Modelling the role of slips and twins in magnesium alloys under cyclic shear

Magnesium alloys under cyclic shear show different deformation behaviour from that under cyclic tension–compression, for example, symmetry vs. asymmetry of stress–strain curves. Using the Twinning–DeTwinning (TDT) model, we studied the role of different deformation mechanisms, slip systems, twinning and detwinning, in shear deformation behaviour of magnesium alloys. The results indicate that the nearly symmetrical shear stress-shear strain …