Elastic impact of spheres on sandwich plates

Abstract

An integro-differential equation for the elastic impact of spheres on soft core sandwich plates is analytically derived. The impact equation is numerically integrated and the displacement of the sandwich plate underneath the point of impact is calculated as a function of time. Fairly good agreement with experimental results obtained by the author was found. It is emphasized that, physically, the impact response of a sandwich plate is fundamentally different from the response of an isotropic plate.