2012/05/07 by L. Morini, A. Piccolroaz, Morini, L. +5
Engineering · #FOS: Physical sciences #Fatigue and fracture mechanics #Mathematical Physics (math-ph) #Numerical methods in engineering #Ultrasonics and Acoustic Wave Propagation
paper · pdf · doi:10.48550/arxiv.1205.1321
openalex publication_date 2012/05/07 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The focus of the article is on the 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 function 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 anisotropic media, as piezoceramics or composite materials). This formulation is also fundamental in many multifield theories, where the elastic problem is coupled with other concurrent physical phenomena.