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2010 Fiscal Year Final Research Report

Quantitative Nonlinear Ultrasonic Spectroscopy for Imperfect Interfaces and Imperfect Bonding by Guided Waves

Research Project

  • PDF
Project/Area Number 20360053
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Materials/Mechanics of materials
Research InstitutionKyoto University

Principal Investigator

BIWA Shiro  Kyoto University, 大学院・工学研究科, 教授 (90273466)

Co-Investigator(Renkei-kenkyūsha) MATSUMOTO Eiji  京都大学, 大学院・エネルギー科学研究科, 教授 (30093313)
Project Period (FY) 2008 – 2010
Keywords非破壊評価 / 超音波 / 非線形特性 / ラム波 / ガイド波
Research Abstract

High-amplitude Lamb waves were excited on plates with contact or adhesive interfaces, and the propagated waveforms were analyzed by the time-frequency analysis to extract the nonlinear spectral components such as higher harmonics. As a result, the harmonic components were found to change their amplitude depending on the contact or adhesive conditions. Therefore, nonlinear Lamb wave characteristics are promising as a tool for evaluating the contact or adhesive conditions of plates. From a theoretical point of view, the flexural wave propagation was examined based on the Mindlin plate theory with nonlinear interface model. Furthermore, the conditions for cumulative growth of Lamb wave harmonics were derived based on the dispersion relation of Lamb waves.

  • Research Products

    (6 results)

All 2011 2010 2009

All Journal Article (3 results) (of which Peer Reviewed: 2 results) Presentation (3 results)

  • [Journal Article] Phase and group velocity matching for cumulative harmonic generation in Lamb waves2011

    • Author(s)
      N.Matsuda, S.Biwa
    • Journal Title

      Journal of Applied Physics Vol.109, Issue 9

      Pages: 094903

    • Peer Reviewed
  • [Journal Article] Modeling of flexural wave propagation in a plate with contacting interfaces2010

    • Author(s)
      S.Biwa, S.Kishiwada, C.Inserra, E.Matsumoto
    • Journal Title

      Journal of Solid Mechanics and Materials Engineering Vol.4, No.8

      Pages: 1186-1197

    • Peer Reviewed
  • [Journal Article] 固体接触界面および損傷固体の非線形超音波伝搬特性2010

    • Author(s)
      琵琶志朗
    • Journal Title

      数理解析研究所講究録1701「非線形波動現象の数理と応用」

      Pages: 51-62

  • [Presentation] ラム波における累積的高調波発生に関する基礎的検討2010

    • Author(s)
      松田直樹, 琵琶志朗
    • Organizer
      日本機械学会2010年度年次大会
    • Place of Presentation
      名古屋(名古屋工業大学)
    • Year and Date
      2010-09-07
  • [Presentation] Harmonic generation in Lamb wave in a plate with contacting interfaces2009

    • Author(s)
      M.Eto, S.Biwa, E.Matsumoto
    • Organizer
      第30回超音波エレクトロニクスの基礎と応用に関するシンポジウム
    • Place of Presentation
      京都(同志社大学)
    • Year and Date
      2009-11-18
  • [Presentation] Nonlinear ultrasonic characterization of Lamb wave in a plate with contacting interfaces2009

    • Author(s)
      S.Kishiwada, S.Biwa, C.Inserra, E.Matsumoto
    • Organizer
      ICROS-SICE International Joint Conference 2009
    • Place of Presentation
      福岡(福岡国際会議場)
    • Year and Date
      2009-08-19

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Published: 2012-01-26   Modified: 2016-04-21  

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