Abstract
To serve the purpose of controlling the microstructure of metal materials, it is critical to build a quantitative model to predict static recrystallization behavior. The first step to develop this model would be to relate cold working conditions to the remained stress and strain in a specimen. In order to visualize stress and strain distributions in single crystal iron specimens after tensile tests, crystal plasticity finite element method(CP-FEM) which takes crystalline anisotropy into account is incorporated in the UMAT user subroutine of the commercial software package ABAQUS. To estimate the parameters in CP-FEM, single crystal iron tensile tests with various crystal orientations are conducted and strain-stress curves are derived based on the digital image correlation toolbox NCORR. Based on abundant experimental, parameters in CP-FEM are determined and good agreement with the experiments is derived.
