Attenuation of laser generated SAWs in heated PMMA material

Jia Li; Jing Liu; Liming Dong; Zhonghua Shen; Ling Yuan

doi:10.1117/12.885422

31 December 2010 Attenuation of laser generated SAWs in heated PMMA material

Jia Li, Jing Liu, Liming Dong, Zhonghua Shen, Ling Yuan

Proceedings Volume 7544, Sixth International Symposium on Precision Engineering Measurements and Instrumentation; 75444N (2010) https://doi.org/10.1117/12.885422
Event: Sixth International Symposium on Precision Engineering Measurements and Instrumentation, 2010, Hangzhou, China

Abstract

To investigate the propagation of Surface Acoustic Waves (SAWs) in the heated region of Polymethyl Methacrylate (PMMA), through the thermoelastic mechanism, a finite element model is put forward to simulate laser inducing SAWs in PMMA. Meanwhile, the propagation of SAWs through the heated region of PMMA is investigated experimentally: a Nd:YAG laser is used to excite SAWs and a polyvinylindene fluoride (PVDF) transducer is used to detect SAWs. The simulation and experimental results are in good agreement. SAWs have a significant attenuation when they propagate through the heated region of PMMA.

Citation Download Citation

Jia Li, Jing Liu, Liming Dong, Zhonghua Shen, and Ling Yuan "Attenuation of laser generated SAWs in heated PMMA material", Proc. SPIE 7544, Sixth International Symposium on Precision Engineering Measurements and Instrumentation, 75444N (31 December 2010); https://doi.org/10.1117/12.885422

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