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Implicit and explicit secular equations for Rayleigh waves in two-dimensional anisotropic media. (English) Zbl 1454.74071
Summary: This paper is concerned with the derivation of implicit and explicit secular equations for Rayleigh waves polarized in a plane of symmetry of an anisotropic linear elastic medium. It has been confirmed, in accord with T. C. T. Ting’s paper [in: Surface waves in anisotropic and laminated bodies and defects detection. Proceedings of the NATO advanced research workshop, 2002. Dordrecht: Kluwer Academic Publishers, 95–116 (2004; Zbl 1183.74121)], that the Rayleigh waves propagate with no geometric dispersion. Numerical evaluations of both the implicit and explicit equations give the same values of Rayleigh wave velocities. In the case of orthotropic material (thin composites) it has been found that Rayleigh wave velocity depends significantly (as with bulk waves) on the directions of principal material axes. For the same material model the analytical solutions, based on implicit and explicit secular equations, were compared against the finite element and experimental data that had been published by J. Cerv et al. in [“Influence of principal material directions of thin orthotropic structures on Rayleigh-edge wave velocity”, Compos. Struct. 92, No. 2, 568–577 (2010; doi:10.1016/j.compstruct.2009.09.001)]. It emerged that the theory was in accordance with the experiment.

##### MSC:
 74J15 Surface waves in solid mechanics 74E10 Anisotropy in solid mechanics
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##### References:
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