Interfacial edge dislocations and dislocation walls in anisotropic two−phase media

摘要

Explicit expressions are obtained for the displacement and stress fields of an edge dislocation in the plane interface in a two−phase anisotropic medium. These expressions are used to calculate the stress field of an infinite vertical array of equally spaced interfacial edge dislocations. It is shown that in a two−phase medium, either anisotropic or isotropic, an edge−dislocation wall at or near the interface has a long−range stress field, in contrast to the result for a single−phase medium.