Modeling induced flow anisotropy and phase transformations in air hardening steels

Publikation: Beiträge in ZeitschriftenZeitschriftenaufsätzeForschungbegutachtet

Authors

  • Clemens Barthel
  • B. Klusemann
  • Ralf Denzer
  • Till Clausmeyer
  • B. Svendsen

In this work a material model for hardening development in sheet metals during forming processes involving loading path changes is formulated. In particular, such hardening development is due to the formation and interaction of dislocation microstructures in the material, resulting in an evolution in the size, center and shape of the yield surface. Such yield surface evolution is accounted for in the current model with the help of an evolving structure tensor. The model is intended for an air hardening steel and takes therefore thermomechanics into account in particular phase transformations from ferrite to austenite and from austenite to martensite. As numerical examples a tension shear test and a heating-cooling sequence are simulated.

OriginalspracheEnglisch
ZeitschriftKey Engeneering Materials
Jahrgang504-506
Seiten (von - bis)443-448
Anzahl der Seiten6
ISSN1662-9795
DOIs
PublikationsstatusErschienen - 2012
Extern publiziertJa