Possible second-order nonlinear interactions of plane waves in an elastic solid

Korneev, V.A. and Demcenko, A. (2014) Possible second-order nonlinear interactions of plane waves in an elastic solid. Journal of the Acoustical Society of America, 135(2), pp. 591-598. (doi: 10.1121/1.4861241) (PMID:25234869)

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There exist ten possible nonlinear elastic wave interactions for an isotropic solid described by three constants of the third order. All other possible interactions out of 54 combinations (triplets) of interacting and resulting waves are prohibited, because of restrictions of various kinds. The considered waves include longitudinal and two shear waves polarized in the interacting plane and orthogonal to it. The amplitudes of scattered waves have simple analytical forms, which can be used for experimental setup and design. The analytic results are verified by comparison with numerical solutions of initial equations. Amplitude coefficients for all ten interactions are computed as functions of frequency for polyvinyl chloride, together with interaction and scattering angles. The nonlinear equation of motion is put into a general vector form and can be used for any coordinate system.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Demcenko, Dr Andriejus
Authors: Korneev, V.A., and Demcenko, A.
College/School:College of Science and Engineering > School of Engineering > Biomedical Engineering
Journal Name:Journal of the Acoustical Society of America
Publisher:Acoustical Society of America
ISSN (Online):1520-8524

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