NONSTATIONARY PROBLEM OF INCIDENCE OF AN ELASTIC WAVE ON A COMPLIANT INCLUSION IN THE FORM OF AN ELLIPTIC DISK

摘要

By solving boundary integral equations by the mapping method in combination with the step-by-step method of constructing time dependences, we have investigated the behavior of a compliant disk-shaped elliptic inclusion in a three-dimensional field of pulse elastic waves. In the case of a symmetric problem and nonstationary perturbation with the profile of the Heaviside function, we have established the influence of the eccentricity of the inclusion and the ratio of the elastic moduli of the matrix medium and inclusion on the dynamic stress intensity factor in the vicinity of the inclusion.