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1992 Fiscal Year Final Research Report Summary

A Study on Orecise Quantification of Ultrasonic Inspection

Research Project

Project/Area Number 03452200
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field 土木構造
Research InstitutionTokyo Institute of Technology

Principal Investigator

MIKI Chitoshi  Tokyo Institute of Technology, 工学部, 教授 (20016645)

Co-Investigator(Kenkyū-buntansha) TATEISHI Kazuo  Research Assoc., Tokyo Institute of Technology, 工学部, 助手 (80227107)
KITAHARA Michihiro  Associate Prof., Tokai University, 海洋学部, 助教授 (60135522)
Project Period (FY) 1991 – 1992
KeywordsUltrasonic Inspection / Flaw Shape / Picturise / B Scope / Ultrasonic Holography / Numerical Simulation
Research Abstract

1. Computational program to simulate the propagation of ultrasonic wave was developed. Using this simulation system, the characters of ultrasonic waveofrm was investigated.
2. Ultrasonic Pulse-Echo inspection was carried out to investigate the character of scattering waveform from flaws. Scattering wave was divided into longitudinal and transverse components based on the difference of refraction angle.
3. Computer graphics system was developed to picturise the shape of flaws from the echo of ultrasonic wave obtained on the surface.
The relationship between phase shift and shape of flaw was shown.
5. Analysis was carried out in case that a flaw with non-linear boundary existed in a elastic body. The activity of non-linear boundary was analyzed numerically and its characters was shown.
6. As a computational technique to analyze the propagation of elastic wave, hybrid method of finite element method and boundary element method was improved. It was shown that this analysis method was effective to reduce the freedom of analysis model.

  • Research Products

    (14 results)

All Other

All Publications (14 results)

  • [Publications] 三木千寿,舘石和雄,高橋政則: "超音波の数値シミュレーションと非破壊検査への応用" 土木工学における非破壊評価シンポジウム講演論文集. 43-50 (1991)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 三木千寿,高橋政則,梅田晶一,加藤昌彦,舘石和雄: "散乱超音波法による欠陥形状識別の試み" 土木工学における非破壊評価シンポジウム講演論文集. 81-86 (1991)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 北原道弘,瀬戸恭英,中川克也: "散乱波動場の位相とその形状決定問題への応応" 構造工学論文集. Vol.38A. 397-404 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 三木千寿,高橋政則,舘石和雄,劉銘崇: "超音波探傷の高精度定量化に関する研究(その1、超音波の数値シミュレーションとモード分離画像化について)" 東工大土木工学科研究報告書. No.43. 75-100 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] C.MIKI,K.IKEDA K.TATEISHI and M.TAKAHASHI: "Numerical Simulation of Ultrasonic Pulse-Echo Inspection Structural Elg." Structural Eng/Earthguake Eng.Vol.9 No.4. 237-246 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.HIROSE and M.KITAHARA: "Ultrasonic Scattering Analysis to Characferize Nonlinear Behavior of Material Interfaces" Nondestructive Testing Evaluation. Vol.8-9. 405-416 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] C.Miki, K.Tateishi and M.Takahashi: "Numerical Simulation of Ultrasonic Pulse-Echo Inspection" Proc.of the Symposium of Non-Destructive Evaluation in Civil Eng.43-50 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] C.Miki, M.Takahashi, S.Umeda, M.Kato, K.Tateishi: "Application of the method to distinguish a flaw's shape by scattering ultrasonic wave" Proc.of the Symposium on Non-Destructive Evaluation in Civil Eng.81-86 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.Kitahara, Y.Seto and K.Nakagawa: "Phase shift in scattering far-fields and a shape reconstruction" J.of Structural Eng.Vol.38A. 397-404 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] C.Miki, M.Takahashi, K.Tateishi and M.C.Liou: "A Study on Precise Quantification of Ultrasonic Inspection" Technical Report, No.46, Dept.Civil Eng. Tokyo Inst.of Tech.75-100 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] C.Miki, K.Ikeda, K.Tateishi and M.Takahashi: "Numerical Simulation of Ultrasonic Pulse-Echo Inspection" Structural Eng./Earthquake Eng.Vol.9, No.4. 237-246 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Hirose and M.Kitahara: "Ultrasonic Scattering Analysis to Characterise Non-linear Behavior of Material Interface" Non-destructive Testing Evaluation. Vol.8-9. (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.Kitahara and K.Nakagawa: "Boundary Element-Node Condensed Finite Element Method for Three Dimensional Elastic Wave Propagation Problems" Proc.of the IABEM Symposium. (1991)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.Kitahara, S.Hirose and J.D.Achenbach: "Transient Elastodynamic Analysis for Three-Dimensional Configurations" Advanced Dynamic Analysis by Boundary Element Methods, Chp.7. (1991)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1995-03-27  

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