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2008 Fiscal Year Final Research Report

Studies on Nondestructive Evaluation System for Material Degradation Using Electromagnetic Inverse Analysis

Research Project

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Project/Area Number 17560373
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Measurement engineering
Research InstitutionKobe University

Principal Investigator

KOJIMA Fumio  Kobe University, 大学院工学研究科, 教授 (70234763)

Co-Investigator(Kenkyū-buntansha) KOBAYASHI Futoshi  神戸大学, 大学院・工学研究科, 准教授 (50314042)
TAKAHASHI Seiki  岩手大学, 工学部, 教授 (50003851)
KIKUCHI Hiroaki  岩手大学, 工学部, 准教授 (30344617)
Project Period (FY) 2005 – 2008
Keywords計測工学 / 解析・評価 / 磁性 / 格子欠陥 / 原子力エネルギー / 非破壊検査 / 有限要素法 / 信号解析
Research Abstract

材料システムの外面的な変化が進む以前の微細構造の変化から材料の余寿命を予測する非破壊評価技術を確立する。劣化のメカニズムに関する理論的・実験的根拠にもとづき、構造物で使用される金属材料の経年劣化に伴う疲労の蓄積を磁化過程における磁束密度の経時変化から捕捉し、モデルにもとづく逆問題解析技術を援用して、材料の局所的な劣化進展評価を可能とする、高精度非破壊診断システムの開発をめざす。

  • Research Products

    (20 results)

All 2009 2008 2007 2006

All Journal Article (11 results) (of which Peer Reviewed: 11 results) Presentation (8 results) Book (1 results)

  • [Journal Article] Crack Profiles Identification using Reduced Order Computational Method Based on ECT Signals2009

    • Author(s)
      F. Kojima and T. D. Nguyen
    • Journal Title

      Studies in Applied Electromagnetics and Mechanics Vol. 30(印刷中)

    • Peer Reviewed
  • [Journal Article] hree Dimensional Shape Recovery of Fatigue Crack using Eddy Current Testing Signals2009

    • Author(s)
      K. Ohshima and F. Kojima
    • Journal Title

      Studies in Applied Electromagnetics and Mechanics Vol. 30(印刷中)

    • Peer Reviewed
  • [Journal Article] Estimation Technique for Characterizing Inhomogeneous Conducting Zone related to Eddy Current Testing2008

    • Author(s)
      A. Ausri and F. Kojima
    • Journal Title

      Transaction of JASCOME Vol.7

      Pages: 213-218

    • Peer Reviewed
  • [Journal Article] Investigation of Neutron Radiation Effects on Fe Model Alloys by Minor Hysteresis Loop Analysis2007

    • Author(s)
      S. Kobayashi, H. Kikuchi, S.Takahashi, K. Ara, and Y. Kamata
    • Journal Title

      Studies in Applied Electromagnetics and Mechanics Vol.28

      Pages: 217-224

    • Peer Reviewed
  • [Journal Article] NDE Method using Minor Hysteresis Loops in Ferromagnetic Materials2007

    • Author(s)
      S. Takahashi, S. Kobayashi, Y. Kamada, H. Kikuchi, and K. Ara
    • Journal Title

      Studies in Applied Electromagnetics and Mechanics Vol.28

      Pages: 209-216

    • Peer Reviewed
  • [Journal Article] Computational Method for Estimating Deep-lying Profiles of Stress Corrosion Cracking arising in Eddy Current Testing2007

    • Author(s)
      A. Ausri and F. Kojima
    • Journal Title

      Transaction of JASCOME Vol.7

      Pages: 85-90

    • Peer Reviewed
  • [Journal Article] Identification of Stress Corrosion Cracking of SUS Samples arising in Electromagnetic Nondestructive Testing2007

    • Author(s)
      F. Kojima and A. Ausri
    • Journal Title

      Journal of Inverse and Ill-posed Problems Vol.15

      Pages: 799-812

    • Peer Reviewed
  • [Journal Article] Nondestructive Evaluation for Material Degradation of Steel Sample using Minor Hysteresis Loop Observation2007

    • Author(s)
      F. Kojima and R. Nishiyama
    • Journal Title

      Studies in Applied Electromagnetics and Mechanics Vol.28

      Pages: 243-250

    • Peer Reviewed
  • [Journal Article] Quantitative Evaluation of Material Degradation Parameters using Nonlinear Magnetic Inverse Problems2007

    • Author(s)
      F. Kojima and T. Fujioka
    • Journal Title

      International Journal of Applied Electromagnetics and Mechanics Vol. 25

      Pages: 157-163

    • Peer Reviewed
  • [Journal Article] L-Curve法と適応正則化併用法による磁気画像の形状識別同定法2006

    • Author(s)
      小島史男, 依藤大輔, 伊東一文
    • Journal Title

      計測自動制御学会論文集 Vol.42-7

      Pages: 705-711

    • Peer Reviewed
  • [Journal Article] Identification of Multiple Cracks for SQUID-based NDE Systems using Virus-Evolutionary Computation2006

    • Author(s)
      F. Kojima, H. Yabuki, and N. Kubota
    • Journal Title

      Studies in Applied Electromagnetics and Mechanics Vol.26

      Pages: 128-135

    • Peer Reviewed
  • [Presentation] Condition Monitoring for Static Apparatus of NPPs: Role of Modeling and Simulation2009

    • Author(s)
      F. Kojima
    • Organizer
      The Asian Workshop on Maintenance Technology for Nuclear Power Plant
    • Place of Presentation
      Sendai
    • Year and Date
      2009-01-20
  • [Presentation] 磁気ヨークを用いた非破壊評価におけるインピーダンス解析2008

    • Author(s)
      菊池弘昭・荒克之・鎌田康寛・小林悟
    • Organizer
      第17回「電磁現象および電磁力に関するコンフェレンス」
    • Place of Presentation
      日立
    • Year and Date
      2008-11-20
  • [Presentation] Characterization of Deep-lying Fatigue Cracking Arising in Eddy Current Testing2008

    • Author(s)
      K. Ohshima and F. Kojima
    • Organizer
      SICE Annual Conference 2008
    • Place of Presentation
      Chofu
    • Year and Date
      2008-08-21
  • [Presentation] Crack Sizing Methodologies using Trust Region Method Arising in Eddy Current Testing2008

    • Author(s)
      F. Kojima and Y. Soen
    • Organizer
      SICE Annual Conference 2008
    • Place of Presentation
      Chofu
    • Year and Date
      2008-08-20
  • [Presentation] 計測とシミュレーション技術を統合化したプラント状態監視技術の高度化について2008

    • Author(s)
      小島史男
    • Organizer
      日本鉄鋼協会第139回制御技術部会大会・特別講演
    • Place of Presentation
      鹿島
    • Year and Date
      2008-06-13
  • [Presentation] 逆問題解析の原子力プラント非破壊検査技術への応用2007

    • Author(s)
      小島史男
    • Organizer
      日本鉄鋼協会計測・制御・システム工学部会シンポジウム「安全、設備保全の考え方の新潮流」・招待講演
    • Place of Presentation
      倉敷
    • Year and Date
      2007-11-09
  • [Presentation] ECT Database and Greedy-Search Inverse Analysis for Crack Shape Recovery Arising in Eddy Current Testing2006

    • Author(s)
      F. Kojima and T. D. Nguyen
    • Organizer
      Proceedings of SICE-ICASE Joint International Conference 2006
    • Place of Presentation
      Busan
    • Year and Date
      2006-10-20
  • [Presentation] 磁気計測データの逆解析による欠陥部定量評価の研究2006

    • Author(s)
      小島史男
    • Organizer
      日本鉄鋼協会第151春期講演大会
    • Place of Presentation
      東京
    • Year and Date
      2006-03-22
  • [Book] pplied Electromagnetics and Mechanics2006

    • Author(s)
      F. Kojima and D.V. Phong
    • Total Pages
      559
    • Publisher
      Science and Technology Publishing House

URL: 

Published: 2010-06-10   Modified: 2016-04-21  

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