APPLICATION OF A CONSERVATION INTEGRAL TO AN INTERFACE CRACK INTERACTING WITH SINGULARITIES

A mutual integral, which has the conservation property is applied to the problem of an interfacial crack. The stress intensity factors K1, K2, K3 and T-stress for the problem in an infinite medium are easily obtained by using the mutual integral without solving the boundary value problem. In doing so the auxiliary solutions are required and they are taken from the known asymptotic solutions. This method is amenable to numerical evaluation of the stress intensity factors and T-stress if the interfacial crack in a finite medium is considered.