On the Dynamics of the Oscillating Moving Point Load Acting on the System Comprising a Pre-stressed Layer and Pre-stressed Half-Space

Abstract

Within the scope of the piecewise homogeneous body model by the use of the 3D linearized theory of elastic waves in initially stressed bodies the attempt is made for the study of the dynamics of the point located oscillating moving load acting on the system consisting of the pre-stressed covering layer and pre-stressed half-space. The solution method and the algorithm for attaining the numerical results are developed and employed. The numerical results on the stress distribution are presented and discussed. In particular, it is established that the absolute values of the normal stress acting on the interface plane increase with moving velocity of the oscillating point-located load.