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

• Project/Area Number: 17560373
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Measurement engineering
• Research Institution: Kobe 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
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥3,680,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥180,000); Fiscal Year 2008: ¥130,000 (Direct Cost: ¥100,000、Indirect Cost: ¥30,000); Fiscal Year 2007: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2006: ¥900,000 (Direct Cost: ¥900,000); Fiscal Year 2005: ¥2,000,000 (Direct Cost: ¥2,000,000)
• 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 / 逆問題解析

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

• [Journal Article] Crack Profiles Identification using Reduced Order Computational Method Based on ECT Signals (2009)
  • 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 Signals (2009)
  • Author(s): K. Ohshima and F. Kojima
  • Journal Title: Studies in Applied Electromagnetics and Mechanics Vol. 30(印刷中)
  • Peer Reviewed
• [Journal Article] Crack Profiles Identification using Reduced Order Computational Method Based on ECT Signals (2009)
  • Author(s): Fumio KOJIMA, NGUYEN Thanh Duong
  • Journal Title: Studies in Applied Electromagnetics and Mechanics 30(印刷中)
  • Peer Reviewed
• [Journal Article] Three Dimensional Shape Recovery of Fatigue Crack using Eddy Current Testing Signals (2009)
  • Author(s): Kcnichi OSHIMA, Fumio KOJIMA
  • Journal Title: Studies in Applied Electromagnetics and Mechanics 30(印刷中)
  • Peer Reviewed
• [Journal Article] Quanlitalivc Evaluation of Corrosion Shape on Back Surface of SUS Samples by EMAT (2009)
  • Author(s): Daigo KOSAKA, Fumio KOJIMA
  • Journal Title: Studies in Applied Electromagnclics and Mechanics 30(印刷中)
  • Peer Reviewed
• [Journal Article] Estimation Technique for Characterizing Inhomogeneous Conducting Zone related to Eddy Current Testing (2008)
  • Author(s): A. Ausri and F. Kojima
  • Journal Title: Transaction of JASCOME Vol.7 Pages: 213-218
  • NAID: 40022363950
  • Peer Reviewed
• [Journal Article] その場計測による回転機軸受けモニタリング (2008)
  • Author(s): 宇佐美照夫, 小島史男
  • Journal Title: 保全学 第7巻・第2号 Pages: 37-44
  • NAID: 40016171378
  • Peer Reviewed
• [Journal Article] Estimation technique for characterizing inhomogeneous conducting zone related to eddy current testing (2008)
  • Author(s): A. Ausri and F. Kojima
  • Journal Title: Transaction of JASCOME 7 Pages: 213-218
  • NAID: 40022363950
  • Peer Reviewed
• [Journal Article] Investigation of Neutron Radiation Effects on Fe Model Alloys by Minor Hysteresis Loop Analysis (2007)
  • 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 Materials (2007)
  • 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 Testing (2007)
  • Author(s): A. Ausri and F. Kojima
  • Journal Title: Transaction of JASCOME Vol.7 Pages: 85-90
  • NAID: 40022364176
  • Peer Reviewed
• [Journal Article] Identification of Stress Corrosion Cracking of SUS Samples arising in Electromagnetic Nondestructive Testing (2007)
  • 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 Observation (2007)
  • 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 Problems (2007)
  • 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] Quantitative evaluation of material degradation parameters using nonlinear magnetic inverse problems (2007)
  • Author(s): F. Kojima and T. Fujioka
  • Journal Title: International Journal of Applied Electromagnetics and Mechanics 25 Pages: 157-163
  • Peer Reviewed
• [Journal Article] Nondestructive evaluation for material degradation of steel sample using minor hysteresis loop observations (2007)
  • Author(s): F. Kojima and R. Nishiyama
  • Journal Title: Studies in Applied Electromagnetics and Mechanics 28 Pages: 243-250
  • Peer Reviewed
• [Journal Article] Identification of stress corrosion cracking of SUS samples arising in electromagnetic nondestructive testing (2007)
  • Author(s): F. Kojima and A. Ausri
  • Journal Title: Journal of Inverse and Ill-posed Problems 15 Pages: 799-812
  • Peer Reviewed
• [Journal Article] Computational method for estimating deep-lying profiles of stress corrosion cracking arising in eddy current testing (2007)
  • Author(s): A. Ausri and F. Kojima
  • Journal Title: 計算数理工学論文集 7 Pages: 85-90
  • NAID: 40022364176
  • Peer Reviewed
• [Journal Article] NDE method using minor hysteresis loops in ferromagnetic materials (2007)
  • Author(s): S. Takahashi, S. Kobayashi, Y. Kamada, H. Kikuchi, and K. Ara
  • Journal Title: Studies in Applied Electromagnetics and Mochanics 28 Pages: 209-216
  • Peer Reviewed
• [Journal Article] Investigation of neutron radiation effects on Fe model alloys by minor hysteresis loop analysis (2007)
  • Author(s): S. Kobayashi, H. Kikuchi, S. Takahashi, K. Ara, and Y. Kamata
  • Journal Title: Studies in Applied Electromagnetics and Mechanics 28 Pages: 217-224
  • Peer Reviewed
• [Journal Article] Quantitative evaluation of material degradation parameters using nonlinear magnetic inverse problems (2007)
  • Author(s): F.Kojima, T.Fujioka
  • Journal Title: International Journal of Applied Electromagnetics and Mechanics (印刷中)
• [Journal Article] Nondestructive evaluation for material degradation of steel sample using minor hysteresis loop observations (2007)
  • Author(s): F.Kojima, R.Nishiyama
  • Journal Title: Studies in Applied Electromagnetics and Mechanics 27(印刷中)
• [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
  • NAID: 10020531236
  • Peer Reviewed
• [Journal Article] Identification of Multiple Cracks for SQUID-based NDE Systems using Virus-Evolutionary Computation (2006)
  • Author(s): F. Kojima, H. Yabuki, and N. Kubota
  • Journal Title: Studies in Applied Electromagnetics and Mechanics Vol.26 Pages: 128-135
  • Peer Reviewed
• [Journal Article] Identification of Multiple Cracks for SQUID-based NDE Systems using Virus-Evolutionary Computation (2006)
  • Author(s): F.Kojima, H.Yabuki, N.Kubota
  • Journal Title: Studies in Applied Electromagnetics and Mechanics 26 Pages: 128-135
• [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 42・7 Pages: 705-711
  • NAID: 10020531236
• [Journal Article] Database for ECT Problems Solving and Its Application to Quantitative Nondestructive Evaluation (2006)
  • Author(s): F.Kojima
  • Journal Title: Proceedings of Asian Symposium on Applied Electromagnetics and Mechanics Pages: 372-377
• [Journal Article] ECT Database and Greedy-Search Inverse Analysis for Crack Shape Recovery Arising in Eddy Current Testing (2006)
  • Author(s): F.Kojima, N.T.Duong
  • Journal Title: Proceedings of SICE-ICASE Joint International Conference 2006 (CD-ROM)
• [Journal Article] Analysis of minor hysteresis loops and dislocations in Fe (2006)
  • Author(s): S.Takahashi
  • Journal Title: Physica B Vol.372 Pages: 190-193
• [Journal Article] 電磁非破壊検査に関する進化計算を用いた自然き裂モデルによる定量評価について (2005)
  • Author(s): 小島 史男
  • Journal Title: 計算数理工学論文集 第5巻 Pages: 89-94
• [Journal Article] Development of hybrid nondestructive evaluation system using electromagnetic inverse analysis with measurements (2005)
  • Author(s): F.Kojima
  • Journal Title: Proc.of International Conference on Instrumentation, Control and Information Technology Okayama CD-ROM version(CD-ROM)
• [Journal Article] Quantitative evaluation of material degradation parameters using inverse nonlinear magnetic problems (2005)
  • Author(s): F.Kojima
  • Journal Title: Proc.of International Symposium on Interdisciplinary Electromagnetic, Mechanic & Biomedical Problems, September, 2005 Bad Gastein, Austria Pages: 156-157
• [Journal Article] Database for ECT problems solving and its application to quantitative nondestructive evaluation (2005)
  • Author(s): F.Kojima
  • Journal Title: Proc.of the 5th Asian Symposium on Applied Electromagnetics and Mechanics (ASAEM 2005) (CD-ROM)
• [Journal Article] Crack detection by mobile robot with ECT sensor (2005)
  • Author(s): F.Kobayashi
  • Journal Title: Proc.of the 3rd International Symposium on Autonomous Minirobots for Research and Edutainment (AMiRE 2005) Pages: 299-304
• [Journal Article] Nondestructive evaluation method by minor hysteresis loops (2005)
  • Author(s): S.Takahashi
  • Journal Title: Studies in Applied Electromagnetics and Mechanics Vol.25 Pages: 127-134
• [Journal Article] Relationship between minor hysteresis loops and copper precipitation in Fe-Cu alloys (2005)
  • Author(s): S.Takahashi
  • Journal Title: Proc.of International Symposium on Interdisciplinary Electromagnetic, Mechanic & Biomedical Problems, September, 2005 Bad Gastein, Austria Pages: 36-37
• [Journal Article] Nondestructive Methods By Minor Hysteresis Loop In Low Carbon Steel (2005)
  • Author(s): S.Takahashi
  • Journal Title: JSAEM Studies in Applied Electromagnetic and Mechanics Vol.15 Pages: 27-34
• [Journal Article] NDE for magnetic material by minor loop method using magnetic yoke probe (2005)
  • Author(s): H.Kikuchi
  • Journal Title: Studies in Applied Electromagnetics and Mechanics Vol.25 Pages: 119-125
• [Journal Article] The relation between AC permeability and dislocation density and grain size in pure iron (2005)
  • Author(s): H.Kikuchi
  • Journal Title: Proc.of International Symposium on Interdisciplinary Electromagnetic, Mechanic & Biomedical Problems, September, 2005 Bad Gastein, Austria Pages: 288-289
• [Journal Article] 材料劣化の非破壊評価のための磁気ヨークプローブ (2005)
  • Author(s): 菊池 弘昭
  • Journal Title: 日本AEM学会誌 Vol.13・No.2 Pages: 113-118
  • NAID: 110003829077
• [Journal Article] 交流透磁率を用いた構造材の非破壊評価 (2005)
  • Author(s): 菊池 弘昭
  • Journal Title: 日本応用磁気学会誌 Vol.29・No.5 Pages: 563-566
• [Presentation] Condition Monitoring for Static Apparatus of NPPs: Role of Modeling and Simulation (2009)
  • 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] Condition Monitoring for Static Apparatus of NPPs : Role of Modeling and Simulation (2009)
  • Author(s): Fumio KOJIMA
  • Organizer: The Asian Workshop on Maintenance Technology for Nuclear Power Plant
  • Place of Presentation: 宮城県・仙台市
  • 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] EMATを用いた減肉形状推定の検討 (2008)
  • Author(s): 小坂 大吾, 小島 史男, 鳥越 誉史
  • Organizer: 第17回MAGDAコンファレンスin日立電磁現象および電磁力に関するコンファレンス
  • Place of Presentation: 茨城県・日立市
  • Year and Date: 2008-11-20
• [Presentation] 電磁超音波による減肉管理手法の検討 (2008)
  • Author(s): 小坂 大吾, 山口 紘史, 鳥越 誉史, 小鳥 史男
  • Organizer: 日本非破壊検査協会平成20年度秋期講演大会
  • Place of Presentation: 宮城県・多賀城市
  • Year and Date: 2008-11-05
• [Presentation] Characterization of Deep-lying Fatigue Cracking Arising in Eddy Current Testing (2008)
  • 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 Mcthodologies using Trust Region Method Arising in Eddy Current Testing (2008)
  • Author(s): Fumio KOJIMA, Yuka Soen
  • Organizer: SICE Annual Conference 2008
  • Place of Presentation: 東京都・調布
  • Year and Date: 2008-08-21
• [Presentation] Characterization of Deep-lying Fatigue Cracking Arising in Eddy Current Testing (2008)
  • Author(s): Kenichi OHSHIMA, Fumio KOJIMA
  • Organizer: SICE Annual Conference 2008
  • Place of Presentation: 東京都・調布
  • Year and Date: 2008-08-21
• [Presentation] Corrosion Shape Recovery by Electromagnetic Acoustic Transducer and its Application to Pipe Wastage Management (2008)
  • Author(s): Daigo Kosaka, Fumio KOJIMA
  • Organizer: SICE Annual Conference 2008
  • Place of Presentation: 東京都・調布
  • Year and Date: 2008-08-21
• [Presentation] Crack Sizing Methodologies using Trust Region Method Arising in Eddy Current Testing (2008)
  • Author(s): F. Kojima and Y. Soen
  • Organizer: SICE Annual Conference 2008
  • Place of Presentation: Chofu
  • Year and Date: 2008-08-20
• [Presentation] 電磁超音波法による減肉の定量評価 (2008)
  • Author(s): 小坂大居, 小島 史男
  • Organizer: 日本保全学会第5回学術講演会
  • Place of Presentation: 茨城県・水戸市
  • Year and Date: 2008-07-11
• [Presentation] ベィズ推定による渦電流探傷法の欠陥寸法計測に関する一手法 (2008)
  • Author(s): 小島 史男, 菊池 光洋
  • Organizer: 日本保全学会第5回学術講演会
  • Place of Presentation: 茨城県・水戸市
  • Year and Date: 2008-07-10
• [Presentation] 電磁超音波法による発電プラントの配管減肉検査シミュレータの開発 (2008)
  • Author(s): 山口 紘史, 小島 史男
  • Organizer: 日本学術会議安全工学シンポジウム2008
  • Place of Presentation: 東京都・新宿区
  • Year and Date: 2008-07-09
• [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] 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: 千波県・鹿鳥
  • Year and Date: 2008-06-13
• [Presentation] 渦電流探傷法による疲労き裂の深さ方向同定 (2008)
  • Author(s): 大鳥 賢一, 小島 史舅
  • Organizer: 第20回「電磁力関連のダイナミクス」シンポジウム
  • Place of Presentation: 大分県別府
  • Year and Date: 2008-05-22
• [Presentation] 電磁超音波法によるステンレス系配竹の減肉サイジング (2008)
  • Author(s): 小坂 大11.. 小島 史舅
  • Organizer: 第20回「電磁力関連のダイナミクス」シンポジウム
  • Place of Presentation: 大分県・別府
  • Year and Date: 2008-05-22
• [Presentation] 正規直交化分解を用いた逆問題解析の高速化手法 渦電流探傷による欠陥形状同定への応用 (2008)
  • Author(s): 小島 史男
  • Organizer: 日本鉄鋼協会第155回春季大会
  • Place of Presentation: 東京、武蔵工業大学
  • Year and Date: 2008-03-27
• [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] 逆問題解析の原子カ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: 水島、岡山
  • Year and Date: 2007-11-09
• [Presentation] Simulator of nondestructive test by EMAT for corrosion shape identification of SUS samples (2007)
  • Author(s): F. Kojima
  • Organizer: The 13th International Symposium on Applied Electromagnetics and Mechanics
  • Place of Presentation: Michigan, USA
  • Year and Date: 2007-09-11
• [Presentation] Deep-lying profiles identification of stress corrosion crack in SUS sample using eddy current analysis (2007)
  • Author(s): F. Kojima
  • Organizer: The 13th International Symposium on Applied Electromagneics and Mechanics
  • Place of Presentation: Michigan, SUA
  • Year and Date: 2007-09-11
• [Presentation] Parameter estimation of nondestructive test by EMAT sensors for corrosion detection of structural materials in nuclear plant (2007)
  • Author(s): F. Kojima
  • Organizer: The 12th International Workshop on Electromagnetic Nondestructive Evaluation
  • Place of Presentation: Cardiff, UK
  • Year and Date: 2007-06-21
• [Presentation] ECT Database and Greedy-Search Inverse Analysis for Crack Shape Recovery Arising in Eddy Current Testing (2006)
  • 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 Mechanics (2006)
  • Author(s): F. Kojima and D.V. Phong
  • Total Pages: 559
  • Publisher: Science and Technology Publishing House
• [Book] Applied Electromagnetics and Mechanics (2006)
  • Author(s): F.Kojima, D.V.Phong
  • Total Pages: 555
  • Publisher: Science and Technology Publishing House