Transient response of a plane rigid inclusion to an incident wave in an elastic solid

The problem of interaction of an impact wave with a plane rigid inclusion of given mass in a 3-D infinite elastic solid is considered by the time-domain boundary integral equations method. Perfect bonding is assumed between the elastic matrix and the moving inclusion. The time-stepping/collocation approach for the discretization of equations, which takes into account the structure of the solution at the edge of the inhomogeneity, is applied. Under normal incidence of an elastic wave on a circular disk-shaped inclusion its dynamic translation and the parameters of the dynamic stress concentration for different inclusion masses and profiles of the generating wave have been computed.