Study of surface acoustic waves guided by a metallic cylindrical wedge using laser-ultrasonic techniques

It was demonstrated with laser-ultrasonic techniques that because of the truncation which exists in actual manufactured wedges, dispersive guided acoustic waves propagate along the tip of a straight wedge. The purpose of this paper is to report an experimental study dealing with wedge acoustic waves travelling along the tip of a free cylindrical metallic wedge. In addition to the effect of the apex truncation, the influence of the surface curvature on the phase velocity dispersion is particularly demonstrated experimentally