Konferenzbeiträge / Conferences

2018

A. E. Tekkaya, Q. Yin, H. Traphöner, R. Meya, O. Hering, F. Kolpak, S. Wernicke, S. Heibel, T. Clausmeyer
Advanced Applications of Experimental Mechanics in Metal Forming.
18th International Conference on Experimental Mechanics, 4th of July 2018, Brüssel, Belgien

K. Langenfeld, P. Junker, J. Mosler
Rate-dependent regularization for material softening.

10th European Solid Mechanics Conference, 02.-06. Juli 2018, Bologna, Italien

S. Wang, J. Pöplau, M. Grüber, G. Hirt
Finite element analysis of caliber rolling processes to investigate possibilities to influence the damage evolution
11th Forming Technology Forum 2018, 2-3 July 2018, Zurich, Switzerland

C. Liebsch, G. Hirt
Numerical investigation on damage evolution and void closure in hot flat rolling.
11th Forming Technology Forum 2018, 2-3 July 2018, Zurich, Switzerland

R. Meya, C. Löbbe, A. E. Tekkaya
Stress state control by a novel bending process and its effect on damage evolution.
MSEC 2018, College Station, Texas, USA

J. Liedmann, F.-J. Barthold
Sensitivity Analysis of Elastoplastic Structural Response Regarding Geometry and External Loads.
6th ECCM 7th ECFD, 11-15 June 2018, Glasgow, UK

V. Fohrmeister, J. Mosler
Numerically efficient implementation of rate-independent (gradient enhanced) crystal plasticity.
6th European Conference on Computational Mechanics (ECCM 6), 11.-15.06.18, Glasgow, UK

R. Ostwald, E. Kuhl, A. Menzel
Implementation of a gradient-enhanced damage model – a heat equation-based framework.
6th European Conference on Computational Mechanics (ECCM 6), 11.-15.06.2018, Glasgow, UK

M. Nick, T. Bergs, D. Trauth, F. Klocke
Damage Evolution in Nakajima Tests of DP800 Dual Phase Steel.
IDDRG Conference, 03.-07.06.2018, Waterloo, Kanada

S. Heibel, T. Dettinger, W. Nester, T. Clausmeyer, A. E. Tekkaya
Damage mechanisms and mechanical properties of 2 high-strength multiphase steels.
Materials 2018, 30 - 31 May 2018, Veldhoven, Netherlands

M. Nick, A. Feuerhack, D. Trauth, F. Klocke
Numerical-experimental Investigation Of Load Paths in DP800 Dual Phase Steel During Nakajima Test.
ESAFORM, 23.-25.04.2018, Palermo, Italien

M. Imran, M. Bambach
Towards the damage evaluation using Gurson-Tvergaard-Needleman (GTN) model for hot forming processes.
21st ESAFORM 2018, 23-25 April 2018, Palermo, Italy

V. Fohrmeister, G. Díaz, J. Mosler
A strong discontinuity approach to crystal plasticity theory.
Annual Meeting of GAMM, TU München, 19.-23.03.18

S. Klinge, S. Aygün, M. Bambach
Continuum-mechanical aspects of modeling the dislocation motion including the effects of chemical impurities.
GAMM 2018

F. Guhr, F.-J. Barthold, A. Menzel, L. Sprave, J. Liedmann
Sensitivity Analysis of a Non-Local, Gradient Enhanced Damage Model.
89th GAMM Annual Meeting,19-23 March 2018, Munich

L. Sprave, A. Menzel
Gradient-enhanced ductile damage – a finite deformation framework with application to DP800.
Joint Annual Meeting of GAMM, TU Munich, 19.-23.03.2018

K. Langenfeld, P. Junker, J. Mosler
On the rate-dependent regularization for damage modeling.
89th GAMM Annual Meeting, 19-23. März 2018, München

C. F. Kusche, M. Freund, T. Reclik, U. Kerzel, T. Al-Samman, S. Korte-Kerzel
Damage in DP Steel - statistical in-situ analysis of brittle and ductile mechanisms prior to the onset of fracture.
DPG Frühjahrtagung, Berlin, 12. März 2018

T. Reclik, C. F. Kusche, U. Kerzel, T. Al-Samman, S. Korte-Kerzel
Damage Classification in DP Steel Using Neural Networks.
DPG Frühjahrstagung Berlin, 8. März 2018

O. Hering,  C. Dahnke, A. E. Tekkaya
Influencing the Evolution of Damage in Cold Forging.
8th International Seminar on Precision Forging 2018, 5-8 March 2018, Nagoya, Japan

A. Schowtjak, T. Clausmeyer, A. E. Tekkaya
Damage in Metal Forming.
8th JSTP International Seminar on Precision Forging (8th ISPF), 5 March 2018, Nagoya, Japan

F. Pütz, M. Könemann, J. Lian, S. Münstermann
Einfluss der Materialschädigung auf die Kantenrissempfindlichkeit von Dualphasenstählen
50. Tagung des DVM-Arbeitskreises Bruchmechanik und Bauteilsicherheit Paderborn 20.02.2018

S. Münstermann, F. Pütz, M. Könemann, V. Brinnel, J. Lian
Schädigungsmechanismen in mehrphasigen Karosseriestählen.
50. Tagung des DVM-Arbeitskreises Bruchmechanik und Bauteilsicherheit Paderborn 20.02.2018

C. F. Kusche, M. Freund, T. Reclik, U. Kerzel, T. Al-Samman, S. Korte-Kerzel
Statistical in-situ analysis of ductile damage mechanisms in DP800 dual-phase steel
International Symposium Nano and Micro Scale Damage in Metals, 7.–9. Februar 2018, Utrecht

 

2017

R. Meya, C. Löbbe, O. Hering, A. E. Tekkaya
New bending process with superposition of radial stresses for damage control.
10th Forming Technology Forum 2017, 12-13 October 2017, Enschede, The Netherlands

L. Sprave, A. Menzel
Regularisation of gradient-enhanced damage coupled to finite plasticity
7th GACM Colloquium on Computational Mechanics, 11.-13.10.2017, Stuttgart University

V. Fohrmeister, A. Bartels, J. Mosler
Variational constitutive updates based on hyper-dual numbers - theory of gradient enhanced thermoplasticity
GACM Colloquium on Computational Mechanics, 11.-13.10.17, University of Stuttgart

A. Hojda, K.J.X. Sturm, M.Teller, G. Hirt
Remeshing Framework for a multiphysics FEM solver exemplified by a damage sensitive Extrusion process.
37th SENAFOR, 4-6 October 2017, Porto Alegre/RS, Brasil

S. Hojda, K. J.X. Sturm, M. Terhorst, F. Klocke, G. Hirt
Damage dependent material properties in a Finite Element Simulation of a hybrid Forward Extrusion process.
International Conference on the Technology of Plasticity, ICTP 2017, 17-22 September 2017, Cambridge, United Kingdom

A. Schowtjak, T. Clausmeyer, A. E. Tekkaya
Analysis of Damage and Fracture Formulations in Cold Extrusion.
XIV International Conference on Computational Plasticity, COMPLAS 2017, 5-7 September 2017, Barcelona, Spain

A. E. Tekkaya, N. Ben Khalifa, O. Hering, R. Meya, S. Myslicki, F. Walther
Forming-induced damage and its effects on product properties.
67th CIRP General Assembly 2017, 22 August 2017, Lugano, Switzerland

S. Münstermann, J. Lian, F. Pütz, M. Könemann, V. Brinnel
Comparative Study on Damage Evolution during Sheet Metal Forming of Steels DP600 and DP1000.
36th IDDRG Conference - Materials Modelling and Testing for Sheet Metal Forming, 2-6 July 2017, Munich, Germany

J. Liedmann, F.-J. Barthold
Design Exploration based upon Internal Structure of Materially Nonlinear Response Sensitivities.
12th World Congress of Structural and Multidisciplinary Optimisation, 5 - 9 June 2017, Braunschweig, Germany

F.-J. Barthold, J. Liedmann
Remarks on Variational Sensitivity Analysis of Elastoplastic Deformations.
20th International ESAFORM Conference on Material Forming, 26 - 28 April 2017, Dublin, Ireland

T. Heitbreder, N. S. Ottosen, M. Ristinmaa, J. Mosler
On damage modeling of material interfaces: Numerical implementation and computational homogenization.
CMAME, März 2017

L. Sprave, A. Menzel
A multisurface model for gradient-enhanced damage coupled to finite plasticity.
Annual Meeting of GAMM, 06.-10.03.2017, TU Ilmenau und Bauhaus Universität Weimar

V. Fohrmeister, A. Bartels, J. Mosler
A generic variational constitutive update based on hyper-dual numbers: Application to ther-momechanical gradient enhanced plasticity
Annual Meeting of GAMM, 06.-10.03.2017, TU Ilmenau/Bauhaus Universität Weimar