L. Morini, A. Piccolroaz, G. Mishuris, E. Radi
The focus of the article is on analysis of a semi-infinite crack at the interface between two dissimilar anisotropic elastic materials, loaded by a general asymmetrical system of forces acting on the crack faces. Recently derived symmetric and skew-symmetric weight functions matrices are introduced for both plane strain and antiplane shear cracks, and used together with the fundamental reciprocal identity (Betti formula) in order to formulate the elastic fracture problem in terms of singular integral equations relating the applied loading and the resulting crack opening. The proposed compact formulation can be used to solve many problems in linear elastic fracture mechanics (for example various classic crack problems in homogeneous and heterogeneous media). This formulation is also fundamental in many multiphysics applications, where the elastic problem is coupled with other concurrent physical phenomena.
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http://arxiv.org/abs/1205.1321
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