Measurement of the effects of rough surfaces on Lamb waves propagation
Résumé
This work deals with the sensitivity to the plate roughness of Lamb waves. An experimental study is performed involving an air-coupling transducer system. Signal processing allows us to extract the Lamb waves characteristics: phase velocity and attenuation. Plate surface topographies are obtained by means of an optical surface profiler. The acoustic characteristics and the surface topographies are finally linked.
| Origine | Fichiers produits par l'(les) auteur(s) |
|---|