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Poster De Conférence Année : 2022

Characterisation of the Adhesion Phenomenon by Rayleigh Wave Generated and Detected by Laser Ultrasonics.

Résumé

Non-destructive and non-contact characterization of adhesion by surface acoustic waves (SAW) is an important goal for thin film coating. In this work, SAW are generated by a Nd: YAG laser on an aluminum sample covered by a PVC film of a uniform thickness. The normal displacement is detected at aluminum surface by an interferometer. The influence of the adhesion levels is observed on acoustic signals and a model using finite element method compares theoretical and experimental results. A Matlab code is also developed to plot the dispersion curves according to the transfer-matrix method. It allows to characterize quality of adhesion.
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Dates et versions

hal-04356593 , version 1 (20-12-2023)

Identifiants

  • HAL Id : hal-04356593 , version 1

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Mustapha Baher, Meriem Chrifi Alaoui, Frédéric Jenot, Mohammadi Ouaftouh, Marc Duquennoy. Characterisation of the Adhesion Phenomenon by Rayleigh Wave Generated and Detected by Laser Ultrasonics.. Mardi des Chercheurs, Sep 2022, Mons, Belgium. ⟨hal-04356593⟩
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