INVESTIGATION OF MATERIAL VISCOSITY EFFECT ON THE WAVE FIELDS OF DISPLACEMENTS AND STRESSES USING BOUNDARY ELEMENT METHOD

Abstract

An initial boundary-value problem of three-dimensional theories of elasticity and visco-plasticity is solved by a boundary element method.
A boundary-element procedure is used in combination with an integral Laplace transformation in time. A problem of impacting a prismatic console is considered. The visco-elastic material properties are described by the relations of classic and modified regular models (Maxwell, Voigt, a standard visco-elastic body) or using classic or modified weakly singular models. The numerical results for an elastic case are compared with the corresponding results, obtained by the method of boundarytime elements.