Review of the current application of nonlinear acoustics and time reversal acoustics in material defects identification

被引：0
作者：
Li, Dayong [1 ]
Gao, Guili [1 ]
Dong, Jingwei [1 ]
机构：
[1] School of Material Science and Engineering, Harbin University of Science and Technology
来源：
Jixie Gongcheng Xuebao/Journal of Mechanical Engineering | 2009年 / 45卷 / 01期
关键词：
Defect identification; Non-linear acoustics; Nondestructive test; Time reversal;
D O I：
10.3901/JME.2009.01.001
中图分类号：
学科分类号：
摘要：
The basic principles of nonlinear acoustics and time reversal acoustics are briefly introduced and their applications in material NDT are reviewed and discussed. It is pointed out that nonlinear acoustic wave is sensitive to defects in solid media and sonic energy in solid media can be focused on any points by using time reversal acoustics. Identifying and locating defects precisely and accurately based on the defect sensitivity of nonlinear acoustic wave and self-focusing characteristics of time reversal acoustic wave has become a new trend in the research field of material NDT and will have a bright application prospect in industrial health monitoring, medical diagnosis, underwater communication and seismic analysis.
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页码：1 / 8
页数：7
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