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Energy Transfer of electron-induced thermal acoustic wave and its imaging

Research Project

Project/Area Number 16K14116
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Materials/Mechanics of materials
Research InstitutionOsaka University

Principal Investigator

SHIBUTANI YOJI  大阪大学, 工学研究科, 教授 (70206150)

Co-Investigator(Renkei-kenkyūsha) KOYAMA Atsuhiro  長崎大学, 大学院工学研究科, 准教授 (40324800)
Research Collaborator ZHANG Beishun  
Project Period (FY) 2016-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords電子熱音響 / 非破壊検査 / マルチフィジクス / イメージング / 仮想EAI / 熱電子音響
Outline of Final Research Achievements

The nondestructive observation using thermoelastic and piezoelectric couplings by the chopped electron beam has been proposed as a scanning electron acoustic microscope (SEAM). Our own built SEAM has successfully provided some nondestructive observations of microdefects as the electron acoustic images (EAIs). In order to investigate the thermal and acoustic wave properties, a computational model was proposed, being multiphysically coupled among non-Fourier heat conduction, dynamic elasticity and piezoelectricity. The piezoelectromotive output to the cyclic surface temperature change was estimated and Fast Fourier Transformation of that wave gives us the clear phase difference disturbed by the circular vacancy in the model. In conclusion, (1)the external uniform stress, temperature and electromagnetic fields can enhance the phase difference at the boundary of defect. (2)The sample with an artificial vacancy on the back side can’t be detected as the actual EAI.

Report

(3 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • Research Products

    (6 results)

All 2017 Other

All Presentation (3 results) (of which Int'l Joint Research: 1 results) Book (1 results) Remarks (2 results)

  • [Presentation] 欠陥を持つ2 次元熱電気弾性体のマルチフィジクス波動解析2017

    • Author(s)
      張 培駿,渋谷 陽二,垂水 竜一
    • Organizer
      日本機械学会関西支部第92期定時総会講演会
    • Place of Presentation
      大阪大学吹田キャンパス
    • Year and Date
      2017-03-13
    • Related Report
      2016 Research-status Report
  • [Presentation] Multiscale Modeling; Atomistic and Continuous Pictures in Mechanics2017

    • Author(s)
      Y. Shibutani
    • Organizer
      The 9th Asia Computational Materials Design Workshop (9th CMD Workshop)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 界面を持つ熱電気弾性場の波動に伴うエネルギー輸送解析2017

    • Author(s)
      櫻井孝介,渋谷陽二,垂水竜一,張培駿
    • Organizer
      日本機械学会関西学生会平成27年度学生員卒業研究発表講演会
    • Place of Presentation
      大阪大学吹田キャンパス
    • Related Report
      2016 Research-status Report
  • [Book] 材料力学2017

    • Author(s)
      渋谷陽二,中谷彰宏
    • Total Pages
      335
    • Publisher
      コロナ社
    • ISBN
      9784339045314
    • Related Report
      2017 Annual Research Report
  • [Remarks] 大阪大学大学院工学研究科機械工学専攻 渋谷研究室

    • URL

      http://www-comec.mech.eng.osaka-u.ac.jp/

    • Related Report
      2017 Annual Research Report
  • [Remarks] 大阪大学大学院工学研究科機械工学専攻 渋谷・垂水.奥村研究室

    • URL

      http://www-comec.mech.eng.osaka-u.ac.jp/index.html

    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2019-03-29  

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