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Article dans une revue
Investigation of 3D surface acoustic waves in granular media with 3-color digital holography
Abstract : This paper reports the implementation of digital color holography to investigate elastic waves propagating along a layer of a granular medium. The holographic setup provides simultaneous recording and measurement of the 3D dynamic displacement at the surface. Full-field measurements of the acoustic amplitude and phase at different excitation frequencies are obtained. It is shown that the experimental data can be used to obtain the dispersion curve of the modes propagating in this granular medium layer. The experimental dispersion curve and that obtained from a finite element modeling of the problem are found to be in good agreement. In addition, full-field images of the interaction of an acoustic wave guided in the granular layer with a buried object are also shown. Published by AIP Publishing. [http://dx.
Littérature citée [50 références]
https://hal-univ-lemans.archives-ouvertes.fr/hal-02057081
Contributeur : Guillaume Penelet <>
Soumis le : mardi 5 mars 2019 - 09:47:48
Dernière modification le : vendredi 28 mai 2021 - 15:03:24
Archivage à long terme le : : jeudi 6 juin 2019 - 14:15:37
Contributeur : Guillaume Penelet <>
Soumis le : mardi 5 mars 2019 - 09:47:48
Dernière modification le : vendredi 28 mai 2021 - 15:03:24
Archivage à long terme le : : jeudi 6 juin 2019 - 14:15:37
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leclercq_et_al_JAP_2017.pdf
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