Scattering of Elastic Waves in Isotropic Media by Spherical Obstacles

摘要

The method of Ting and Truell for studying the scattering of com-pressional elastic waves by simple spherical obstacles has been applied to the analysis of scattering of com-pressional elastic waves by a fluid filled cavity and by layered obstacles in which the core of the layered scatterer is a a) cavity, b) rigid sphere, c) fluid filled cavity, d) elastic material of properties different from those of the surround-ing medium. A general expression for the scattering cross section offered to a compressional wave has been derived.nAn analysis of the scattering of transverse elastic waves by simple spherical obstacles has been performed.