Approximation of the Rayleigh wave speed
نویسنده
چکیده
This brief note describes an asymptotic technique for accurate computation of the Rayleigh wave speed both in compressible isotropic and incompressible orthotropic half-spaces. As opposed to recent publications by Malischewsky and Ogden & Vinh, the Cardan’s formula for solving cubic equations is not used. A variant of Graeffe’s method for finding the moduli of zeros of polynomials is formulated instead. The resulting approximation rapidly converges to the physically relevant solution.
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