Boundary Element Assessment of Three-dimensional Bimaterial Interface Cracks

J.E. ORTIZ; A.P. CISILINO

Fracture of Composites

WIT Press

Lugar: Southampton, UK; Año: 2005; p. 249 - 283

A general numerical tool for the analysis of three-dimensional bimaterial interface cracks is presented in this chapter. The proposed tool is based on a multidomain formulation of the Boundary Element Method (BEM), with the crack located at the interface of the domain. Mixed mode stress intensity factors are computed along the three-dimensional crack fronts using the Energy Domain Integral (EDI) methodology and decoupled via the Interaction Integral. The capability of the procedure is demonstrated by solving a number of examples. The presentation of an application example, namely the three-dimensional analysis of a fiber/matrix debond interface crack under transverse loading closes the chapter.