Lehrstuhl für Fertigungstechnologie, Universität Erlangen-Nürnberg

Fundamental Investigations on the Experimental Determination and on the Modeling of Yield Loci at Elevated Temperatures



Datum: 03.03.2008


Author


Reporter

  • Prof. Dr.-Ing. Dr.-Ing. E.h. mult. Dr. h.c. mult. Manfred Geiger
  • Prof. em. Dr.-Ing. Dr. h.c. mult. Dr.-Ing. E.h. Reiner Kopp

Within this thesis the theoretical and experimental fundamentals for the characterization of sheet metals under biaxial tensile stress conditions and at elevated temperatures have been built. By developing a novel setup in combination with an independent strategy for the evaluation of the onset of yielding the experimental determination of yield loci has been enabled. With the magnesium wrought alloy AZ31 as reference material various yield criteria have been investigated that build the basis for the implementation of the modeling of material behavior in the finite-element-simulation.