Finite Element Analysis of the Scanning Laser Line Source Technique
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概要
- 論文の詳細を見る
A scanning laser line source (SLLS) technique is simulated numerically using a finite element method in this study, and changes in amplitude and frequency content have been observed for ultrasound signals generated by laser scanning over a large aluminum block containing a small surface notch. The laser generation of surface acoustic waves with the frequency range from 4 to 15 MHz in an elastic material is modeled using a thermoelastic model for finite element analysis, where a transient heat source is employed to represent a pulsed laser source. The experimentally observed SLLS amplitude and spectral signatures are shown to be captured very well by this model. In addition, the possibility of utilizing the SLLS technique to size surface notches that are sub-wavelength in depth is explored.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2006-06-15
著者
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LU Jian
Department of Applied Physics, Nanjing University of Science & Technology
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Lu Jian
School Of Science Nanjing University Of Science And Technology
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Lu Jian
Department Of Applied Physics Nanjing University Of Science And Technology
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WANG JIJUN
Department of Neuropsychiatry, Faculty of Medicine, University of the Ryukyus
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Wang Jijun
Department Of Applied Physics Nanjing University Of Science And Technology
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Guan Jianfei
Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, China
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Shen Zhonghua
Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, China
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Ni Xiaowu
Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, China
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Xu Baiqiang
Faculty of Science, Jiangsu University, Zhenjiang 212013, China
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Ni Xiaowu
Department Of Applied Physics Nanjing University Of Science And Technology
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Xu Baiqiang
Faculty Of Science Jiangsu University
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Guan Jianfei
Department Of Applied Physics Nanjing University Of Science And Technology
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Shen Zhonghua
Department Of Applied Physics Nanjing University Of Science And Technology
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