基于Lamb波时间反转法的复合材料损伤检测

doi:10.3969/j.issn.1004-132X.2021.01.004

摘要/Abstract

摘要： 为检测复合材料损伤，利用Lamb波时间反转法的聚焦特性，在复合材料布置压电传感器激励和接收Lamb波。时间反转法无需对比基准信号就能快速准确地实现损伤的判别，提出的改进损伤成像方法可实现损伤情况可视化。实验研究验证了检测方法的有效性和改进损伤成像方法的优越性。

关键词: Lamb波, 时间反转法, 损伤成像, 复合材料, 健康监测

Abstract: In order to detect damage of composites, focusing characteristics of time reversal Lamb waves method was adapted, and PZT sensors were mounted on a composite plate to excite and receive Lamb waves. The time reversal method may realize damage detection quickly and accurately without comparing reference signals. An improved damage imaging method was proposed to realize damage visualization. Experimental results demonstrated the effectivenesses of the detection method and superiority of the improved method.

Key words: Lamb wave, time reversal method, damage image, composite material, structural health monitoring

中图分类号:

TB332

夏小松;郑艳萍. 基于Lamb波时间反转法的复合材料损伤检测[J]. 中国机械工程, DOI: 10.3969/j.issn.1004-132X.2021.01.004.

XIA Xiaosong;ZHENG Yanping. Damage Detection in Composite Based on Time Reversal Lamb Waves Method[J]. China Mechanical Engineering, DOI: 10.3969/j.issn.1004-132X.2021.01.004.

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