Quasidislocations in anisotropic bicrystals

Abstract

Weertman has recently pointed out that an elastic line singularity of dislocation/force line character but of zero Burgers vector and zero line force can move at the Stoneley velocity along the interface in a bicrystal of two different isotropic materials [J. Weertman, Phys. Rev. Lett. 93, 2655Lett. 93, (2004]. The theory of this quasidislocation is generalized to the case of anisotropic bicrystals. The quasidislocation-Stoneley wave connection remains generally true and is further elucidated.