Stresses Formed near a Crack in Half Space in Contact with Liquid under Harmonic Loading

摘要

We study a three-dimensional bimaterial object formed by an elastic half space with cracks and a liquid. The crack surfaces are subjected to the action of harmonic loads. The problem is reduced to the solution of a system of two-dimensional boundary integral equations of Helmhoitz-potential type for the unknown jumps of displacements on the crack surfaces. We analyze the case of a circular crack whose lips are subjected to the action of stationary loads. The inertial effects in the vicinity of the crack contour are investigated.