Fatigue crack detection in metallic structures with Lamb waves and 3D laser vibrometry

被引：218
|
作者：
Staszewski, W. J.
Lee, B. C.
Traynor, R.
机构：
[1] Univ Sheffield, Dept Mech Engn, Dynam Res Grp, Sheffield S1 3JD, S Yorkshire, England
[2] Lambda Photometr Ltd, Harpenden AL5 5BZ, Herts, England
来源：
MEASUREMENT SCIENCE AND TECHNOLOGY | 2007年 / 18卷 / 03期
关键词：
fatigue crack; crack detection; non-destructive testing; Lamb waves; 3D laser vibrometer;
D O I：
10.1088/0957-0233/18/3/024
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The paper presents the application of ultrasonic guided waves for fatigue crack detection in metallic structures. The study involves a simple fatigue test performed to introduce a crack into an aluminium plate. Lamb waves generated by a low-profile, surface-bonded piezoceramic transducer are sensed using a tri-axis, multi-position scanning laser vibrometer. The results demonstrate the potential of laser vibrometry for simple, rapid and robust detection of fatigue cracks in metallic structures. The method could be used in quality inspection and in-service maintenance of metallic structures in aerospace, civil and mechanical engineering industries.
引用
收藏
页码：727 / 739
页数：13
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