The Yoffe-type moving tubular interface crack in a hollow composite cylinder with finite length

Abstract

In this paper, the problem of a composite hollow cylinder with a constant-velocity Yoffe-type moving tubular interface crack is considered. For four frequently encountered constraint edges, i.e. free-free, clamped-clamped, free-clamped, or clamped-free edges, the mixed boundary value problem associated with a mode-III crack is reduced to a Cauchy kernel singular integral equation by applying the Fourier transform. Then, the numerical results of stress intensity factors (SIFs) are obtained by the Lobatto–Chebyshev quadrature technique from the singular integral equation. Numerical results of SIFs show that there exists a coupled effect of geometrical and physical parameters on the interfacial fracture behavior, which clearly relates to the selection of constraint edges. It is also observed that SIF increases as the crack moving velocity increases for the free–free, free–clamped, or clamped–free edges, and SIF is a decreasing function of the crack moving velocity for the clamped–clamped edge.