Finite Element Analysis of the Scanning Laser Line Source Technique

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著者

    • Lu Jian [他] Lu Jian
    • Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, China
    • Ni Xiaowu
    • Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, China
    • Wang Jijun
    • Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, China
    • Xu Baiqiang
    • Faculty of Science, Jiangsu University, Zhenjiang 212013, China

抄録

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.

収録刊行物

  • Japanese journal of applied physics. Pt. 1, Regular papers & short notes  

    Japanese journal of applied physics. Pt. 1, Regular papers & short notes 45(6A), 5046-5050, 2006-06-15 

    Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physics

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各種コード

  • NII論文ID(NAID)
    10018148597
  • NII書誌ID(NCID)
    AA10457675
  • 本文言語コード
    EN
  • 資料種別
    ART
  • 雑誌種別
    大学紀要
  • ISSN
    0021-4922
  • NDL 記事登録ID
    7941006
  • NDL 雑誌分類
    ZM35(科学技術--物理学)
  • NDL 請求記号
    Z53-A375
  • データ提供元
    CJP書誌  NDL  JSAP 
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