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Article dans une revue

Acoustic analysis of anisotropic poroelastic multilayered systems

Abstract : The proposed method allows for an extended analysis of the wave analysis, internal powers, and acoustic performance of anisotropic poroelastic media within semi-infinite multilayered systems under arbitrary excitation. Based on a plane wave expansion, the solution is derived from a first order partial derivative as proposed by Stroh. This allows for an in-depth analysis of the mechanisms controlling the acoustic behaviour in terms of internal powers and wave properties in the media. In particular, the proposed approach is used to highlight the influence of the phenomena intrinsic to anisotropic poroelastic media, such as compression-shear coupling related to the material alignment, the frequency shift of the fundamental resonance, or the appearance of particular geometrical coincidences in multilayered systems with such materials.
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https://hal-univ-lemans.archives-ouvertes.fr/hal-02458836
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Soumis le : mercredi 29 janvier 2020 - 06:42:46
Dernière modification le : jeudi 21 janvier 2021 - 15:21:47

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Juan Pablo Parra Martinez, Olivier Dazel, Peter Göransson, Jacques Cuenca. Acoustic analysis of anisotropic poroelastic multilayered systems. Journal of Applied Physics, American Institute of Physics, 2016, 119 (8), pp.084907. ⟨10.1063/1.4942443⟩. ⟨hal-02458836⟩

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