Sound scattering of a plane wave obliquely incident on a cylinder

Abstract

The solution of sound scattering of a plane wave obliquely incident on an isotropic elastic cylinder of infinite length is obtained and verified by experiment. The solution is expressed in terms of phase angles associated with partial scattered waves. It is found that, when the angle of incidence is small, supplementary resonances, which are not present in the case of normal incidence, are excited. The peaks and dips resulting from the resonances appear in the farfield form function ‖f∞‖. Experimental results for several different metals show good agreement with the calculated ones.