ABSTRACT

This chapter considers the two-dimensional interface crack problem for anisotropic bodies in the Comninou formulation. It is established that, as in the isotropic case, properly incorporating contact zones at the crack tips avoid contradictions connected with the oscillating asymptotic behavior of physical and mechanical characteristics leading to the overlapping of materials. The comparison with the results of previous authors shows that the integral equations corresponding to the interface crack problems in the anisotropic and isotropic cases are actually the same from the point of view of the theoretical and numerical analysis. However, there are described some new effects concerning the stress intensity coefficients in the anisotropic case. In the isotropic case the normal stresses are bounded when a point approaches the end points ±L along the cut line from outside.