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SCATTERING OF ULTRASONIC WAVE BY CRACKS IN A PLATE

被引：28
作者：
LIU, SW
DATTA, SK
机构：
[1] UNIV COLORADO,CIRES,DEPT MECH ENGN,BOULDER,CO 80309
[2] UNIV COLORADO,CTR SPACE CONSTRUCT,BOULDER,CO 80309
来源：
JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME | 1993年 / 60卷 / 02期
关键词：
D O I：
10.1115/1.2900800
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
A hybrid numerical method combining finite elements and the boundary integral representation is used to investigate the transient scattering of ultrasonic waves by a crack in a plate. The incident wave models the guided waves generated by a steel ball impact on the plate. Two surface-breaking cracks and one subsurface crack are studied here. The results show that the location and depth of cracks have measurable effects on the surface responses in time and frequency domains. Also, the scattered fields have distinct differences in the three cases.
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页码：352 / 357
页数：6
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