EVOLUTION OF A SHOCK PULSE DURING ITS PROPAGATION OVER COMPOSITE ELASTIC SYSTEMS.

The purpose of this paper is to clarify the nature of the change in the initial perturbation during its propagation over composite elastic systems of periodic structure and to estimate the applicability of the results obtained to describe longwave perturbations. By using integral transforms with subsequent inversion of the transforms, the longwave asymptote is found for a system of perturbations being propagated along the axis because of a longitudinal impact. The wave process is numerically investigated in the time interval and in the domain of the perturbations by using an explicit finite-difference scheme.