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Article Dans Une Revue Applied Physics Letters Année : 1992

Time reversal and reciprocity in sound propagation through elastic and porous layers

Résumé

Transmission of plane sound waves through elastic or porous layers involves longitudinal and transverse waves and can be described by equivalent multiport circuits. Different ports on each face of the layer are related to the normal and the tangential strains and velocities. The form of the impedance matrix of the circuits indicates that the coupling between normal and tangential conjugate variables is antireciprocal. This is due to the fact that the angle of incidence changes sign under time reversal.
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hal-02518324 , version 1 (28-11-2023)

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Jean Allard, Bruno Brouard, Denis Lafarge, Walter Lauriks. Time reversal and reciprocity in sound propagation through elastic and porous layers. Applied Physics Letters, 1992, 61 (10), pp.1166-1167. ⟨10.1063/1.107634⟩. ⟨hal-02518324⟩
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