Effects of the interface roughness in metal-adhesive-metal structure on the propagation of shear horizontal waves - Normandie Université Access content directly
Journal Articles Journal of the Acoustical Society of America Year : 2017

Effects of the interface roughness in metal-adhesive-metal structure on the propagation of shear horizontal waves

Abstract

The influence of the interface roughness in a three-layer metal-adhesive-metal structure on the propagation of shear horizontal waves and more particularly on the transmission coefficient versus the frequency is studied in the particular case of a periodic grating of triangular grooves. For given phonon frequencies, the interaction of an incident shear horizontal mode with the periodical grating gives rise to a retro-converted mode. A numerical finite element simulation permits us to predict the existence of the phonon mode in the three-layer structure and to obtain the evolution of the transmission coefficient around the phonon frequency. An experimental study, based on a generation of waves by a piezocomposite contact transducer and a reception by a laser vibrometer, then confirms these predictions. Finally, a parametric numerical study is performed: the influence of the depth of the roughness and of the number of spatial periods of the grooves on the transmission coefficient is studied.
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Dates and versions

hal-01919430 , version 1 (07-12-2023)

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Mounsif Ech Cherif El Kettani, Damien Leduc, Catherine Potel, Michel Bruneau, Ludovic Foze, et al.. Effects of the interface roughness in metal-adhesive-metal structure on the propagation of shear horizontal waves. Journal of the Acoustical Society of America, 2017, 141 (6), pp.4591 - 4599. ⟨10.1121/1.4985441⟩. ⟨hal-01919430⟩
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