Elastic fields of a dislocation inclined to a free surface

Abstract

A direct method of calculating the deformation fields of an inclined dislocation in a semi‐infinite medium is developed. A quantitative analysis of the elastic field distribution shows that a free surface localizes elastic fields near the dislocation nuclei and reduces them at large distances. Redistribution of elastic fields results in a sign inversion of some components of the stress tensor. For a screw dislocation in the region close to the surface there appears dilatation with an amplitude comparable with that of an edge dislocation.