Measurement of the effects of rough surfaces on Lamb waves propagation

被引:13
|
作者
Leduc, D [1 ]
Morvan, B [1 ]
Pareige, P [1 ]
Izbicki, JL [1 ]
机构
[1] Univ Havre, Acoust Ultrasonore & Elect Lab, CNRS, UMR 6068, F-76610 Le Havre, France
关键词
Lamb waves; rough surface; surface topography;
D O I
10.1016/j.ndteint.2003.09.007
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
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. (C) 2003 Elsevier Ltd. All rights reserved.
引用
收藏
页码:207 / 211
页数:5
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