On the role of Anisotropy and Bauschinger-Effect in Sheet Metal Spinning

Abstract

Incremental sheet forming is known for its local forming character where the material is continuously bent and unbent in a multitude of tool passes. By this nature, anisotropy and Bauschinger-Effect might play a significant role in numerical modelling of the process. This paper aims to assess different material modelling techniques by comparing the resulting stress and strain histories of the FEM simulations. Amongst these are Barlats non-quadratic yield locus Yld2000-2d yield criterion and the homogeneous anisotropic hardening model.