Journal Articles Ultrasonics Year : 2019

On the validity of several previously published perturbation formulas for the acoustoelastic effect on Rayleigh waves

Abstract

This article revisits the evaluation by a perturbation theory of the modification of the Rayleigh wave velocity under a static loading varying with depth. Two derivations, that have been exposed in the past and presented as comparable, are questioned. A new derivation of the perturbation formula is given by adapting Auld's approach. Validation with exact calculations is provided. The examples cover depth-varying static stress as well as depth-varying third order elastic properties.
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Dates and versions

hal-03181608 , version 1 (25-03-2021)

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Pierric Mora, M. Spies. On the validity of several previously published perturbation formulas for the acoustoelastic effect on Rayleigh waves. Ultrasonics, 2019, 91, pp. 114-120. ⟨10.1016/j.ultras.2018.07.020⟩. ⟨hal-03181608⟩
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