Identification of material parameters based on a homogenization method using EBSD data

Phan Van Tung


In this paper, an optimized homogenization method using uniaxial tensile tests to estimate material parameters in the micromechanical model of a heat treated DC04 steel is introduced. The method is based on a representative element model for the macroscopically homogeneous material. A Taylor polycrystal model is applied at integration points and simultaneously accounting for experimental electron backscatter diffraction (EBSD) data. Computational macro stress-strain curves are compared to experimental stress-strain curves to estimate the parameters of the DC04 steel at the different angles to rolling direction (RD).


Heat treated DC04 steel; elastoviscoplastic material; finite element method; Taylor type polycrystal model; EBSD texture data; MTEX toolbox

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