Waves Lyava in an elastic layer with a microroughened border on an elastic half-space

For the purpose of creating scientific and technical prerequisites for the effective solution of inverse problems in defectoscopy and structurometry, physical models of an elastic layer and its boundary with an elastic half-space have been developed, considering acoustic contact disruption. Their characteristics have been analyzed under boundary conditions within the «linear slip» approximation. Conditions for the propagation of Lyava waves in the region of the boundary of solid media with disturbed acoustic contact are considered. Dispersion equations for determining phase velocity of the Lyava wave are obtained. Examples of numerical solutions of obtained dispersion equations for values of parameters of models relevant for structurometry, flaw detection and acoustic measurements in industry are given.

Authors: K. E. Abbakumov , I. G. Sidorenko

Direction: Physics

Keywords: inhomogeneous elastic layer, elastic half-space, disturbed acoustic contact, linear sliding, Lyava waves, dispersion equation

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