Effect of twinning on the yield surface shape of Mg alloy plates under in-plane biaxial loading

The EVPSC-TDT model is first employed to investigate the yield behavior of a strongly basal textured Mg alloy plate under biaxial loading. The material parameters are calibrated according to experimental uniaxial tension and compression along the rolling and plate normal directions. The EVPSC-TDT model with the calibrated parameters is then employed to conduct various biaxial loadings under plane stress condition. The predicted yield surface …