A non-linear elasticity theory was developed in which the elastic energy was a periodic function of 5 strain components in 3 dimensions. Dislocation formation under an applied shear strain in 1- and 2 phase alloys was then studied. In the 2-phase case, loops of edge dislocation appeared in the interface regions, with increasing strain. They grew into softer regions, gliding along the Burgers vector. The results were crucial to the understanding of the mechanical properties of 2-phase solids.

Dislocation Formation and Plastic Flow in Binary Alloys in Three Dimensions. A.Minami, A.Onuki: Physical Review B, 2005, 72[10], 100101 (4pp)