Unified theory of Rayleigh-angle phenomena for acoustic beams at liquid-solid interfaces

Crack Characterisation in Turbine Disks

“…Leaky Rayleigh waves are generally associated with systems where a bounded beam of ultrasound is incident from a liquid onto the surface of a solid at or near the Rayleigh angle, where in addition to the geometrically reflected wave, a leaky Rayleigh wave is excited by the incident wave (Neubauer, 1973;Bertoni and Tamir, 1973).…”

Detection of Leaky-Rayleigh Waves at Air-Solid Interfaces by Laser Interferometry

“…Leaky-Rayleigh waves have been studied extensively at liquid-solid interface in the last 30 years [1][2][3][4]. Both leaky-Rayleigh and leaky-Lamb waves have found many application in Nondestructive Evaluation, e.g.…”

Reflection of Bounded Acoustic Beams from a Layered Solid

“…The mu1ti1ayered plate with the bottom surface free of traction has a1so been considered in a more recent paper [7]. These and other recent studies have shown that in presence of 1ayers, the interface phenomenon exhibits many features which, in general, can not be extrapo1ated from the simple ha1f space [3] or thin 1ayer approximations [4]. The primary reason for this is the presence of dispersive guided waves which can propagate a10ng the 1ayers with re1ative1y low spatial attenuation.…”

“…A detailed examination of the leaky waves and of their influence on the ref1ected fie1d was carried out in [3] for a uniform ha1f space model ofthe solid. The problem of the mu1tilayered solid consisting of one or more isotropic elastic layers bonded to a homogeneous ha1f space has been considered in a number of papers [4][5][6].…”