A PAIR OF EQUAL COLLINEAR INTERFACIAL CRACKS BETWEEN BONDED DISSIMILAR FIXED ISOTROPIC LAYERS

摘要

The problem of a pair of equal collinear Griffith cracks propagating with constant velocity under antiplane shear stress at the interface of two bonded dissimilar fixed isotropic layers has been considered. The method of Fourier transforms is employed and the problem is reduced to the solution of a singular integral equation, which has finally been solved numerically by using Chebyshev polynomials. The stress intensity factors at the crack tips and the crack opening displacement have been calculated numerically for some particular cases and displayed graphically.