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Last Update: 17.07.2019

ak-werkstoffe 01

The characterization and description of the material behavior is an important basis for the process design of sheet-bulk metal forming. The primary goal of the working group is to bring together the various investigations of the subprojects regarding the material behavior. The working group Materials aims at both the projects investigating processes, as well as those characterizing material properties.

Within the third funding period, the work group will invite to moderated discussions in the field of materials to discuss the project results. Another focus will be set on qualifying the new project workers in the fields of metallography and scanning electron microscopy as well as material testing and fatigue. Therefore, targeted workshops will be carried out regarding these topics and state-of-the-art methods.



Head of Working Group




    • Wernicke, S.; Hahn, M.; Gerstein, G.; Nürnberger, F.; Tekkaya, A.: Strain path dependency in incremental sheet-bulk metal forming. In: International Journal of Material Forming, (2020), Paris: Springer-Verlag France SAS, part of Springer Nature, published


    • Clausmeyer, T.; Nürnberger, F.; Gutknecht, F.; Isik, K.; Besserer, H.; Gerstein, G.; Wernicke, S.; Schulte, R.; Tekkaya, A.; Merklein, M.; Maier, H.: Analyse und Modellierung von Schädigung und Versagen in der Blechmassivumformung. In: Industriekolloquium, (2019), accepted
    • Lyu, T.; Löhnert, S.; Wriggers, P.: 3D dynamic crack under cyclic loading using XFEM: Numerical treatment. In: Proceedings in Applied Mathematics and Mechanics, 19(2019), Wiley, published
    • Caspari, M.; Landkammer, P.; Steinmann, P.: Improving a non-invasive form finding approach to forming processes. In: Yannis Korkolis, Brad Kinsey, Marko Knezevic, and Nikhil Padhye (Edt.): Proceedings of NUMIFORM 2019: The 13th International Conference on Numerical Methods in Industrial Forming Processes, (2019), published


    • Besserer, H.; Rodman, D.: Micro-Scale Residual Stress Measurement Using Focused Ion Beam Techniques and Digital Image Correlation. In: QDE2018, International Conference on Quenching and Distortion Engineering, Nagoya, Japan, 27.11.-29.11.18, (2018), pp. 32


    • Gerstein, G.; Besserer, H.; Nürnberger, F.; Barrales-Mora, L. A.; Shvindlerman, L. S.; Estrin, Y.; Maier, H.: Formation and growth of voids in dual-phase steel at microscale and nanoscale levels. In: Journal of Materials Science, 52(2017)8, pp. 4234-4243
    • Landkammer, P.; Söhngen, B.; Steinmann, P.; Willner, K.: On gradient-based optimization strategies for inverse problems in metal forming. In: Menzel, A. (Edt.): GAMM-Mitteilungen - Themenheft: Computational Manufacturing, 40(2017), pp. 27-56
    • Gerstein, G.; Clausmeyer, T.; Gutknecht, F.; Tekkaya, A.; Nürnberger, F.: Analysis of dislocation structures in ferritic and dual phase steels regarding continuous and discontinuous loading paths. In: 146th Annual Meeting & Exhibition Supplemental Proceedings (Edt.): The Minerals, Metals & Materials Society TMS 2017, 146(2017), Cham, Switzerland: Springer, pp. 203-210
    • Besserer, H.; Rodman, D.: Fatigue Behavior of Sheet-Bulk Metal Formed Components. In: MS&T17 - Materials Science and Technology 2017, Pittsburgh, 08.-12.10.2017, (2017), pp. 859–864
    • Gerstein, G.; Isik, K.; Gutknecht, F.; Sieczkarek, P.; Ewert, J.; Tekkaya, A.; Clausmeyer, T.; Nürnberger, F.: Microstructural characterization and simulation of damage for geared sheet components. In: 36th IDDRG Conference on Materials Modelling and Testing for Sheet Metal Forming (Edt.): Journal of Physics Conference Series, 896(2017), München, Deutschland, published
    • Gerstein, G.; Clausmeyer, T.; Isik, K.; Nürnberger, F.; Tekkaya, A.; Bruchanov, A.; Maier, H.: Experimental analysis of anisotropic damage in dual-phase steel by resonance measurement. In: International Journal of Damage Mechanics , 26(2017)8, pp. 1147-1169


    • Gerstein, G.; Nürnberger, F.; Maier, H.: Evolution of void shape anisotropy in deformed bcc steels. In: TMS (Edt.): TMS 145. Annual Meeting, Proceedings of the EPD Congress, (2016), Hoboken, New Jersey: John Wiley & Sons, Inc., pp. 173-179



      • 12.02.2019: Caspari, M.: Node-Based Form Finding with alternating Number of Nodes caused by Remeshing, Havanna, Kuba
      • 18.02.2019: Lyu, T.; Löhnert, S.; Wriggers, P.: XFEM and Gradient-enhanced Damage Model for 3D Dynamic Crack Problem under Cyclical Loading, GAMM 2019, Vienna, Austria
      • 26.02.2019: Caspari, M.: Improving a Node-Based Form Finding Approach to Forming Processes, Porthsmouth, USA
      • 12.06.2019: Lyu, T.; Löhnert, S.; Wriggers, P.: 3D Dynamic Crack Simulation with Extended Finite Element Method, CFRAC2019, Braunschweig, Germany
      • 03.09.2019: Lyu, T.; Löhnert, S.; Wriggers, P.: 3D Dynamic Crack Simulation with Extended Finite Element Method, COMPLAS2019, Barcelona, Spain