Abstract
The elastic fields of a circular glide dislocation loop lying in the interface separating two isotropic solids are obtained. It is shown that the interface transmits normal tractions in the form of a Dirac delta function. A unified formulation which permits direct calculation for the energy of a variety of interface dislocation configurations is presented. The energy of a loop segment from which the energy of any shape loop may be obtained through integration is derived. Such integration is carried out for a circular loop and comparisons are made with straight dislocations. The force due to line tension is also given, with certain intricacies pointed out.
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