SURFACE ACOUSTIC-WAVES NEAR BODIES COATED WITH AN ABSORBING LAYER

Waves which occur on the surface of solid, coated with a thin compress ible layer and which attenuate rapidly with distance from the surface are considered. The absorbing layer is modelled by a non-classical bou ndary condition [1]. It is shown that waves can propagate near the bod y and are localized inside a certain layer whose thickness depends, in particular, on the mechanical properties of the coating.