Three-dimensional BEM analysis of interface cracks in transversely isotropic bimaterials

N.O. LARROSA; J.E. ORTIZ; A.P. CISILINO

Atenas

Conferencia; International Conference on Boundary Element Techniques BETEQ 2009; 2009

Imperial College, UK y University Nacional Técnica de Atenas, Grecia

A general numerical tool for the analysis of three-dimensional transversely isotropic bimaterial interface cracks is presented in this paper. The proposed tool is based on a multidomain formulation of the BEM with the crack located at the interface. The J-integral is computed along the three-dimensional crack front using the Energy Domain Integral (EDI) methodology. The implementation takes advantage of the efficiency of the boundary integral equation to directly obtain the required displacement derivatives, stress and strain fields from their boundary integral representations. The capability of the procedure is demonstrated by solving an application example.