Konferenzbeiträge / Conferences

2019

Dunlap, A., Aretz, A., Schwedt, A., 2019. Large Chamber-SEM in-situ investigation of bending induced deformation mechanisms (Poster). In: Proceedings of Microscopy Conference 2019, p. 479.

Fohrmeister, V., Klinge, S., Mosler, J., 2019. On the implementation of rate-independent gradient-enhanced crystal plasticity theory. In: Proceedings in Applied Mathematics and Mechanics 19 (1), (90th Annual Meeting of the International Association of Applied Mathematics and Mechanics), Vienna, Austria, DOI: 10.1002/pamm.201900461.

Guhr, F., Barthold F.-J., Meya, R., Tekkaya, A. E., 2019. Load Optimisation for Air Bending in the Context of Damage Reduction. In: Proceedings in Applied Mathematics and Mechanics 19 (1), (90th Annual Meeting of the International Association of Applied Mathematics and Mechanics), Vienna, Austria, DOI: 10.1002/pamm.201900179.

Heitbreder, T., Mosler, J., 2019. On higher-order interface models. In: Proceedings in Applied Mathematics and Mechanics 19 (1), (90th Annual Meeting of the International Association of Applied Mathematics and Mechanics), Vienna, Austria, DOI: 10.1002/pamm.201900315.

Hering, O., Kolpak, F., Dahnke, C., Tekkaya, A. E., 2019. High Strain Flow Curves by Mechanical Tests on Specimens Pre-strained by Forward Rod Extrusion. In: Proceedings of 52nd ICFG Plenary Meeting 2019, Donostia-San Sebastián, Spain, pp. 149-156.

Imran, M., Afzal, M. J., Bambach, M., 2019. Analysis of competition between onset of dynamic recrystallization and damage nucleation during hot forming. In: Proceedings of NUMIFORM 2019: The 13th International Conference on Numerical Methods in Industrial Forming Processes, Portsmouth, USA, pp. 231-234.

Imran, M., Szyndler, J., Afzal, M. J., Bambach, M., 2019. Towards the damage evaluation for hot forming process using Gurson-Tvergaard-Needleman – coupled to dynamic recrystallization. In: AIP Conference Proceedings 2113, Proceedings of the 22nd International ESAFORM Conference on Material Forming, Vitoria-Gasteiz, Spain, DOI: 10.1063/1.5112741.

Langenfeld, K., Möhring, K., Walther, F., Mosler, J., 2019. Regularizational approach for modeling ductile damage. In: MATEC Web of Conferences 300 (12th International Conference on Multiaxial Fatigue and Fracture), Bordeaux, France, DOI: 10.1051/matecconf/201930008008.

Langenfeld, K., Möhring, K., Walther, F., Mosler, J., 2019. On the regularization for ductile damage models. In: Proceedings in Applied Mathematics and Mechanics 19 (1), (90th Annual Meeting of the International Association of Applied Mathematics and Mechanics), Vienna, Austria, DOI: 10.1002/pamm.201900003.

Liebsch C., Li X., Lohmar J., Hirt G., 2019. Influence of process conditions and pore morphology on the closure rate of pores in hot rolling of steel. In: Proceedings of NUMIFORM 2019: The 13th International Conference on Numerical Methods in Industrial Forming Processes, Portsmouth, USA, pp. 271-274.

Münstermann, S., Sparrer, Y., Yao, Y., Lian, J., Meya, R., Clausmeyer, T., Tekkaya, A. E., 2019. Effect of plastic strain and ductile damage on elastic modulus of multiphase steel and its impact on springback prediction. In: AIP Conference Proceedings 2113, Proceedings of the 22nd International ESAFORM Conference on Material Forming, Vitoria-Gasteiz, Spain, DOI: 10.1063/1.5112739.

Nick, M., Mannens, R., Trauth, D., Bergs, T., 2019. Load path modelling in single-step deep drawing of rotationally symmetric cups. In: Procedia Manufacturing 29 (18th International Conference on Sheet Metal), Leuven, Belgium, pp. 520-517.

Pütz, F., Tixier, A., Könemann, M., Lian, J., Münstermann, S., 2019. Unterschiede in der Mikrostruktur von Dualphasenstählen und deren Einfluss auf die Materialeigenschaften. In: Bruchmechanische Werkstoff- und Bauteilbewertung: Beanspruchungsanalyse, Prüfmethoden und Anwendungen, 51. Tagung des DVM-Arbeitskreises Bruchmechanik und Bauteilsicherheit Aachen, Germany, pp. 229-238.

Schowtjak, A., Kusche, C., Meya, R., Al-Samman, T., Korte-Kerzel, S., Tekkaya, A. E, Clausmeyer, T., 2019. Prediction of void evolution in sheet bending based on statistically representative microstructural data for the Gurson-Tvergaard-Needleman model. In: Proceedings of NUMIFORM 2019: The 13th International Conference on Numerical Methods in Industrial Forming Processes, Portsmouth, USA, pp. 311-314.

 

2018

Bergs, T., Nick, M., Feuerhack, A., Trauth, D., Klocke, F., 2018. Numerical-experimental Investigation of Load Paths in DP800 Dual Phase Steel During Nakajima Test. In: AIP Conference Proceedings 1960, Proceedings of the 21st International ESAFORM Conference on Material Forming, Palermo, Italy, DOI: 10.1063/1.5035047.

Bergs, T., Nick, M., Trauth, D., Klocke, F., 2018. Damage Evolution in Nakajima Tests of DP800 Dual Phase Steel. In: IOP Conference Series: Materials Science and Engineering 418 (37th International Deep-Drawing Research Group Conference), Waterloo, Canada, DOI: 10.1088/1757-899X/418/1/012048.

Fohrmeister, V., Díaz, G., Mosler, J., 2018. A strong discontinuity approach to crystal plasticity theory. In: Proceedings in Applied Mathematics and Mechanics 18 (1), (89th Annual Meeting of the International Association of Applied Mathematics and Mechanics), Munich, Germany, DOI: 10.1002/pamm.201800295.

Guhr, F., Barthold, F.-J., Menzel, A., Sprave, L., Liedmann, J., 2018. Sensitivity Analysis of a Non-Local, Gradient Enhanced Damage Model. In: Proceedings in Applied Mathematics and Mechanics 18 (1), (89th Annual Meeting of the International Association of Applied Mathematics and Mechanics), Munich, Germany, DOI: 10.1002/pamm.201800147.

Heitbreder, T., Ottosen, N. S., Ristinmaa, M., Mosler, J., 2018. Investigation of size effects due to material interfaces. In: Proceedings in Applied Mathematics and Mechanics 18 (1), (89th Annual Meeting of the International Association of Applied Mathematics and Mechanics), Munich, Germany, DOI: 10.1002/pamm.201800072.

Hering O., Dahnke, C., Tekkaya, A. E., 2018. Influence of Damage on the Properties of Cold Forged Parts. In: Proceedings of 51st ICFG Plenary Meeting 2018, Columbus, USA, pp. 137-144.

Hering, O., Dahnke, C., Tekkaya, A. E., 2018. Analysing Damage Evolution in Cold Forging by Means of Triaxiality and Lode Parameter. In: Proceedings of the 8th JSTP International Seminar on Precision Forging, Nagoya, Japan, pp. 121-124.

Imran, M., Bambach, M., 2018. Towards the damage evaluation using Gurson-Tvergaard-Needleman (GTN) model for hot forming processes. In: AIP Conference Proceedings 1960, Proceedings of the 21st International ESAFORM Conference on Material Forming, Palermo, Italy, DOI: 10.1063/1.5035063.

Klinge, S., Aygün, S., Bambach, M., 2018. Extended simulations of the roll bonding process. In: Proceedings in Applied Mathematics and Mechanics 18 (1), (89th Annual Meeting of the International Association of Applied Mathematics and Mechanics), Munich, Germany, DOI: 10.1002/pamm.201800257.

Langenfeld, K., Junker, P., Mosler, J., 2018. On the rate-dependent regularization for damage modeling. In: Proceedings in Applied Mathematics und Mechanics 18 (1), (89th Annual Meeting of the International Association of Applied Mathematics and Mechanics), Munich, Germany, DOI: 10.1002/pamm.201800058.

Liebsch C., Hirt G., 2018. Numerical investigation on damage evolution and void closure in hot flat rolling. In: Proceedings of the 11th Forming Technology Forum Zurich 2018, Zurich, Switzerland, pp. 79-84.

Liedmann, J., Barthold, F.-J., 2018. Sensitivity Analysis of Elastoplastic Structural Response Regarding Geometry and External Loads. Proceedings of the 6th European Conference on Computational Mechanics, 7th European Conference on Computational Fluid Dynamics, Glasgow, United Kingdom.

Meya, R., Löbbe, C., Tekkaya, A. E., 2018. Stress State Control by a Novel Bending Process and its Effect on Damage Evolution. In: Proceedings of the 13th Manufacturing Science and Engineering Conference, College Station, USA, DOI: 10.1115/MSEC2018-6349.

Münstermann, S., Pütz, F., Könemann, M., Brinnel, V., Lian, J., 2018. Schädigungsmechanismen in mehrphasigen Karosseriestählen. In: Bruchmechanische Werkstoff- und Bauteilbewertung: Beanspruchungsanalyse, Prüfmethoden und Anwendungen, 50. Tagung des DVM-Arbeitskreises Bruchmechanik und Bauteilsicherheit Paderborn, Germany, pp. 39-49.

Pütz, F., Könemann, M., Lian, J., Münstermann, S., 2018. Einfluss der Materialschädigung auf die Kantenrissempfindlichkeit von Dualphasenstählen. In: Bruchmechanische Werkstoff- und Bauteilbewertung: Beanspruchungsanalyse, Prüfmethoden und Anwendungen, 50. Tagung des DVM-Arbeitskreises Bruchmechanik und Bauteilsicherheit, Paderborn, Germany, pp. 49-59.

Samfaß, L., Walther, F., 2018. Einfluss umformtechnisch induzierter Schädigung auf das Ermüdungsverhalten und die magnetischen Werkstoffeigenschaften des Stahls 16MnCrS5. In: Werkstoffe und Bauteile auf dem Prüfstand, 36. Tagung Werkstoffprüfung, Düsseldorf, Germany, pp. 39-44.

Sprave, L., Menzel, A., 2018. Gradient-enhanced ductile damage – a finite deformation framework with application to DP800. In: Proceedings in Applied Mathematics and Mechanics 18 (1), (89th Annual Meeting of the International Association of Applied Mathematics and Mechanics), Munich, Germany, DOI:10.1002/pamm.201800232.

Tekkaya, A. E., Schowtjak, A., Clausmeyer, T., 2018. Damage in Metal Forming. In: Proceedings of the 8th JSTP International Seminar on Precision Forging, Nagoya, Japan, pp. 21-26.

Wang, S., Pöplau, J., Grüber, M., Hirt, G., 2018. Finite element analysis of caliber rolling process to investigate possibilities to influence the damage evolution. In: Proceedings of the 11th Forming Technology Forum Zurich 2018, Zurich, Switzerland, pp. 108-112.

 

2017

Bambach, M., Klinge, S., 2017. Consistency of dynamic recrystallization models from the perspective of physical metallurgy and continuum mechanics. In: Proceedings in Applied Mathematics and Mechanics 17 (1), (88th Annual Meeting of the International Association of Applied Mathematics and Mechanics), Weimar, Germany, pp. 395 – 396.

Barthold, F.-J., Liedmann, J., 2017. Remarks on Variational Sensitivity Analysis of Elastoplastic Deformations. In: AIP Conference Proceedings 1896, Proceedings of the 20th International ESAFORM Conference on Material Forming, Dublin, Ireland, DOI: 10.1063/1.5008125.Fohrmeister, V., Bartels, A., Mosler, J., 2017. Variational constitutive updates based on hyper-dual numbers – theory of gradient enhanced thermoplasticity. In: Proceedings of the 7th GACM Colloquium on Computational Mechanics, Stuttgart, Germany, pp. 765-768.

Hojda, S., Sturm, K. J. X., Teller, M., Hirt, G., 2017. Remeshing framework for a multiphysics FEM solver exemplified by a damage sensitive extrusion process. In: Proceedings of the 37th SENAFOR, Porto Alegre, Brazil.

Hojda, S., Sturm, K. J. X., Terhorst, M., Klocke, F., Hirt, G., 2017. Damage dependent material properties in a Finite Element Simulation of a hybrid Forward Extrusion process. In: Procedia Engineering 207, Proceedings of the International Conference on the Technology of Plasticity, ICTP 2017, Cambridge, United Kingdom.

Meya, R., Löbbe, C., Tekkaya, A. E., 2017. New bending process with superposition of radial stresses for damage control. In: Proceedings of the 10th Forming Technology Forum Model Based Control for Smart Forming Processes, Enschede, The Netherlands, pp. 81-85.

Münstermann, S., Lian, J., Pütz, F., Könemann, M., Brinnel, V., 2017. Comparative Study on Damage Evolution during Sheet Metal Forming of Steels DP600 and DP1000. In: Journal of Physics: Conference Series, 896, Proceedings of the 36th IDDRG Conference, Munich, Germany, DOI: 10.1088/1742-6596/896/1/012074.

Schowtjak, A., Clausmeyer, T., Tekkaya, A. E., 2017. Analysis of Damage and Fracture Formulations in Cold Extrusion. In: Proceedings of the XIV International Conference on Computational Plasticity - Fundamentals and Applications COMPLAS 2017, Barcelona, Spain, pp. 196-207.Sprave, L., Menzel, A., 2017. Regularisation of gradient-enhanced damage coupled to Finite Plasticity. In: Proceedings of the 7th GACM Colloquium on Computational Mechanics, Stuttgart, Germany, pp. 769-772.

Sprave, L., Menzel, A., 2017. A Multisurface Model for Gradient-Enhanced Damage Coupled to Finite Plasticity. In: Proceedings in Applied Mathematics and Mechanics, 17 (1), (88th Annual Meeting of the International Association of Applied Mathematics and Mechanics), Weimar, Germany, pp. 465-466, DOI: 10.1002/pamm.201710202.