Numerical Analysis of Torsional Wave Propagation in a Circular Cylinder Composed of Several Cylinders : 2nd Report, Elastic/Viscoplastic Bodies

Abstract

In this paper, a finite difference method based on integration along bicharacteristics is extended for the numerical analysis of the propagation of a two-dimensional torsional wave in an elastic/viscoplastic circular cylinder composed of several cylinders bonded completely at each end. A numerical example is worked out for the case in which torsional impact is applied to the end face of the cylinder. By obtaining numerical results for various mechanical properties of the cylinders, it is shown that the propagation of the reflected and transmitted waves can be investigated in detail by this method, even when viscoplastic deformation takes place.