Calibration of a strain path change model for a dual phase steel

Dual phase steels are largely used to form automotive structural parts by deep drawing involving complex loading paths, which influence the material mechanical behavior and formability, as well subsequent service life. The aim of this paper is investigate calibration a strain path change model from an experimental database simple shear tests. enhanced Homogeneous Anisotropic Hardening (e-HAH) advanced constitutive that can take account on using stress-based indicator. performance such depends highly parameter identification database. dual steel DP600 first characterized under different linear uniaxial biaxial tension shear, in order quantify initial anisotropy. Then, changes investigated during sequences compression. Finally, parameters e-HAH identified optimised highlighted with use paths ranges.