THE MODE-III AXISYMMETRICAL CRACK PROBLEM IN A NONHOMOGENEOUS INTERFACIAL REGION BETWEEN HOMOGENEOUS HALF-SPACES

In this study, the mode III axisymmetric crack problem in a non-homoge neous interfacial region between two homogeneous half-spaces is consid ered. The shear modulus of the interfacial layer is assumed to be mu(2 )(z) = mu(0)e(mz). It is also assumed that this shear modulus varies c ontinuously between that of the two half-spaces. By using the Hankel t ransform technique the problem is reduced to a singular integral equat ion. The problem is solved for various material combinations, crack ge ometries and for three different sets of crack surface tractions, and the corresponding stress intensity factors are tabulated.