EXPERIMENTAL AND NUMERICAL INVESTIGATION OF THE INTERACTION OF RAYLEIGH SURFACE-WAVES WITH CORNERS

This paper presents the results of an experimental and numerical inves tigation of the interaction of Rayleigh surface waves with corners. Th e experimental portion uses a dual probe laser interferometer to measu re the interaction of a normal incident Rayleigh wave with corners of varying angles. These incident Rayleigh waves are optically generated with a pulse laser. The numerical procedure uses the frequency domain approach of the boundary element method (BEM) combined with an inverse Fourier transformation to calculate surface displacements. The experi mental and numerical results examine the scattered wave fields as a fu nction of corner angle. In addition, the experimentally obtained value s are compared with the numerically predicted results and good agreeme nt is obtained.