In-plane stress analysis of dissimilar materials with multiple interface cracks

In the present paper, the behavior of an interface crack in two bonded dissimilar materials subjected to in-plane loading is studied. First, dislocation solution is presented to construct integral equations for dissimilar medium weakened by several interface cracks. These equations are of Cauchy singular type at the location of dislocation, which are solved numerically to obtain the dislocation density on the faces of the cracks. The dislocation solution is then applied to calculate the mixed mode stress intensity factors of multiple interface cracks. The effects of nonhomogeneity parameter on the stress intensity factors are investigated.