Wave Propagation in Coating and its Laser Ultrasonic Testing
摘 要
建立了一个理论模型来预测激光激发涂层中的超声波传播,并利用傅里叶变换方法对声场的瞬态位移进行理论求解。计算结果显示,所设计模型能很好地预测激光在不同涂层中所激发的位移场,为进一步的试验验证和反问题求解提供理论依据。
Abstract
In this paper, a theoretical model was introduced to predict the propagation of ultrasonic waves excited by laser in a coating. The transient displacement of the acoustic field was solved by Fourier transform. The numerical results could predict the transient displacements for various coatings, and it could provide the theoretical guide for the experiment and inverse problem.
中图分类号 TG115.28
所属栏目 科研成果与学术交流
基金项目 国家自然科学基金资助项目(10872151,10872150)
收稿日期 2010/7/30
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备注宋学行(1986-),男,博士研究生,研究方向为功能梯度材料的激光超声检测与评估。
引用该论文: SONG Xue-Hang,PAN Yong-Dong,ZHONG Zheng. Wave Propagation in Coating and its Laser Ultrasonic Testing[J]. Nondestructive Testing, 2011, 33(4): 17~18
宋学行,潘永东,仲政. 涂层中的声传播和激光超声检测[J]. 无损检测, 2011, 33(4): 17~18
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参考文献
【1】Scruby C B, Drain L E. Laser Ultrasonics: Techniques and Applications[M]. New York: Adam Hilger,1990.
【2】Cheng A, Murray T W, Achenbach J D. Simulation of laser-generated ultrasonic waves in layered plates[J]. J Acoust Soc Am,2001(110):848-855.
【2】Cheng A, Murray T W, Achenbach J D. Simulation of laser-generated ultrasonic waves in layered plates[J]. J Acoust Soc Am,2001(110):848-855.
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