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Proceedings Paper

Attenuation of laser generated SAWs in heated PMMA material
Author(s): Jia Li; Jing Liu; Liming Dong; Zhonghua Shen; Ling Yuan
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Paper 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.

Paper Details

Date Published: 31 December 2010
PDF: 6 pages
Proc. SPIE 7544, Sixth International Symposium on Precision Engineering Measurements and Instrumentation, 75444N (31 December 2010); doi: 10.1117/12.885422
Show Author Affiliations
Jia Li, Nanjing Univ. of Science and Technology (China)
Jing Liu, Nanjing Univ. of Science and Technology (China)
Liming Dong, Nanjing Univ. of Science and Technology (China)
Zhonghua Shen, Nanjing Univ. of Science and Technology (China)
Ling Yuan, Nanjing Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 7544:
Sixth International Symposium on Precision Engineering Measurements and Instrumentation
Jiubin Tan; Xianfang Wen, Editor(s)

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