engineering, Springer Science and Business Media LLC, 2022, doi:10.1007/s11740-022-01117-y.","apa":"Zirngibl, C., Kügler, P., Popp, J., Bielak, C. R., Bobbert, M., Drummer, D., Meschut, G., Wartzack, S., & Schleich, B. (2022). Provision of cross-domain knowledge in mechanical joining using ontologies. Production Engineering. https://doi.org/10.1007/s11740-022-01117-y","ieee":"C. Zirngibl et al., “Provision of cross-domain knowledge in mechanical joining using ontologies,” Production Engineering, 2022, doi: 10.1007/s11740-022-01117-y.","chicago":"Zirngibl, Christoph, Patricia Kügler, Julian Popp, Christian Roman Bielak, Mathias Bobbert, Dietmar Drummer, Gerson Meschut, Sandro Wartzack, and Benjamin Schleich. “Provision of Cross-Domain Knowledge in Mechanical Joining Using Ontologies.” Production Engineering, 2022. https://doi.org/10.1007/s11740-022-01117-y.","ama":"Zirngibl C, Kügler P, Popp J, et al. Provision of cross-domain knowledge in mechanical joining using ontologies. Production Engineering. Published online 2022. doi:10.1007/s11740-022-01117-y"},"year":"2022","author":[{"last_name":"Zirngibl","full_name":"Zirngibl, Christoph","first_name":"Christoph"},{"full_name":"Kügler, Patricia","last_name":"Kügler","first_name":"Patricia"},{"first_name":"Julian","last_name":"Popp","full_name":"Popp, Julian"},{"first_name":"Christian Roman","last_name":"Bielak","full_name":"Bielak, Christian Roman","id":"34782"},{"last_name":"Bobbert","full_name":"Bobbert, Mathias","id":"7850","first_name":"Mathias"},{"first_name":"Dietmar","full_name":"Drummer, Dietmar","last_name":"Drummer"},{"first_name":"Gerson","orcid":"0000-0002-2763-1246","last_name":"Meschut","id":"32056","full_name":"Meschut, Gerson"},{"first_name":"Sandro","last_name":"Wartzack","full_name":"Wartzack, Sandro"},{"full_name":"Schleich, Benjamin","last_name":"Schleich","first_name":"Benjamin"}],"date_created":"2022-02-25T07:19:45Z","date_updated":"2023-04-27T07:42:19Z","publisher":"Springer Science and Business Media LLC","doi":"10.1007/s11740-022-01117-y","title":"Provision of cross-domain knowledge in mechanical joining using ontologies","publication":"Production Engineering","type":"journal_article","status":"public","abstract":[{"lang":"eng","text":"Since the application of mechanical joining methods, such as clinching or riveting, offers a robust solution for the generation of advanced multi-material connections, the use in the field of lightweight designs (e.g. automotive industry) is steadily increasing. Therefore, not only the design of an individual joint is required but also the dimensioning of the entire joining connection is crucial. However, in comparison to thermal joining techniques, such as spot welding, the evaluation of the joints’ resistance against defined requirements (e.g. types of load, minimal amount of load cycles) mainly relies on the consideration of expert knowledge, a few design principles and a small amount of experimental data. Since this generally implies the involvement of several domains, such as the material characterization or the part design, a tremendous amount of data and knowledge is separately generated for a certain dimensioning process. Nevertheless, the lack of formalization and standardization in representing the gained knowledge leads to a difficult and inconsistent reuse, sharing or searching of already existing information. Thus, this contribution presents a specific ontology for the provision of cross-domain knowledge about mechanical joining processes and highlights two potential use cases of this ontology in the design of clinched and pin joints."}],"department":[{"_id":"157"}],"user_id":"7850","_id":"30100","project":[{"_id":"130","name":"TRR 285: TRR 285","grant_number":"418701707"},{"name":"TRR 285 - B: TRR 285 - Project Area B","_id":"132"},{"_id":"144","name":"TRR 285 – B05: TRR 285 - Subproject B05"},{"name":"TRR 285 - C: TRR 285 - Project Area C","_id":"133"},{"_id":"145","name":"TRR 285 – C01: TRR 285 - Subproject C01"},{"name":"TRR 285 - A: TRR 285 - Project Area A","_id":"131"},{"name":"TRR 285 – A01: TRR 285 - Subproject A01","_id":"135"}],"language":[{"iso":"eng"}],"keyword":["Industrial and Manufacturing Engineering","Mechanical Engineering"]},{"citation":{"ieee":"F. Kappe, S. Wituschek, V. de Pascalis, M. Bobbert, M. Lechner, and G. Meschut, “Numerical Investigation of the Influence of a Movable Die Base on Joint Formation in Semi-tubular Self-piercing Riveting,” in Materials Design and Applications IV, Cham: Springer International Publishing, 2022.","chicago":"Kappe, Fabian, Simon Wituschek, Vincenzo de Pascalis, Mathias Bobbert, Michael Lechner, and Gerson Meschut. “Numerical Investigation of the Influence of a Movable Die Base on Joint Formation in Semi-Tubular Self-Piercing Riveting.” In Materials Design and Applications IV. Cham: Springer International Publishing, 2022. https://doi.org/10.1007/978-3-031-18130-6_10.","ama":"Kappe F, Wituschek S, de Pascalis V, Bobbert M, Lechner M, Meschut G. Numerical Investigation of the Influence of a Movable Die Base on Joint Formation in Semi-tubular Self-piercing Riveting. In: Materials Design and Applications IV. Springer International Publishing; 2022. doi:10.1007/978-3-031-18130-6_10","bibtex":"@inbook{Kappe_Wituschek_de Pascalis_Bobbert_Lechner_Meschut_2022, place={Cham}, title={Numerical Investigation of the Influence of a Movable Die Base on Joint Formation in Semi-tubular Self-piercing Riveting}, DOI={10.1007/978-3-031-18130-6_10}, booktitle={Materials Design and Applications IV}, publisher={Springer International Publishing}, author={Kappe, Fabian and Wituschek, Simon and de Pascalis, Vincenzo and Bobbert, Mathias and Lechner, Michael and Meschut, Gerson}, year={2022} }","short":"F. Kappe, S. Wituschek, V. de Pascalis, M. Bobbert, M. Lechner, G. Meschut, in: Materials Design and Applications IV, Springer International Publishing, Cham, 2022.","mla":"Kappe, Fabian, et al. “Numerical Investigation of the Influence of a Movable Die Base on Joint Formation in Semi-Tubular Self-Piercing Riveting.” Materials Design and Applications IV, Springer International Publishing, 2022, doi:10.1007/978-3-031-18130-6_10.","apa":"Kappe, F., Wituschek, S., de Pascalis, V., Bobbert, M., Lechner, M., & Meschut, G. (2022). Numerical Investigation of the Influence of a Movable Die Base on Joint Formation in Semi-tubular Self-piercing Riveting. In Materials Design and Applications IV. Springer International Publishing. https://doi.org/10.1007/978-3-031-18130-6_10"},"place":"Cham","year":"2022","publication_status":"published","quality_controlled":"1","publication_identifier":{"issn":["1869-8433","1869-8441"],"isbn":["9783031181290","9783031181306"]},"doi":"10.1007/978-3-031-18130-6_10","title":"Numerical Investigation of the Influence of a Movable Die Base on Joint Formation in Semi-tubular Self-piercing Riveting","author":[{"id":"66459","full_name":"Kappe, Fabian","last_name":"Kappe","first_name":"Fabian"},{"full_name":"Wituschek, Simon","last_name":"Wituschek","first_name":"Simon"},{"first_name":"Vincenzo","full_name":"de Pascalis, Vincenzo","last_name":"de Pascalis"},{"last_name":"Bobbert","full_name":"Bobbert, Mathias","id":"7850","first_name":"Mathias"},{"first_name":"Michael","full_name":"Lechner, Michael","last_name":"Lechner"},{"id":"32056","full_name":"Meschut, Gerson","last_name":"Meschut","orcid":"0000-0002-2763-1246","first_name":"Gerson"}],"date_created":"2022-12-07T15:21:45Z","date_updated":"2023-04-27T08:53:09Z","publisher":"Springer International Publishing","status":"public","abstract":[{"text":"Due to economic and ecological requirements and the associated trend towards lightweight construction, mechanical joining technologies like self-piercing riveting are gaining in importance. In addition, the increase in lightweight multi-material joints has led to the development of many different mechanical joining technologies which can only be applied to join a small number of material combinations. This leads to low process efficiency, and in the case of self-piercing riveting, to a large number of required tool changes. Another approach focuses on reacting to changing boundary conditions as well as the creation of customised joints by using adaptive tools, versatile auxiliary joining parts or modified process kinematics. Therefore, this study investigates the influence of increased die-sided kinematics on joint formation in self-piercing riveting process. The aim is to achieve an improvement of the joint properties by superimposing the punch feed. Furthermore, it is intended to reduce required tool changes due to the improved joint design. The investigations were carried out by means of a 2D-axisymmetric numerical simulation model using the LS-Dyna simulation software. After the validation of the process model, the die was extended to include driven die elements. Using the model, different kinematics as well as their effects on the joint formation and the internal stress concentration could be analysed. In principle, the increased actuator technology enabled an increase of the interlock formation for both pure aluminium and multi-material joints consisting of steel and aluminium. However, the resulting process forces were higher during the process phases of punching and spreading.","lang":"eng"}],"type":"book_chapter","publication":"Materials Design and Applications IV","language":[{"iso":"eng"}],"user_id":"66459","department":[{"_id":"630"},{"_id":"157"}],"project":[{"grant_number":"418701707","name":"TRR 285: TRR 285","_id":"130"},{"_id":"133","name":"TRR 285 - C: TRR 285 - Project Area C"},{"_id":"146","name":"TRR 285 – C02: TRR 285 - Subproject C02"}],"_id":"34275"},{"title":"Determining the influence of different process parameters on the versatile self-piercing riveting process using numerical methods","doi":"10.1016/j.jmapro.2022.11.019","publisher":"Elsevier BV","date_updated":"2023-04-27T08:53:36Z","author":[{"last_name":"Kappe","full_name":"Kappe, Fabian","first_name":"Fabian"},{"first_name":"Christoph","full_name":"Zirngibl, Christoph","last_name":"Zirngibl"},{"first_name":"Benjamin","full_name":"Schleich, Benjamin","last_name":"Schleich"},{"last_name":"Bobbert","full_name":"Bobbert, Mathias","first_name":"Mathias"},{"first_name":"Sandro","full_name":"Wartzack, Sandro","last_name":"Wartzack"},{"first_name":"Gerson","last_name":"Meschut","full_name":"Meschut, Gerson"}],"date_created":"2022-12-06T13:57:46Z","volume":84,"year":"2022","citation":{"chicago":"Kappe, Fabian, Christoph Zirngibl, Benjamin Schleich, Mathias Bobbert, Sandro Wartzack, and Gerson Meschut. “Determining the Influence of Different Process Parameters on the Versatile Self-Piercing Riveting Process Using Numerical Methods.” Journal of Manufacturing Processes 84 (2022): 1438–48. https://doi.org/10.1016/j.jmapro.2022.11.019.","ieee":"F. Kappe, C. Zirngibl, B. Schleich, M. Bobbert, S. Wartzack, and G. Meschut, “Determining the influence of different process parameters on the versatile self-piercing riveting process using numerical methods,” Journal of Manufacturing Processes, vol. 84, pp. 1438–1448, 2022, doi: 10.1016/j.jmapro.2022.11.019.","ama":"Kappe F, Zirngibl C, Schleich B, Bobbert M, Wartzack S, Meschut G. Determining the influence of different process parameters on the versatile self-piercing riveting process using numerical methods. Journal of Manufacturing Processes. 2022;84:1438-1448. doi:10.1016/j.jmapro.2022.11.019","apa":"Kappe, F., Zirngibl, C., Schleich, B., Bobbert, M., Wartzack, S., & Meschut, G. (2022). Determining the influence of different process parameters on the versatile self-piercing riveting process using numerical methods. Journal of Manufacturing Processes, 84, 1438–1448. https://doi.org/10.1016/j.jmapro.2022.11.019","short":"F. Kappe, C. Zirngibl, B. Schleich, M. Bobbert, S. Wartzack, G. Meschut, Journal of Manufacturing Processes 84 (2022) 1438–1448.","bibtex":"@article{Kappe_Zirngibl_Schleich_Bobbert_Wartzack_Meschut_2022, title={Determining the influence of different process parameters on the versatile self-piercing riveting process using numerical methods}, volume={84}, DOI={10.1016/j.jmapro.2022.11.019}, journal={Journal of Manufacturing Processes}, publisher={Elsevier BV}, author={Kappe, Fabian and Zirngibl, Christoph and Schleich, Benjamin and Bobbert, Mathias and Wartzack, Sandro and Meschut, Gerson}, year={2022}, pages={1438–1448} }","mla":"Kappe, Fabian, et al. “Determining the Influence of Different Process Parameters on the Versatile Self-Piercing Riveting Process Using Numerical Methods.” Journal of Manufacturing Processes, vol. 84, Elsevier BV, 2022, pp. 1438–48, doi:10.1016/j.jmapro.2022.11.019."},"page":"1438-1448","intvolume":" 84","publication_status":"published","publication_identifier":{"issn":["1526-6125"]},"quality_controlled":"1","keyword":["Industrial and Manufacturing Engineering","Management Science and Operations Research","Strategy and Management"],"language":[{"iso":"eng"}],"project":[{"grant_number":"418701707","name":"TRR 285: TRR 285","_id":"130"},{"name":"TRR 285 - C: TRR 285 - Project Area C","_id":"133"},{"_id":"146","name":"TRR 285 – C02: TRR 285 - Subproject C02"},{"name":"TRR 285 - B: TRR 285 - Project Area B","_id":"132"},{"_id":"144","name":"TRR 285 – B05: TRR 285 - Subproject B05"}],"_id":"34244","user_id":"66459","department":[{"_id":"157"},{"_id":"630"}],"status":"public","type":"journal_article","publication":"Journal of Manufacturing Processes"},{"language":[{"iso":"eng"}],"user_id":"66459","department":[{"_id":"157"},{"_id":"630"}],"project":[{"grant_number":"418701707","_id":"130","name":"TRR 285: TRR 285"},{"_id":"133","name":"TRR 285 - C: TRR 285 - Project Area C"},{"_id":"146","name":"TRR 285 – C02: TRR 285 - Subproject C02"}],"_id":"29858","status":"public","type":"journal_article","publication":"Proceedings of the Institution of Mechanical Engineers Part L Journal of Materials Design and Applications","doi":"10.1177/14644207211070992","title":"Increasing flexibility of self-piercing riveting by reducing tool–geometry combinations using cluster analysis in the application of multi-material design","author":[{"last_name":"Kappe","id":"66459","full_name":"Kappe, Fabian","first_name":"Fabian"},{"last_name":"Schadow","full_name":"Schadow, Luca","first_name":"Luca"},{"id":"7850","full_name":"Bobbert, Mathias","last_name":"Bobbert","first_name":"Mathias"},{"id":"32056","full_name":"Meschut, Gerson","orcid":"0000-0002-2763-1246","last_name":"Meschut","first_name":"Gerson"}],"date_created":"2022-02-16T09:50:09Z","date_updated":"2023-04-27T08:54:33Z","citation":{"short":"F. Kappe, L. Schadow, M. Bobbert, G. Meschut, Proceedings of the Institution of Mechanical Engineers Part L Journal of Materials Design and Applications (2022).","mla":"Kappe, Fabian, et al. “Increasing Flexibility of Self-Piercing Riveting by Reducing Tool–Geometry Combinations Using Cluster Analysis in the Application of Multi-Material Design.” Proceedings of the Institution of Mechanical Engineers Part L Journal of Materials Design and Applications, 2022, doi:10.1177/14644207211070992.","bibtex":"@article{Kappe_Schadow_Bobbert_Meschut_2022, title={Increasing flexibility of self-piercing riveting by reducing tool–geometry combinations using cluster analysis in the application of multi-material design}, DOI={10.1177/14644207211070992}, journal={Proceedings of the Institution of Mechanical Engineers Part L Journal of Materials Design and Applications}, author={Kappe, Fabian and Schadow, Luca and Bobbert, Mathias and Meschut, Gerson}, year={2022} }","apa":"Kappe, F., Schadow, L., Bobbert, M., & Meschut, G. (2022). Increasing flexibility of self-piercing riveting by reducing tool–geometry combinations using cluster analysis in the application of multi-material design. Proceedings of the Institution of Mechanical Engineers Part L Journal of Materials Design and Applications. https://doi.org/10.1177/14644207211070992","chicago":"Kappe, Fabian, Luca Schadow, Mathias Bobbert, and Gerson Meschut. “Increasing Flexibility of Self-Piercing Riveting by Reducing Tool–Geometry Combinations Using Cluster Analysis in the Application of Multi-Material Design.” Proceedings of the Institution of Mechanical Engineers Part L Journal of Materials Design and Applications, 2022. https://doi.org/10.1177/14644207211070992.","ieee":"F. Kappe, L. Schadow, M. Bobbert, and G. Meschut, “Increasing flexibility of self-piercing riveting by reducing tool–geometry combinations using cluster analysis in the application of multi-material design,” Proceedings of the Institution of Mechanical Engineers Part L Journal of Materials Design and Applications, 2022, doi: 10.1177/14644207211070992.","ama":"Kappe F, Schadow L, Bobbert M, Meschut G. Increasing flexibility of self-piercing riveting by reducing tool–geometry combinations using cluster analysis in the application of multi-material design. Proceedings of the Institution of Mechanical Engineers Part L Journal of Materials Design and Applications. Published online 2022. doi:10.1177/14644207211070992"},"year":"2022","quality_controlled":"1"},{"status":"public","publication":"Production Engineering","type":"journal_article","language":[{"iso":"eng"}],"department":[{"_id":"157"},{"_id":"630"}],"user_id":"66459","_id":"29857","project":[{"_id":"130","name":"TRR 285: TRR 285","grant_number":"418701707"},{"name":"TRR 285 - C: TRR 285 - Project Area C","_id":"133"},{"_id":"146","name":"TRR 285 – C02: TRR 285 - Subproject C02"}],"citation":{"ieee":"F. Kappe, S. Wituschek, M. Bobbert, and G. Meschut, “Determining the properties of multi‑range semi‑tubular self‑piercing riveted joints,” Production Engineering, 2022, doi: https://doi.org/10.1007/s11740-022-01105-2.","chicago":"Kappe, Fabian, Simon Wituschek, Mathias Bobbert, and Gerson Meschut. “Determining the Properties of Multi‑range Semi‑tubular Self‑piercing Riveted Joints.” Production Engineering, 2022. https://doi.org/10.1007/s11740-022-01105-2.","ama":"Kappe F, Wituschek S, Bobbert M, Meschut G. Determining the properties of multi‑range semi‑tubular self‑piercing riveted joints. Production Engineering. Published online 2022. doi:https://doi.org/10.1007/s11740-022-01105-2","apa":"Kappe, F., Wituschek, S., Bobbert, M., & Meschut, G. (2022). Determining the properties of multi‑range semi‑tubular self‑piercing riveted joints. Production Engineering. https://doi.org/10.1007/s11740-022-01105-2","bibtex":"@article{Kappe_Wituschek_Bobbert_Meschut_2022, title={Determining the properties of multi‑range semi‑tubular self‑piercing riveted joints}, DOI={https://doi.org/10.1007/s11740-022-01105-2}, journal={Production Engineering}, author={Kappe, Fabian and Wituschek, Simon and Bobbert, Mathias and Meschut, Gerson}, year={2022} }","mla":"Kappe, Fabian, et al. “Determining the Properties of Multi‑range Semi‑tubular Self‑piercing Riveted Joints.” Production Engineering, 2022, doi:https://doi.org/10.1007/s11740-022-01105-2.","short":"F. Kappe, S. Wituschek, M. Bobbert, G. Meschut, Production Engineering (2022)."},"year":"2022","quality_controlled":"1","doi":"https://doi.org/10.1007/s11740-022-01105-2","title":"Determining the properties of multi‑range semi‑tubular self‑piercing riveted joints","date_created":"2022-02-16T09:47:02Z","author":[{"first_name":"Fabian","full_name":"Kappe, Fabian","id":"66459","last_name":"Kappe"},{"first_name":"Simon","last_name":"Wituschek","full_name":"Wituschek, Simon"},{"id":"7850","full_name":"Bobbert, Mathias","last_name":"Bobbert","first_name":"Mathias"},{"first_name":"Gerson","orcid":"0000-0002-2763-1246","last_name":"Meschut","full_name":"Meschut, Gerson","id":"32056"}],"date_updated":"2023-04-27T08:54:21Z"},{"volume":64,"author":[{"first_name":"Britta","last_name":"Schramm","full_name":"Schramm, Britta","id":"4668"},{"first_name":"Deborah","id":"45673","full_name":"Weiß, Deborah","last_name":"Weiß"}],"date_updated":"2023-04-27T10:20:38Z","doi":"10.1515/mt-2022-0191","publication_identifier":{"issn":["0025-5300","2195-8572"]},"publication_status":"published","intvolume":" 64","page":"1437-1449","citation":{"ama":"Schramm B, Weiß D. Fracture mechanical evaluation of the material HCT590X. Materials Testing. 2022;64(10):1437-1449. doi:10.1515/mt-2022-0191","ieee":"B. Schramm and D. Weiß, “Fracture mechanical evaluation of the material HCT590X,” Materials Testing, vol. 64, no. 10, pp. 1437–1449, 2022, doi: 10.1515/mt-2022-0191.","chicago":"Schramm, Britta, and Deborah Weiß. “Fracture Mechanical Evaluation of the Material HCT590X.” Materials Testing 64, no. 10 (2022): 1437–49. https://doi.org/10.1515/mt-2022-0191.","bibtex":"@article{Schramm_Weiß_2022, title={Fracture mechanical evaluation of the material HCT590X}, volume={64}, DOI={10.1515/mt-2022-0191}, number={10}, journal={Materials Testing}, publisher={Walter de Gruyter GmbH}, author={Schramm, Britta and Weiß, Deborah}, year={2022}, pages={1437–1449} }","short":"B. Schramm, D. Weiß, Materials Testing 64 (2022) 1437–1449.","mla":"Schramm, Britta, and Deborah Weiß. “Fracture Mechanical Evaluation of the Material HCT590X.” Materials Testing, vol. 64, no. 10, Walter de Gruyter GmbH, 2022, pp. 1437–49, doi:10.1515/mt-2022-0191.","apa":"Schramm, B., & Weiß, D. (2022). Fracture mechanical evaluation of the material HCT590X. Materials Testing, 64(10), 1437–1449. https://doi.org/10.1515/mt-2022-0191"},"department":[{"_id":"143"},{"_id":"630"}],"user_id":"45673","_id":"34403","project":[{"grant_number":"418701707","name":"TRR 285: TRR 285","_id":"130"},{"name":"TRR 285 - B: TRR 285 - Project Area B","_id":"132"},{"name":"TRR 285 – B04: TRR 285 - Subproject B04","_id":"143"}],"type":"journal_article","status":"public","date_created":"2022-12-13T15:19:58Z","publisher":"Walter de Gruyter GmbH","title":"Fracture mechanical evaluation of the material HCT590X","issue":"10","quality_controlled":"1","year":"2022","language":[{"iso":"eng"}],"keyword":["Mechanical Engineering","Mechanics of Materials","General Materials Science"],"publication":"Materials Testing","abstract":[{"lang":"eng","text":"For a reliable, strength-compliant and fracture-resistant design of components and technical structures and for the prevention of damage cases, both the criteria of strength calculation and fracture mechanics are essential. In contrast to strength calculation the fracture mechanics assumes the existence of cracks which might further propagate due to the operational load. First, the present paper illustrates the general procedure of a fracture mechanical evaluation of fatigue cracks in order to assess practical damage cases. Fracture mechanical fundamentals which are essential for the calculation of the stress intensity factors K\r\n I and the experimental determination of fracture mechanical material parameters (e.g. threshold ΔK\r\n I,th against fatigue crack growth, crack growth rate curve) are explained in detail. The subsequent fracture mechanical evaluation on the basis of the local stress situation at the crack tip and the fracture mechanical material data is executed for different materials and selected crack problems. Hereby, the main focus is on the material HCT590X as it is the essential material being investigated by TRR285."}]},{"title":"Development of a Numerical 3D Model for Analyzing Clinched Joints in Versatile Process Chains","doi":"10.1007/978-3-031-06212-4_15","date_updated":"2023-04-27T11:21:52Z","publisher":"Springer International Publishing","date_created":"2022-12-05T20:56:01Z","author":[{"last_name":"Bielak","full_name":"Bielak, Christian Roman","id":"34782","first_name":"Christian Roman"},{"full_name":"Böhnke, Max","id":"45779","last_name":"Böhnke","first_name":"Max"},{"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"}],"year":"2022","place":"Cham","citation":{"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.","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.","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","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.","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} }","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"},"quality_controlled":"1","publication_identifier":{"isbn":["9783031062117","9783031062124"],"issn":["2367-1181","2367-1696"]},"publication_status":"published","language":[{"iso":"eng"}],"_id":"34210","project":[{"grant_number":"418701707","_id":"130","name":"TRR 285: TRR 285"},{"name":"TRR 285 - A: TRR 285 - Project Area A","_id":"131"},{"name":"TRR 285 – A01: TRR 285 - Subproject A01","_id":"135"}],"user_id":"34782","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."}],"status":"public","publication":"The Minerals, Metals & Materials Series","type":"book_chapter","popular_science":"1"},{"language":[{"iso":"eng"}],"article_number":"146442072210934","keyword":["Mechanical Engineering","General Materials Science"],"user_id":"34782","department":[{"_id":"157"},{"_id":"630"}],"project":[{"grant_number":"418701707","_id":"130","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"}],"_id":"30962","status":"public","abstract":[{"text":" Clinching as a mechanical joining process has become established in many areas of car body. In order to predict relevant properties of clinched joints and to ensure the reliability of the process, it is numerically simulated during the product development process. The prediction accuracy of the simulated process depends on the implemented friction model. Therefore, a new method for determining friction coefficients in sheet metal materials was developed and tested. The aim of this study is the numerical investigation of this experimental method by means of FE simulation. The experimental setup is modelled in a 3D numerical simulation taking into account the process parameters varying in the experiment, such as geometric properties, contact pressure and contact velocity. Furthermore, the contact description of the model is calibrated via the experimentally determined friction coefficients according to clinch-relevant parameter space. It is shown that the assumptions made in the determination of the experimental data in preliminary work are valid. In addition, it is investigated to what extent the standard Coulomb friction model in the FEM can reproduce the results of the experimental method. ","lang":"eng"}],"type":"journal_article","publication":"Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications","doi":"10.1177/14644207221093468","title":"Numerical investigation of a friction test to determine the friction coefficients for the clinching process","author":[{"last_name":"Bielak","id":"34782","full_name":"Bielak, Christian Roman","first_name":"Christian Roman"},{"last_name":"Böhnke","id":"45779","full_name":"Böhnke, Max","first_name":"Max"},{"id":"7850","full_name":"Bobbert, Mathias","last_name":"Bobbert","first_name":"Mathias"},{"first_name":"Gerson","orcid":"0000-0002-2763-1246","last_name":"Meschut","full_name":"Meschut, Gerson","id":"32056"}],"date_created":"2022-04-27T08:58:11Z","publisher":"SAGE Publications","date_updated":"2023-04-28T11:31:35Z","citation":{"bibtex":"@article{Bielak_Böhnke_Bobbert_Meschut_2022, title={Numerical investigation of a friction test to determine the friction coefficients for the clinching process}, DOI={10.1177/14644207221093468}, number={146442072210934}, journal={Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications}, publisher={SAGE Publications}, author={Bielak, Christian Roman and Böhnke, Max and Bobbert, Mathias and Meschut, Gerson}, year={2022} }","short":"C.R. Bielak, M. Böhnke, M. Bobbert, G. Meschut, Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications (2022).","mla":"Bielak, Christian Roman, et al. “Numerical Investigation of a Friction Test to Determine the Friction Coefficients for the Clinching Process.” Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications, 146442072210934, SAGE Publications, 2022, doi:10.1177/14644207221093468.","apa":"Bielak, C. R., Böhnke, M., Bobbert, M., & Meschut, G. (2022). Numerical investigation of a friction test to determine the friction coefficients for the clinching process. Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications, Article 146442072210934. https://doi.org/10.1177/14644207221093468","chicago":"Bielak, Christian Roman, Max Böhnke, Mathias Bobbert, and Gerson Meschut. “Numerical Investigation of a Friction Test to Determine the Friction Coefficients for the Clinching Process.” Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications, 2022. https://doi.org/10.1177/14644207221093468.","ieee":"C. R. Bielak, M. Böhnke, M. Bobbert, and G. Meschut, “Numerical investigation of a friction test to determine the friction coefficients for the clinching process,” Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications, Art. no. 146442072210934, 2022, doi: 10.1177/14644207221093468.","ama":"Bielak CR, Böhnke M, Bobbert M, Meschut G. Numerical investigation of a friction test to determine the friction coefficients for the clinching process. Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications. Published online 2022. doi:10.1177/14644207221093468"},"year":"2022","publication_status":"published","publication_identifier":{"issn":["1464-4207","2041-3076"]},"quality_controlled":"1"},{"intvolume":" 6","citation":{"short":"B. Schramm, S. Martin, C. Steinfelder, C.R. Bielak, A. Brosius, G. Meschut, T. Tröster, T. Wallmersperger, J. Mergheim, Journal of Advanced Joining Processes 6 (2022).","mla":"Schramm, Britta, et al. “A Review on the Modeling of the Clinching Process Chain - Part I: Design Phase.” Journal of Advanced Joining Processes, vol. 6, 100133, Elsevier BV, 2022, doi:10.1016/j.jajp.2022.100133.","bibtex":"@article{Schramm_Martin_Steinfelder_Bielak_Brosius_Meschut_Tröster_Wallmersperger_Mergheim_2022, title={A Review on the Modeling of the Clinching Process Chain - Part I: Design Phase}, volume={6}, DOI={10.1016/j.jajp.2022.100133}, number={100133}, journal={Journal of Advanced Joining Processes}, publisher={Elsevier BV}, author={Schramm, Britta and Martin, Sven and Steinfelder, Christian and Bielak, Christian Roman and Brosius, Alexander and Meschut, Gerson and Tröster, Thomas and Wallmersperger, Thomas and Mergheim, Julia}, year={2022} }","apa":"Schramm, B., Martin, S., Steinfelder, C., Bielak, C. R., Brosius, A., Meschut, G., Tröster, T., Wallmersperger, T., & Mergheim, J. (2022). A Review on the Modeling of the Clinching Process Chain - Part I: Design Phase. Journal of Advanced Joining Processes, 6, Article 100133. https://doi.org/10.1016/j.jajp.2022.100133","chicago":"Schramm, Britta, Sven Martin, Christian Steinfelder, Christian Roman Bielak, Alexander Brosius, Gerson Meschut, Thomas Tröster, Thomas Wallmersperger, and Julia Mergheim. “A Review on the Modeling of the Clinching Process Chain - Part I: Design Phase.” Journal of Advanced Joining Processes 6 (2022). https://doi.org/10.1016/j.jajp.2022.100133.","ieee":"B. Schramm et al., “A Review on the Modeling of the Clinching Process Chain - Part I: Design Phase,” Journal of Advanced Joining Processes, vol. 6, Art. no. 100133, 2022, doi: 10.1016/j.jajp.2022.100133.","ama":"Schramm B, Martin S, Steinfelder C, et al. A Review on the Modeling of the Clinching Process Chain - Part I: Design Phase. Journal of Advanced Joining Processes. 2022;6. doi:10.1016/j.jajp.2022.100133"},"publication_identifier":{"issn":["2666-3309"]},"publication_status":"published","doi":"10.1016/j.jajp.2022.100133","volume":6,"author":[{"id":"4668","full_name":"Schramm, Britta","last_name":"Schramm","first_name":"Britta"},{"last_name":"Martin","full_name":"Martin, Sven","id":"38177","first_name":"Sven"},{"first_name":"Christian","full_name":"Steinfelder, Christian","last_name":"Steinfelder"},{"id":"34782","full_name":"Bielak, Christian Roman","last_name":"Bielak","first_name":"Christian Roman"},{"last_name":"Brosius","full_name":"Brosius, Alexander","first_name":"Alexander"},{"orcid":"0000-0002-2763-1246","last_name":"Meschut","id":"32056","full_name":"Meschut, Gerson","first_name":"Gerson"},{"first_name":"Thomas","full_name":"Tröster, Thomas","id":"553","last_name":"Tröster"},{"first_name":"Thomas","last_name":"Wallmersperger","full_name":"Wallmersperger, Thomas"},{"last_name":"Mergheim","full_name":"Mergheim, Julia","first_name":"Julia"}],"date_updated":"2023-04-28T11:30:38Z","status":"public","type":"journal_article","article_number":"100133","department":[{"_id":"143"},{"_id":"157"}],"user_id":"34782","_id":"34069","project":[{"_id":"130","name":"TRR 285: TRR 285","grant_number":"418701707"},{"_id":"143","name":"TRR 285 – B04: TRR 285 - Subproject B04"},{"_id":"140","name":"TRR 285 – B01: TRR 285 - Subproject B01"},{"name":"TRR 285 – A01: TRR 285 - Subproject A01","_id":"135"},{"name":"TRR 285 – B03: TRR 285 - Subproject B03","_id":"142"},{"name":"TRR 285 – A05: TRR 285 - Subproject A05","_id":"139"}],"year":"2022","quality_controlled":"1","title":"A Review on the Modeling of the Clinching Process Chain - Part I: Design Phase","date_created":"2022-11-14T08:53:49Z","publisher":"Elsevier BV","publication":"Journal of Advanced Joining Processes","language":[{"iso":"eng"}],"keyword":["Mechanical Engineering","Mechanics of Materials","Engineering (miscellaneous)","Chemical Engineering (miscellaneous)"]},{"status":"public","type":"journal_article","publication":"Journal of Advanced Joining Processes","language":[{"iso":"eng"}],"article_number":"100134","keyword":["Mechanical Engineering","Mechanics of Materials","Engineering (miscellaneous)","Chemical Engineering (miscellaneous)"],"user_id":"34782","department":[{"_id":"143"},{"_id":"157"}],"project":[{"grant_number":"418701707","_id":"130","name":"TRR 285: TRR 285"},{"_id":"143","name":"TRR 285 – B04: TRR 285 - Subproject B04"},{"name":"TRR 285 – A05: TRR 285 - Subproject A05","_id":"139"},{"name":"TRR 285 – A03: TRR 285 - Subproject A03","_id":"137"},{"name":"TRR 285 – A01: TRR 285 - Subproject A01","_id":"135"},{"_id":"142","name":"TRR 285 – B03: TRR 285 - Subproject B03"}],"_id":"34068","citation":{"ama":"Schramm B, Friedlein J, Gröger B, et al. A Review on the Modeling of the Clinching Process Chain - Part II: Joining Process. Journal of Advanced Joining Processes. Published online 2022. doi:10.1016/j.jajp.2022.100134","chicago":"Schramm, Britta, Johannes Friedlein, Benjamin Gröger, Christian Roman Bielak, Mathias Bobbert, Maik Gude, Gerson Meschut, Thomas Wallmersperger, and Julia Mergheim. “A Review on the Modeling of the Clinching Process Chain - Part II: Joining Process.” Journal of Advanced Joining Processes, 2022. https://doi.org/10.1016/j.jajp.2022.100134.","ieee":"B. Schramm et al., “A Review on the Modeling of the Clinching Process Chain - Part II: Joining Process,” Journal of Advanced Joining Processes, Art. no. 100134, 2022, doi: 10.1016/j.jajp.2022.100134.","bibtex":"@article{Schramm_Friedlein_Gröger_Bielak_Bobbert_Gude_Meschut_Wallmersperger_Mergheim_2022, title={A Review on the Modeling of the Clinching Process Chain - Part II: Joining Process}, DOI={10.1016/j.jajp.2022.100134}, number={100134}, journal={Journal of Advanced Joining Processes}, publisher={Elsevier BV}, author={Schramm, Britta and Friedlein, Johannes and Gröger, Benjamin and Bielak, Christian Roman and Bobbert, Mathias and Gude, Maik and Meschut, Gerson and Wallmersperger, Thomas and Mergheim, Julia}, year={2022} }","short":"B. Schramm, J. Friedlein, B. Gröger, C.R. Bielak, M. Bobbert, M. Gude, G. Meschut, T. Wallmersperger, J. Mergheim, Journal of Advanced Joining Processes (2022).","mla":"Schramm, Britta, et al. “A Review on the Modeling of the Clinching Process Chain - Part II: Joining Process.” Journal of Advanced Joining Processes, 100134, Elsevier BV, 2022, doi:10.1016/j.jajp.2022.100134.","apa":"Schramm, B., Friedlein, J., Gröger, B., Bielak, C. R., Bobbert, M., Gude, M., Meschut, G., Wallmersperger, T., & Mergheim, J. (2022). A Review on the Modeling of the Clinching Process Chain - Part II: Joining Process. Journal of Advanced Joining Processes, Article 100134. https://doi.org/10.1016/j.jajp.2022.100134"},"year":"2022","publication_status":"published","quality_controlled":"1","publication_identifier":{"issn":["2666-3309"]},"doi":"10.1016/j.jajp.2022.100134","title":"A Review on the Modeling of the Clinching Process Chain - Part II: Joining Process","author":[{"first_name":"Britta","id":"4668","full_name":"Schramm, Britta","last_name":"Schramm"},{"first_name":"Johannes","full_name":"Friedlein, Johannes","last_name":"Friedlein"},{"full_name":"Gröger, Benjamin","last_name":"Gröger","first_name":"Benjamin"},{"id":"34782","full_name":"Bielak, Christian Roman","last_name":"Bielak","first_name":"Christian Roman"},{"first_name":"Mathias","full_name":"Bobbert, Mathias","id":"7850","last_name":"Bobbert"},{"last_name":"Gude","full_name":"Gude, Maik","first_name":"Maik"},{"first_name":"Gerson","full_name":"Meschut, Gerson","id":"32056","last_name":"Meschut","orcid":"0000-0002-2763-1246"},{"first_name":"Thomas","full_name":"Wallmersperger, Thomas","last_name":"Wallmersperger"},{"first_name":"Julia","last_name":"Mergheim","full_name":"Mergheim, Julia"}],"date_created":"2022-11-14T08:53:07Z","publisher":"Elsevier BV","date_updated":"2023-04-28T11:31:03Z"},{"date_created":"2022-02-22T12:52:09Z","publisher":"Springer Science and Business Media LLC","title":"Numerical investigation of the clinched joint loadings considering the initial pre-strain in the joining area","quality_controlled":"1","year":"2022","language":[{"iso":"eng"}],"keyword":["Industrial and Manufacturing Engineering","Mechanical Engineering"],"publication":"Production Engineering","abstract":[{"text":"The components of a body in white consist of many individual thin-walled sheet metal parts, which usually are manufactured in deep-drawing processes. In general, the conditions in a deep-drawing process change due to changing tribology conditions, varying degrees of spring back, or scattering material properties in the sheet blanks, which affects the resulting pre-strain. Mechanical joining processes, especially clinching, are influenced by these process-related pre-strains. The final geometric shape of a clinched joint is affected to a significant level by the prior material deformation when joining with constant process parameters. That leads to a change in the stiffness and force transmission in the clinched joint due to the different geometric dimensions, such as interlock, neck thickness and bottom thickness, which directly affect the load bearing capacity. Here, the influence of the pre-straining in the deep drawing process on the force distribution in clinch points in an automotive assembly is investigated by finite-element models numerically. In further studies, the results are implemented in an optimization tool for designing clinched components. The methodology starts with a pre-straining of metal sheets. This step is followed by 2D rotationally symmetric forming simulations of the joining process. The resulting mesh of each forming simulation is rotated and 3D models are obtained. The clinched joint solid model with pre-strains is used further to determine the joint stiffnesses. With the simulation of the same test set-up with an equivalent point-connector model, the equivalent stiffness for each pre-strain combination is determined. Simulations are performed on a clinched component to assess the influence of pre-strain and sheet thinning on the clinched joint loadings by using the equivalent stiffnesses. The investigations clearly show that for the selected component, the loadings at the clinch points are dependent on the sheet thinning and the stiffnesses due to pre-strain. The magnitude of the influence varies depending on the quantity considered. For example, the shear force is more sensitive to the joint stiffness than to the sheet thinning.","lang":"eng"}],"author":[{"last_name":"Martin","id":"38177","full_name":"Martin, Sven","first_name":"Sven"},{"first_name":"Christian Roman","id":"34782","full_name":"Bielak, Christian Roman","last_name":"Bielak"},{"full_name":"Bobbert, Mathias","id":"7850","last_name":"Bobbert","first_name":"Mathias"},{"id":"553","full_name":"Tröster, Thomas","last_name":"Tröster","first_name":"Thomas"},{"first_name":"Gerson","full_name":"Meschut, Gerson","id":"32056","last_name":"Meschut","orcid":"0000-0002-2763-1246"}],"date_updated":"2023-04-28T11:57:22Z","oa":"1","main_file_link":[{"open_access":"1","url":"https://link.springer.com/article/10.1007/s11740-021-01103-w"}],"doi":"10.1007/s11740-021-01103-w","publication_status":"published","publication_identifier":{"issn":["0944-6524","1863-7353"]},"citation":{"ieee":"S. Martin, C. R. Bielak, M. Bobbert, T. Tröster, and G. Meschut, “Numerical investigation of the clinched joint loadings considering the initial pre-strain in the joining area,” Production Engineering, 2022, doi: 10.1007/s11740-021-01103-w.","chicago":"Martin, Sven, Christian Roman Bielak, Mathias Bobbert, Thomas Tröster, and Gerson Meschut. “Numerical Investigation of the Clinched Joint Loadings Considering the Initial Pre-Strain in the Joining Area.” Production Engineering, 2022. https://doi.org/10.1007/s11740-021-01103-w.","ama":"Martin S, Bielak CR, Bobbert M, Tröster T, Meschut G. Numerical investigation of the clinched joint loadings considering the initial pre-strain in the joining area. Production Engineering. Published online 2022. doi:10.1007/s11740-021-01103-w","short":"S. Martin, C.R. Bielak, M. Bobbert, T. Tröster, G. Meschut, Production Engineering (2022).","bibtex":"@article{Martin_Bielak_Bobbert_Tröster_Meschut_2022, title={Numerical investigation of the clinched joint loadings considering the initial pre-strain in the joining area}, DOI={10.1007/s11740-021-01103-w}, journal={Production Engineering}, publisher={Springer Science and Business Media LLC}, author={Martin, Sven and Bielak, Christian Roman and Bobbert, Mathias and Tröster, Thomas and Meschut, Gerson}, year={2022} }","mla":"Martin, Sven, et al. “Numerical Investigation of the Clinched Joint Loadings Considering the Initial Pre-Strain in the Joining Area.” Production Engineering, Springer Science and Business Media LLC, 2022, doi:10.1007/s11740-021-01103-w.","apa":"Martin, S., Bielak, C. R., Bobbert, M., Tröster, T., & Meschut, G. (2022). Numerical investigation of the clinched joint loadings considering the initial pre-strain in the joining area. Production Engineering. https://doi.org/10.1007/s11740-021-01103-w"},"user_id":"38177","department":[{"_id":"321"},{"_id":"149"},{"_id":"630"},{"_id":"157"}],"project":[{"_id":"130","name":"TRR 285: TRR 285","grant_number":"418701707"},{"_id":"131","name":"TRR 285 - A: TRR 285 - Project Area A"},{"_id":"135","name":"TRR 285 – A01: TRR 285 - Subproject A01"},{"_id":"132","name":"TRR 285 - B: TRR 285 - Project Area B"},{"name":"TRR 285 – B01: TRR 285 - Subproject B01","_id":"140"}],"_id":"29951","type":"journal_article","status":"public"},{"quality_controlled":"1","year":"2022","intvolume":" 927","citation":{"ama":"Martin S, Kurtusic K, Tröster T. Influence of the Surrounding Sheet Geometry on a Clinched Joint. Key Engineering Materials. 2022;927. doi: https://doi.org/10.4028/p-09md1c","ieee":"S. Martin, K. Kurtusic, and T. Tröster, “Influence of the Surrounding Sheet Geometry on a Clinched Joint,” Key Engineering Materials, vol. 927, 2022, doi: https://doi.org/10.4028/p-09md1c.","chicago":"Martin, Sven, Kristijan Kurtusic, and Thomas Tröster. “Influence of the Surrounding Sheet Geometry on a Clinched Joint.” Key Engineering Materials 927 (2022). https://doi.org/ https://doi.org/10.4028/p-09md1c.","short":"S. Martin, K. Kurtusic, T. Tröster, Key Engineering Materials 927 (2022).","bibtex":"@article{Martin_Kurtusic_Tröster_2022, title={Influence of the Surrounding Sheet Geometry on a Clinched Joint}, volume={927}, DOI={ https://doi.org/10.4028/p-09md1c}, journal={Key Engineering Materials}, author={Martin, Sven and Kurtusic, Kristijan and Tröster, Thomas}, year={2022} }","mla":"Martin, Sven, et al. “Influence of the Surrounding Sheet Geometry on a Clinched Joint.” Key Engineering Materials, vol. 927, 2022, doi: https://doi.org/10.4028/p-09md1c.","apa":"Martin, S., Kurtusic, K., & Tröster, T. (2022). Influence of the Surrounding Sheet Geometry on a Clinched Joint. Key Engineering Materials, 927. https://doi.org/ https://doi.org/10.4028/p-09md1c"},"oa":"1","date_updated":"2023-04-28T11:58:23Z","volume":927,"date_created":"2022-08-15T11:02:37Z","author":[{"id":"38177","full_name":"Martin, Sven","last_name":"Martin","first_name":"Sven"},{"full_name":"Kurtusic, Kristijan","last_name":"Kurtusic","first_name":"Kristijan"},{"first_name":"Thomas","last_name":"Tröster","id":"553","full_name":"Tröster, Thomas"}],"title":"Influence of the Surrounding Sheet Geometry on a Clinched Joint","doi":" https://doi.org/10.4028/p-09md1c","conference":{"location":"Braga","end_date":"29.04.2022","start_date":"27.04.2022","name":"25th International Conference in Material Forming"},"main_file_link":[{"open_access":"1","url":"https://www.scientific.net/KEM.926.1505"}],"publication":"Key Engineering Materials","type":"journal_article","status":"public","_id":"32813","project":[{"_id":"130","name":"TRR 285: TRR 285","grant_number":"418701707"},{"_id":"132","name":"TRR 285 - B: TRR 285 - Project Area B"},{"_id":"140","name":"TRR 285 – B01: TRR 285 - Subproject B01"}],"department":[{"_id":"321"},{"_id":"149"},{"_id":"630"}],"user_id":"38177","language":[{"iso":"eng"}]},{"citation":{"chicago":"Busch, Matthias, Daniel Köhler, Tino Hausotte, Robert Kupfer, Juliane Troschitz, and Maik Gude. “Approach to Determine the Characteristic Dimensions of Clinched Joints by Industrial X-Ray Computed Tomography.” E-Journal of Nondestructive Testing 27, no. 12 (2022). https://doi.org/10.58286/27519.","ieee":"M. Busch, D. Köhler, T. Hausotte, R. Kupfer, J. Troschitz, and M. Gude, “Approach to Determine the Characteristic Dimensions of Clinched Joints by Industrial X-ray Computed Tomography,” e-Journal of Nondestructive Testing, vol. 27, no. 12, 2022, doi: 10.58286/27519.","ama":"Busch M, Köhler D, Hausotte T, Kupfer R, Troschitz J, Gude M. Approach to Determine the Characteristic Dimensions of Clinched Joints by Industrial X-ray Computed Tomography. e-Journal of Nondestructive Testing. 2022;27(12). doi:10.58286/27519","apa":"Busch, M., Köhler, D., Hausotte, T., Kupfer, R., Troschitz, J., & Gude, M. (2022). Approach to Determine the Characteristic Dimensions of Clinched Joints by Industrial X-ray Computed Tomography. E-Journal of Nondestructive Testing, 27(12). https://doi.org/10.58286/27519","short":"M. Busch, D. Köhler, T. Hausotte, R. Kupfer, J. Troschitz, M. Gude, E-Journal of Nondestructive Testing 27 (2022).","mla":"Busch, Matthias, et al. “Approach to Determine the Characteristic Dimensions of Clinched Joints by Industrial X-Ray Computed Tomography.” E-Journal of Nondestructive Testing, vol. 27, no. 12, NDT.net, 2022, doi:10.58286/27519.","bibtex":"@article{Busch_Köhler_Hausotte_Kupfer_Troschitz_Gude_2022, title={Approach to Determine the Characteristic Dimensions of Clinched Joints by Industrial X-ray Computed Tomography}, volume={27}, DOI={10.58286/27519}, number={12}, journal={e-Journal of Nondestructive Testing}, publisher={NDT.net}, author={Busch, Matthias and Köhler, Daniel and Hausotte, Tino and Kupfer, Robert and Troschitz, Juliane and Gude, Maik}, year={2022} }"},"intvolume":" 27","year":"2022","issue":"12","publication_status":"published","publication_identifier":{"issn":["1435-4934"]},"doi":"10.58286/27519","title":"Approach to Determine the Characteristic Dimensions of Clinched Joints by Industrial X-ray Computed Tomography","author":[{"last_name":"Busch","full_name":"Busch, Matthias","first_name":"Matthias"},{"first_name":"Daniel","last_name":"Köhler","full_name":"Köhler, Daniel"},{"full_name":"Hausotte, Tino","last_name":"Hausotte","first_name":"Tino"},{"last_name":"Kupfer","full_name":"Kupfer, Robert","first_name":"Robert"},{"first_name":"Juliane","full_name":"Troschitz, Juliane","last_name":"Troschitz"},{"first_name":"Maik","full_name":"Gude, Maik","last_name":"Gude"}],"date_created":"2024-02-06T14:59:06Z","volume":27,"date_updated":"2025-06-02T20:19:07Z","publisher":"NDT.net","status":"public","abstract":[{"text":"\r\nDestructive micrograph analysis (MA) is the standard method for the assessment of clinched joints. However, during the joint preparation for the MA, geometric features of the joint can change due to elastic effects and closing cracks. X-ray computed tomography (CT) is a promising alternative to investigate the joint non-estructively. However, if the material properties of similar joining partners are the same, the CT is not able to correctly resolve surfaces in the joint that are close to or pressing onto each other. These surfaces are relevant for the determination of characteristic dimensions such as neck thickness and undercut. By placing a thin, highly radiopaque tin layer between the joining partners, the interfacial area in the reconstructed volume can be highlighted. In this work, a method for the localisation of the tin layer inside the joint as well as threshold value procedures for the outer joint contour in cross section images are investigated. The measured characteristic dimensions are compared with measured values from MA of the same samples and of samples without tin layer. In addition, possible effects of the tin layer on the joining point characteristics as well as problems of the MA are discussed.\r\n","lang":"eng"}],"type":"journal_article","publication":"e-Journal of Nondestructive Testing","language":[{"iso":"eng"}],"user_id":"83408","department":[{"_id":"157"},{"_id":"43"}],"project":[{"_id":"130","name":"TRR 285: TRR 285","grant_number":"418701707"},{"name":"TRR 285 - C: TRR 285 - Project Area C","_id":"133"},{"_id":"148","name":"TRR 285 – C04: TRR 285 - Subproject C04"},{"name":"TRR 285 – C05: TRR 285 - Subproject C05","_id":"149"}],"_id":"51192"},{"language":[{"iso":"ger"}],"project":[{"_id":"133","name":"TRR 285 - C: TRR 285 - Project Area C"},{"_id":"130","name":"TRR 285: TRR 285","grant_number":"418701707"},{"_id":"148","name":"TRR 285 – C04: TRR 285 - Subproject C04"}],"_id":"51191","user_id":"83408","department":[{"_id":"157"},{"_id":"43"}],"abstract":[{"lang":"ger","text":"Zur Qualitätssicherung von Clinchpunkten werden häufig ex-situ Methoden, wie etwa Schliffbildanalysen, eingesetzt. Diese ermöglichen jedoch nicht die Berücksichtigung von Phänomenen, die während der Belastung auftreten, da sich nach der Entlastung elastische Deformationen zurückbilden und Risse wieder schließen. Dagegen kann mit der in-situ Computertomographie (CT) der innere Deformationszustand des Clinchpunkts, z.B. während eines Scherzugversuchs, untersucht werden. Hierbei ist es für artgleiche Werkstoffe aufgrund der hohen Pressungen im Clinchpunkt schwierig, die Trennfläche zwischen den Fügepartnern im CT-Scan zu erkennen. Daher wird eine radioopake Zwischenschicht aus Zinn in die Trennfläche eingebracht. In dieser Arbeit wird der Einfluss der Zwischenschicht auf die in-situ CT-Scherzugprüfung untersucht. Hierzu werden sowohl Kraft-Verlängerungs-Kurven als auch die Geometrie der Clinchpunkte während der Belastung verglichen."}],"editor":[{"full_name":"Zimmermann, Martina","last_name":"Zimmermann","first_name":"Martina"}],"status":"public","type":"conference","publication":"Tagungsband zur Werkstoffprüfung 2022","title":"Untersuchung zum Einfluss radioopaker Zwischenschichten bei der in-situ CT geclinchter Verbindungen","conference":{"end_date":"2022-10-28","location":"Dresden","name":"40. Vortrags- und Diskussionstagung \"Werkstoffprüfung 2022\"","start_date":"2022-10-27"},"date_updated":"2025-06-02T20:17:55Z","date_created":"2024-02-06T14:57:37Z","author":[{"id":"83408","full_name":"Köhler, Daniel","last_name":"Köhler","first_name":"Daniel"},{"first_name":"Robert","last_name":"Kupfer","full_name":"Kupfer, Robert"},{"full_name":"Troschitz, Juliane","last_name":"Troschitz","first_name":"Juliane"},{"full_name":"Gude, Maik","last_name":"Gude","first_name":"Maik"}],"year":"2022","place":"Dresden","citation":{"ama":"Köhler D, Kupfer R, Troschitz J, Gude M. Untersuchung zum Einfluss radioopaker Zwischenschichten bei der in-situ CT geclinchter Verbindungen. In: Zimmermann M, ed. Tagungsband zur Werkstoffprüfung 2022. ; 2022.","chicago":"Köhler, Daniel, Robert Kupfer, Juliane Troschitz, and Maik Gude. “Untersuchung zum Einfluss radioopaker Zwischenschichten bei der in-situ CT geclinchter Verbindungen.” In Tagungsband zur Werkstoffprüfung 2022, edited by Martina Zimmermann. Dresden, 2022.","ieee":"D. Köhler, R. Kupfer, J. Troschitz, and M. Gude, “Untersuchung zum Einfluss radioopaker Zwischenschichten bei der in-situ CT geclinchter Verbindungen,” in Tagungsband zur Werkstoffprüfung 2022, Dresden, 2022.","apa":"Köhler, D., Kupfer, R., Troschitz, J., & Gude, M. (2022). Untersuchung zum Einfluss radioopaker Zwischenschichten bei der in-situ CT geclinchter Verbindungen. In M. Zimmermann (Ed.), Tagungsband zur Werkstoffprüfung 2022.","short":"D. Köhler, R. Kupfer, J. Troschitz, M. Gude, in: M. Zimmermann (Ed.), Tagungsband zur Werkstoffprüfung 2022, Dresden, 2022.","mla":"Köhler, Daniel, et al. “Untersuchung zum Einfluss radioopaker Zwischenschichten bei der in-situ CT geclinchter Verbindungen.” Tagungsband zur Werkstoffprüfung 2022, edited by Martina Zimmermann, 2022.","bibtex":"@inproceedings{Köhler_Kupfer_Troschitz_Gude_2022, place={Dresden}, title={Untersuchung zum Einfluss radioopaker Zwischenschichten bei der in-situ CT geclinchter Verbindungen}, booktitle={Tagungsband zur Werkstoffprüfung 2022}, author={Köhler, Daniel and Kupfer, Robert and Troschitz, Juliane and Gude, Maik}, editor={Zimmermann, Martina}, year={2022} }"}},{"department":[{"_id":"157"},{"_id":"43"}],"user_id":"83408","_id":"51195","project":[{"name":"TRR 285: TRR 285","_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"}],"language":[{"iso":"eng"}],"publication":"The Minerals, Metals & Materials Series","type":"book_chapter","status":"public","date_created":"2024-02-06T15:03:22Z","author":[{"first_name":"Daniel","full_name":"Köhler, Daniel","last_name":"Köhler"},{"first_name":"Robert","full_name":"Kupfer, Robert","last_name":"Kupfer"},{"first_name":"Juliane","last_name":"Troschitz","full_name":"Troschitz, Juliane"},{"full_name":"Gude, Maik","last_name":"Gude","first_name":"Maik"}],"publisher":"Springer International Publishing","date_updated":"2025-06-02T20:19:28Z","doi":"10.1007/978-3-031-06212-4_75","title":"Clinching in In Situ CT—A Novel Validation Method for Mechanical Joining Processes","publication_identifier":{"issn":["2367-1181","2367-1696"],"isbn":["9783031062117","9783031062124"]},"publication_status":"published","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","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.","short":"D. Köhler, R. Kupfer, J. Troschitz, M. Gude, in: The Minerals, Metals & Materials Series, Springer International Publishing, Cham, 2022.","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} }","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.","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"},"place":"Cham","year":"2022"},{"publisher":"Trans Tech Publications, Ltd.","date_updated":"2025-06-02T20:21:13Z","volume":926,"date_created":"2024-02-06T15:04:45Z","author":[{"full_name":"Köhler, Daniel","last_name":"Köhler","first_name":"Daniel"},{"full_name":"Stephan, Richard","last_name":"Stephan","first_name":"Richard"},{"first_name":"Robert","full_name":"Kupfer, Robert","last_name":"Kupfer"},{"full_name":"Troschitz, Juliane","last_name":"Troschitz","first_name":"Juliane"},{"first_name":"Alexander","full_name":"Brosius, Alexander","last_name":"Brosius"},{"last_name":"Gude","full_name":"Gude, Maik","first_name":"Maik"}],"title":"Investigations on Combined <i>In Situ</i> CT and Acoustic Analysis during Clinching","doi":"10.4028/p-32330d","publication_identifier":{"issn":["1662-9795"]},"publication_status":"published","year":"2022","intvolume":" 926","page":"1489-1497","citation":{"ama":"Köhler D, Stephan R, Kupfer R, Troschitz J, Brosius A, Gude M. Investigations on Combined <i>In Situ</i> CT and Acoustic Analysis during Clinching. Key Engineering Materials. 2022;926:1489-1497. doi:10.4028/p-32330d","ieee":"D. Köhler, R. Stephan, R. Kupfer, J. Troschitz, A. Brosius, and M. Gude, “Investigations on Combined <i>In Situ</i> CT and Acoustic Analysis during Clinching,” Key Engineering Materials, vol. 926, pp. 1489–1497, 2022, doi: 10.4028/p-32330d.","chicago":"Köhler, Daniel, Richard Stephan, Robert Kupfer, Juliane Troschitz, Alexander Brosius, and Maik Gude. “Investigations on Combined <I>In Situ</I> CT and Acoustic Analysis during Clinching.” Key Engineering Materials 926 (2022): 1489–97. https://doi.org/10.4028/p-32330d.","apa":"Köhler, D., Stephan, R., Kupfer, R., Troschitz, J., Brosius, A., & Gude, M. (2022). Investigations on Combined <i>In Situ</i> CT and Acoustic Analysis during Clinching. Key Engineering Materials, 926, 1489–1497. https://doi.org/10.4028/p-32330d","mla":"Köhler, Daniel, et al. “Investigations on Combined <I>In Situ</I> CT and Acoustic Analysis during Clinching.” Key Engineering Materials, vol. 926, Trans Tech Publications, Ltd., 2022, pp. 1489–97, doi:10.4028/p-32330d.","short":"D. Köhler, R. Stephan, R. Kupfer, J. Troschitz, A. Brosius, M. Gude, Key Engineering Materials 926 (2022) 1489–1497.","bibtex":"@article{Köhler_Stephan_Kupfer_Troschitz_Brosius_Gude_2022, title={Investigations on Combined <i>In Situ</i> CT and Acoustic Analysis during Clinching}, volume={926}, DOI={10.4028/p-32330d}, journal={Key Engineering Materials}, publisher={Trans Tech Publications, Ltd.}, author={Köhler, Daniel and Stephan, Richard and Kupfer, Robert and Troschitz, Juliane and Brosius, Alexander and Gude, Maik}, year={2022}, pages={1489–1497} }"},"_id":"51197","project":[{"name":"TRR 285: TRR 285","_id":"130","grant_number":"418701707"},{"_id":"133","name":"TRR 285 - C: TRR 285 - Project Area C"},{"_id":"148","name":"TRR 285 – C04: TRR 285 - Subproject C04"}],"department":[{"_id":"157"},{"_id":"43"}],"user_id":"83408","keyword":["Mechanical Engineering","Mechanics of Materials","General Materials Science"],"language":[{"iso":"eng"}],"publication":"Key Engineering Materials","type":"journal_article","abstract":[{"lang":"eng","text":"Clinching is a cost efficient method for joining components in series production. To assure the clinch point’s quality, the force displacement curve during clinching or the bottom thickness are monitored. The most significant geometrical characteristics of the clinch point, neck thickness and undercut, are usually tested destructively by microsectioning. However, micrograph preparation goes ahead with a resetting of elastic deformations and crack-closing after unloading. To generate a comprehensive knowledge of the clinch point’s inner geometry under load, in-situ computed tomography (CT) and acoustic testing (TDA) can be combined. While the TDA is highly sensitive to the inner state of the clinch point, it could detect critical events like crack development during loading. If such events are indicated, the loading process is stopped and a stepped in-situ CT of the following crack and deformation development is performed. In this paper, the concept is applied to the process of clinching itself, providing a detailed three-dimensional insight in the development of the joining zone. A test set-up is used which allows a stepwise clinching of two aluminium sheets EN AW 6014. Furthermore, this set-up is positioned within a CT system. In order to minimize X-ray absorption, a beryllium cylinder is used within the set-up frame and clinching tools are made from Si3N4. The actuator and sensor necessary for the TDA are integrated in the set-up. In regular process steps, the clinching process is interrupted in order to perform a TDA and a CT scan. In order to enhance the visibility of the interface, a thin tin layer is positioned between the sheets prior clinching. It is shown, that the test-set up allows a monitoring of the dynamic behaviour of the specimen during clinching while the CT scans visualize the inner geometry and material flow non-destructively."}],"status":"public"},{"intvolume":" 6","citation":{"ieee":"J. Gerritzen, A. Hornig, B. Gröger, and M. Gude, “A Data Driven Modelling Approach for the Strain Rate Dependent 3D Shear Deformation and Failure of Thermoplastic Fibre Reinforced Composites: Experimental Characterisation and Deriving Modelling Parameters,” Journal of Composites Science, vol. 6, no. 10, Art. no. 318, 2022, doi: 10.3390/jcs6100318.","chicago":"Gerritzen, Johannes, Andreas Hornig, Benjamin Gröger, and Maik Gude. “A Data Driven Modelling Approach for the Strain Rate Dependent 3D Shear Deformation and Failure of Thermoplastic Fibre Reinforced Composites: Experimental Characterisation and Deriving Modelling Parameters.” Journal of Composites Science 6, no. 10 (2022). https://doi.org/10.3390/jcs6100318.","short":"J. Gerritzen, A. Hornig, B. Gröger, M. Gude, Journal of Composites Science 6 (2022).","bibtex":"@article{Gerritzen_Hornig_Gröger_Gude_2022, title={A Data Driven Modelling Approach for the Strain Rate Dependent 3D Shear Deformation and Failure of Thermoplastic Fibre Reinforced Composites: Experimental Characterisation and Deriving Modelling Parameters}, volume={6}, DOI={10.3390/jcs6100318}, number={10318}, journal={Journal of Composites Science}, publisher={MDPI AG}, author={Gerritzen, Johannes and Hornig, Andreas and Gröger, Benjamin and Gude, Maik}, year={2022} }","mla":"Gerritzen, Johannes, et al. “A Data Driven Modelling Approach for the Strain Rate Dependent 3D Shear Deformation and Failure of Thermoplastic Fibre Reinforced Composites: Experimental Characterisation and Deriving Modelling Parameters.” Journal of Composites Science, vol. 6, no. 10, 318, MDPI AG, 2022, doi:10.3390/jcs6100318.","apa":"Gerritzen, J., Hornig, A., Gröger, B., & Gude, M. (2022). A Data Driven Modelling Approach for the Strain Rate Dependent 3D Shear Deformation and Failure of Thermoplastic Fibre Reinforced Composites: Experimental Characterisation and Deriving Modelling Parameters. Journal of Composites Science, 6(10), Article 318. https://doi.org/10.3390/jcs6100318","ama":"Gerritzen J, Hornig A, Gröger B, Gude M. A Data Driven Modelling Approach for the Strain Rate Dependent 3D Shear Deformation and Failure of Thermoplastic Fibre Reinforced Composites: Experimental Characterisation and Deriving Modelling Parameters. Journal of Composites Science. 2022;6(10). doi:10.3390/jcs6100318"},"year":"2022","issue":"10","publication_identifier":{"issn":["2504-477X"]},"publication_status":"published","doi":"10.3390/jcs6100318","title":"A Data Driven Modelling Approach for the Strain Rate Dependent 3D Shear Deformation and Failure of Thermoplastic Fibre Reinforced Composites: Experimental Characterisation and Deriving Modelling Parameters","volume":6,"date_created":"2026-02-02T08:41:00Z","author":[{"first_name":"Johannes","orcid":"0000-0002-0169-8602","last_name":"Gerritzen","full_name":"Gerritzen, Johannes","id":"105344"},{"first_name":"Andreas","full_name":"Hornig, Andreas","last_name":"Hornig"},{"full_name":"Gröger, Benjamin","last_name":"Gröger","first_name":"Benjamin"},{"full_name":"Gude, Maik","last_name":"Gude","first_name":"Maik"}],"date_updated":"2026-02-27T06:47:18Z","publisher":"MDPI AG","status":"public","abstract":[{"lang":"eng","text":"The 3D shear deformation and failure behaviour of a glass fibre reinforced polypropylene in a shear strain rate range of γ˙=2.2×10−4 to 3.4 1s is investigated. An Iosipescu testing setup on a servo-hydraulic high speed testing unit is used to experimentally characterise the in-plane and out-of-plane behaviour utilising three specimen configurations (12-, 13- and 31-direction). The experimental procedure as well as the testing results are presented and discussed. The measured shear stress–shear strain relations indicate a highly nonlinear behaviour and a distinct rate dependency. Two methods are investigated to derive according material characteristics: a classical engineering approach based on moduli and strengths and a data driven approach based on the curve progression. In all cases a Johnson–Cook based formulation is used to describe rate dependency. The analysis methodologies as well as the derived model parameters are described and discussed in detail. It is shown that a phenomenologically enhanced regression can be used to obtain material characteristics for a generalising constitutive model based on the data driven approach."}],"publication":"Journal of Composites Science","type":"journal_article","language":[{"iso":"eng"}],"article_number":"318","article_type":"original","user_id":"105344","_id":"63829","project":[{"name":"TRR 285 - Subproject A03","_id":"137"},{"name":"TRR 285 - Project Area A","_id":"131"},{"_id":"130","name":"TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten"}]},{"doi":"10.1088/1757-899X/1157/1/012004","title":"Inverse parameter identification of an anisotropic plasticity model for sheet metal","author":[{"full_name":"Friedlein, J.","last_name":"Friedlein","first_name":"J."},{"first_name":"S.","full_name":"Wituschek, S.","last_name":"Wituschek"},{"last_name":"Lechner","full_name":"Lechner, M.","first_name":"M."},{"first_name":"J.","full_name":"Mergheim, J.","last_name":"Mergheim"},{"first_name":"P.","full_name":"Steinmann, P.","last_name":"Steinmann"}],"date_created":"2022-03-28T12:42:10Z","volume":1157,"date_updated":"2022-03-29T12:45:57Z","citation":{"ama":"Friedlein J, Wituschek S, Lechner M, Mergheim J, Steinmann P. Inverse parameter identification of an anisotropic plasticity model for sheet metal. IOP Conference Series: Materials Science and Engineering. 2021;1157:012004. doi:10.1088/1757-899X/1157/1/012004","apa":"Friedlein, J., Wituschek, S., Lechner, M., Mergheim, J., & Steinmann, P. (2021). Inverse parameter identification of an anisotropic plasticity model for sheet metal. IOP Conference Series: Materials Science and Engineering, 1157, 012004. https://doi.org/10.1088/1757-899X/1157/1/012004","bibtex":"@article{Friedlein_Wituschek_Lechner_Mergheim_Steinmann_2021, title={Inverse parameter identification of an anisotropic plasticity model for sheet metal}, volume={1157}, DOI={10.1088/1757-899X/1157/1/012004}, journal={IOP Conference Series: Materials Science and Engineering}, author={Friedlein, J. and Wituschek, S. and Lechner, M. and Mergheim, J. and Steinmann, P.}, year={2021}, pages={012004} }","short":"J. Friedlein, S. Wituschek, M. Lechner, J. Mergheim, P. Steinmann, IOP Conference Series: Materials Science and Engineering 1157 (2021) 012004.","mla":"Friedlein, J., et al. “Inverse Parameter Identification of an Anisotropic Plasticity Model for Sheet Metal.” IOP Conference Series: Materials Science and Engineering, vol. 1157, 2021, p. 012004, doi:10.1088/1757-899X/1157/1/012004.","chicago":"Friedlein, J., S. Wituschek, M. Lechner, J. Mergheim, and P. Steinmann. “Inverse Parameter Identification of an Anisotropic Plasticity Model for Sheet Metal.” IOP Conference Series: Materials Science and Engineering 1157 (2021): 012004. https://doi.org/10.1088/1757-899X/1157/1/012004.","ieee":"J. Friedlein, S. Wituschek, M. Lechner, J. Mergheim, and P. Steinmann, “Inverse parameter identification of an anisotropic plasticity model for sheet metal,” IOP Conference Series: Materials Science and Engineering, vol. 1157, p. 012004, 2021, doi: 10.1088/1757-899X/1157/1/012004."},"page":"012004","intvolume":" 1157","year":"2021","language":[{"iso":"eng"}],"user_id":"68518","project":[{"_id":"130","name":"TRR 285: TRR 285","grant_number":"418701707"},{"_id":"131","name":"TRR 285 - A: TRR 285 - Project Area A"},{"_id":"139","name":"TRR 285 – A05: TRR 285 - Subproject A05"},{"_id":"133","name":"TRR 285 - C: TRR 285 - Project Area C"},{"_id":"146","name":"TRR 285 – C02: TRR 285 - Subproject C02"}],"_id":"30647","status":"public","abstract":[{"lang":"eng","text":"The increasing economic and ecological demands on the mobility sector require efforts to reduce resource consumption in both the production and utilization phases. The use of lightweight construction technologies can save material and increase energy efficiency during operation. Multi-material systems consisting of different materials and geometries are used to achieve weight reduction. Since conventional joining processes reach their limits in the connection of these components, new methods and technologies are necessary in order to be able to react versatilely to varying process and disturbance variables. For fundamental investigations of new possibilities in joining technology, numerical investigations are helpful to identify process parameters. To generate valid results, robust and efficient material models are developed which are adapted to the requirements of versatile joining technologies, for instance to the high plastic strains associated with self-piercing riveting. To describe the inherent strain-induced plastic orthotropy of sheet metal an anisotropic Hill-plasticity model is formulated. Tensile tests for different sheet orientations are conducted both experimentally and numerically to adjust the anisotropic material parameters by inverse parameter identification for aluminium EN AW-6014 and steel HCT590X. Then, the layer compression test is used to validate the model and the previously identified parameters."}],"type":"journal_article","publication":"IOP Conference Series: Materials Science and Engineering"},{"doi":"10.3390/jcs5090239","title":"Energy direction in ultrasonic impregnation of continuous fiber-reinforced thermoplastics","volume":5,"author":[{"first_name":"J.","last_name":"Popp","full_name":"Popp, J."},{"first_name":"M.","last_name":"Wolf","full_name":"Wolf, M."},{"first_name":"T.","last_name":"Mattner","full_name":"Mattner, T."},{"last_name":"Drummer","full_name":"Drummer, D.","first_name":"D."}],"date_created":"2022-03-28T12:25:45Z","date_updated":"2022-03-29T12:43:36Z","intvolume":" 5","page":"239","citation":{"chicago":"Popp, J., M. Wolf, T. Mattner, and D. Drummer. “Energy Direction in Ultrasonic Impregnation of Continuous Fiber-Reinforced Thermoplastics.” Journal of Composites Science 5 (2021): 239. https://doi.org/10.3390/jcs5090239.","ieee":"J. Popp, M. Wolf, T. Mattner, and D. Drummer, “Energy direction in ultrasonic impregnation of continuous fiber-reinforced thermoplastics,” Journal of Composites Science, vol. 5, p. 239, 2021, doi: 10.3390/jcs5090239.","apa":"Popp, J., Wolf, M., Mattner, T., & Drummer, D. (2021). Energy direction in ultrasonic impregnation of continuous fiber-reinforced thermoplastics. Journal of Composites Science, 5, 239. https://doi.org/10.3390/jcs5090239","ama":"Popp J, Wolf M, Mattner T, Drummer D. Energy direction in ultrasonic impregnation of continuous fiber-reinforced thermoplastics. Journal of Composites Science. 2021;5:239. doi:10.3390/jcs5090239","mla":"Popp, J., et al. “Energy Direction in Ultrasonic Impregnation of Continuous Fiber-Reinforced Thermoplastics.” Journal of Composites Science, vol. 5, 2021, p. 239, doi:10.3390/jcs5090239.","short":"J. Popp, M. Wolf, T. Mattner, D. Drummer, Journal of Composites Science 5 (2021) 239.","bibtex":"@article{Popp_Wolf_Mattner_Drummer_2021, title={Energy direction in ultrasonic impregnation of continuous fiber-reinforced thermoplastics}, volume={5}, DOI={10.3390/jcs5090239}, journal={Journal of Composites Science}, author={Popp, J. and Wolf, M. and Mattner, T. and Drummer, D.}, year={2021}, pages={239} }"},"year":"2021","language":[{"iso":"eng"}],"user_id":"68518","_id":"30645","project":[{"name":"TRR 285: TRR 285","_id":"130","grant_number":"418701707"},{"name":"TRR 285 - C: TRR 285 - Project Area C","_id":"133"},{"_id":"145","name":"TRR 285 – C01: TRR 285 - Subproject C01"}],"status":"public","abstract":[{"lang":"eng","text":"As a new and innovative processing method for fabrication for fiber-reinforced thermoplastic composites (CFRTs), the feasibility of ultrasonic welding technology was proven in several studies. This method offers potential for the direct manufacturing of CFRT–metal structures via embedded pin structures. Despite the previous studies, a deeper understanding of the process of energy input and whether fibers work as energy directors and consequently can, in combination with chosen processing parameters, influence the consolidation quality of the CFRTs, is still unknown. Consequently, the aim of this work is to establish a deeper process understanding of the ultrasonic direct impregnation of fiber-reinforced thermoplastics with an emphasis on the fiber’s function as energy directors. Based on the generated insights, a better assessment of the feasibility of direct, hybrid part manufacturing is possible. The produced samples were primarily evaluated by optical and mechanical test methods. It is demonstrated that with higher welding time and amplitude, a better consolidation quality can be achieved and that independent of the process parameters chosen in this study, no significant fiber breakage occurs. This is interpreted as a sign of a gentle impregnation process. Furthermore, based on the examination of single roving and 5-layer set-ups, it is shown that the glass fibers function as energy directors and can influence the transformation of sonic energy into thermal energy. In comparison to industrially available CFRT material, the mechanical properties are weaker, but materials and processes offer potential for significant improvement. Based on these findings, proposals for a direct impregnation and joining process are made."}],"publication":"Journal of Composites Science","type":"journal_article"},{"year":"2021","citation":{"ama":"Kalich J, Füssel U. Influence of the production process on the binding mechanism of clinched aluminum steel mixed compounds. Journal of Manufacturing and Materials Processing. 2021;5:105. doi:10.3390/jmmp5040105","chicago":"Kalich, J., and U. Füssel. “Influence of the Production Process on the Binding Mechanism of Clinched Aluminum Steel Mixed Compounds.” Journal of Manufacturing and Materials Processing 5 (2021): 105. https://doi.org/10.3390/jmmp5040105.","ieee":"J. Kalich and U. Füssel, “Influence of the production process on the binding mechanism of clinched aluminum steel mixed compounds,” Journal of Manufacturing and Materials Processing, vol. 5, p. 105, 2021, doi: 10.3390/jmmp5040105.","short":"J. Kalich, U. Füssel, Journal of Manufacturing and Materials Processing 5 (2021) 105.","mla":"Kalich, J., and U. Füssel. “Influence of the Production Process on the Binding Mechanism of Clinched Aluminum Steel Mixed Compounds.” Journal of Manufacturing and Materials Processing, vol. 5, 2021, p. 105, doi:10.3390/jmmp5040105.","bibtex":"@article{Kalich_Füssel_2021, title={Influence of the production process on the binding mechanism of clinched aluminum steel mixed compounds}, volume={5}, DOI={10.3390/jmmp5040105}, journal={Journal of Manufacturing and Materials Processing}, author={Kalich, J. and Füssel, U.}, year={2021}, pages={105} }","apa":"Kalich, J., & Füssel, U. (2021). Influence of the production process on the binding mechanism of clinched aluminum steel mixed compounds. Journal of Manufacturing and Materials Processing, 5, 105. https://doi.org/10.3390/jmmp5040105"},"page":"105","intvolume":" 5","date_updated":"2022-03-29T12:41:44Z","author":[{"last_name":"Kalich","full_name":"Kalich, J.","first_name":"J."},{"last_name":"Füssel","full_name":"Füssel, U.","first_name":"U."}],"date_created":"2022-03-28T12:22:53Z","volume":5,"title":"Influence of the production process on the binding mechanism of clinched aluminum steel mixed compounds","doi":"10.3390/jmmp5040105","type":"journal_article","publication":"Journal of Manufacturing and Materials Processing","abstract":[{"lang":"eng","text":"The multi-material design and the adaptability of a modern process chain require joining connections with specifically adjustable mechanical, thermal, chemical, or electrical properties. Previous considerations primarily focused on the mechanical properties. The multitude of possible combinations of requirements, materials, and component- and joining-geometry makes an empirical determination of these joining properties for the clinching process impossible. Based on the established and empirical procedure, there is currently no model that takes into account all questions of joinability—i.e., the materials (suitability for joining), design (security of joining), and production (joining possibility)—that allows a calculation of the properties that can be achieved. It is therefore necessary to describe the physical properties of the joint as a function of the three binding mechanisms—form closure, force closure, and material closure—in relation to the application. This approach illustrates the relationships along the causal chain “joint requirement-binding mechanism-joining parameters” and improves the adaptability of the mechanical joining technology. Geometrical properties of clinch connections of the combination of aluminum and steel are compared in a metallographic cross-section. The mechanical stress state of the rotationally symmetrical clinch points is qualified with a torsion test and by measuring the electrical resistance in the base material, in the clinch joint, and during the production cycle (after clinching, before precipitation hardening and after precipitation hardening)."}],"status":"public","project":[{"grant_number":"418701707","_id":"130","name":"TRR 285: TRR 285"},{"name":"TRR 285 - A: TRR 285 - Project Area A","_id":"131"},{"_id":"138","name":"TRR 285 – A04: TRR 285 - Subproject A04"}],"_id":"30643","user_id":"68518","language":[{"iso":"eng"}]}]