Lehrstuhl für Fertigungstechnologie, Universität Erlangen-Nürnberg

Process oriented material characterization for numerical simulation of sheet metal forming operations

Project Status: finished


The aim of this research project consists of the application accuracy improvement of the numerical simulation with coexistent increase of the effectivity of the material characterization. With a part‑specific choice of the testing methods, the use of additional information of standardized tests (e.g. continuous progress of the Lankford coefficient) as well as by a material-specific modelling of yield loci and subsequent yield loci (e.g. tailored yield criterion exponent / m-value) results a rise of the prediction quality of numerical sheet metal forming processes and additional a time and cost reduction during the experimental value determination. The obtained findings are directly transferable and provide therefore a straightaway benefit for small and medium-sized businesses.


Characteristic testing methods for modelling of yield loci

Research Groups



    • Degner, J.; Herrmann, J.; Junker, F.; Berendt, E.; Merklein, M.:
      Leichtbauwerkstoffe für den modernen Automobilbau.
      Zeitschrift Konstruktion 3(2018), pp. 50-54

    • Merklein, M.; Lenzen, M.; Brosius, A.; Küsters, N.:
      Prozessorientierte Werkstoffcharakterisierung für die numerische Auslegung von Blechumformoperationen.
      EFB-Forschungsbericht Nr. 484, Hannover: EFB, : , 2018

    • Lenzen, M.; Merklein, M.:
      Improvement of the drawing ratio of the anisotropic material behaviour under near plane strain conditions for DP600 characterized in elliptic hydraulic bulge test.
      In: NUMISHEET Conference (Edtr.): 2018, pp. 1-6


    • Lenzen, M.; Suttner, S.; Merklein, M.:
      Characterisation of strain rate dependency of sheet metals under biaxial loading with a strain rate controlled hydraulic bulge test.
      In: R. H. Schmitt, G. Schuh (Edtr.): 7. WGP-Jahreskongress Aachen, 5.-6. Oktober 2017, Apprimus, 2017, pp. 535-540

    • Lenzen, M.; Merklein, M.:
      Analysis of the Lankford Coefficient Evolution at Different Strain Rates for AA6016-T4, DP800 and DC06.
      In: Dermot Brabazon, Sumsun Naher and Inam Ul Ahad (Edtr.): AIP Conference Proceedings 1896(2017)160001, 2017, pp. 1-6

    Letztes Update: 03.07.2018