THE DYNAMIC INTERACTION OF A CRACK WITH A CIRCULAR HOLE UNDER ANTIPLANE LOADING

摘要

This article provides a comprehensive theoretical treatment of the dynamic interaction between a crack and an arbitrarily located circular hole near its tip under incident antiplane shear wave. The theoretical formulations governing the steady-state problem are based upon the use of integral transform techniques and an appropriate superposition procedure. The resulting dynamic stress intensity factor at the main crack is obtained by solving the appropriate singular integral equations using Chebyshev polynomials at different loading frequencies. The solution is verified by comparison with a simplified earlier solution for a special case and numerical examples are provided to show the effect of the location, inclination and size of the hole and the frequency of incident wave upon the dynamic stress intensity factor of the crack.