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Article Dans Une Revue Journal of Sound and Vibration Année : 2004

Verification of Kramers-Kronig relationship in porous materials having a rigid frame

Résumé

The propagation of acoustic waves in porous materials having a rigid frame is well described by several models. A doubt about the causality of these models has been raised recently in the literature. A verification of the causality of these models is studied in this paper using the Kramers–Kronig dispersion relations adapted to the frequency power law dependence of the attenuation. It is shown that these models are causal in the high- and low-frequency range. A time domain wave equation and time-causal theory have been treated.
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hal-00088278 , version 1 (20-11-2019)

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Zine El Abiddine Fellah, Sylvain Berger, Walter Lauriks, Claude Depollier. Verification of Kramers-Kronig relationship in porous materials having a rigid frame. Journal of Sound and Vibration, 2004, 270, pp.865-885. ⟨10.1016/S0022-460X(03)00636-9⟩. ⟨hal-00088278⟩
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