EXPLICIT SOLUTIONS FOR COLLINEAR INTERFACE CRACK PROBLEMS

By combining Stroh's formalism, the method of analytical continuation and the translating technique introduced in this paper, the explicit full domain solutions for the problems of collinear interface cracks between dissimilar anisotropic media have been presented. To define a proper bimaterial stress intensity factor, the full domain solution is applied to the near tip of an interface crack. The results show that the effect of material properties is totally reflected through the oscillation index epsilon, and the bimaterial constants D11, D22 and D33 which have inverse relations with Young's moduli E1, E2 and shear modulus square-root G23G31, respectively. For the purpose of illustration, three typical examples are solved explicitly such as a semi-infinite interface crack, a finite interface crack and two collinear interface cracks.