Micromechanical Modeling of Evolving Anisotropy in AZ31 Mg for Various Strain Paths

Accurate description of the mechanical response of AZ31 Mg requires consideration of its strong anisotropy both at the single crystal and polycrystal level and their evolution with plastic deformation. In this paper, we apply the self-consistent mean field model developed by Lebensohn and Tomé [1] and the VPSC code to the description of the behavior of a rolled AZ31 plate. The predictive capabilities of the model are demonstrated. It is shown that with the same set of parameters, which were identified based on a few mechanical tests, it is possible to predict with great accuracy both the mechanical stress-strain response and texture evolution for loading paths that were not used for calibration, such as off-axis loadings, and simple shear loadings.