The Interaction of an Interface Circular Inclusion with Disconnected Curve and Circular Cavity Impacted by Sh-Wave

Abstract

In this paper, the scattering of SH-waves in a full-space bi-material model with interface inclusions and shallow buried circular cavities in the medium is studied. The paper adopts the idea of “split” and “fit”. The specific methods used in the research process include complex function method, Green function method and multi-pole coordinate moving method. Firstly, the whole space structure are divided into two half-space models along the interface to solve the displacement field in the upper and lower half-space structures, and then the two half-space structures are combined. In order to ensure the continuity of the structure interface, a set of unknown force system is applied to the interface of the bi-material. The unknown force system is solved by interface continuity. Finally, the influence of different medium parameters on dynamic stress concentration factor is analyzed by a specific example.