Material Aging Diagnosis System using Magnetic sensing and Simulation

• Project/Area Number: 21560448
• 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 神戸大学, 自然科学系先端融合研究環重点研究部, 教授 (70234763)
• Co-Investigator(Kenkyū-buntansha): KOBAYASHI Futoshi 神戸大学, 大学院・システム情報学研究科, 准教授 (50314042)
• Co-Investigator(Renkei-kenkyūsha): KIKUCI Hiroaki 岩手大学, 工学部, 准教授 (30344617)
• Project Period (FY): 2009 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000); Fiscal Year 2011: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2010: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2009: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
• Keywords: 計測工学 / 信号解析 / 非破壊検査 / 磁性 / システム工学 / 状態監視 / 格子欠陥 / 長寿命化

Research Abstract

It is well known that the magnetism of strong magnetic materials is extremely sensitive with respect to the change of microstructure and to the residual-stress variation. In this study, a non-destructiveness evaluation system for aging properties was developed based on magnetic measurements of the ferromagnetic materials. The coercive force and Barkhausen noise(BHN) were evaluated using carbon steel sample specimens of stress loading. The characteristic curves were then derived by the measured magnetic properties. A fuzzy expert system related to magnetic properties was consequently developed with the decision rules of material aging process. The efficacy and validity of the proposed system were shown in the experimental works

Research Products

• [Journal Article] 配管厚さ測定への電磁超音波探触子の適用 (2012)
  • Author(s): 小坂大吾・小島史男・梅谷浩介
  • Journal Title: 日本保全学会論文集 Volume: 10巻 Pages: 37-44
  • NAID: 40019180966
  • Peer Reviewed
• [Journal Article] Inverse problem for electromagnetic propagation in a dielectric medium using Markov Chain Monte Carlo method (2012)
  • Author(s): Fumio Kojima and J. S. Knopp
  • Journal Title: International Journal of Innovative Computing, Information and Control Volume: Vol.8 Pages: 2339-2346
  • NAID: 130007377373
  • Peer Reviewed
• [Journal Article] 配管厚さ測定への電磁超音波探触子の適用 (2012)
  • Author(s): 小坂大吾, 小島史男, 梅谷浩介
  • Journal Title: 日本保全学会論文集 Volume: 10 Pages: 37-44
  • NAID: 40019180966
  • Peer Reviewed
• [Journal Article] Inverse problem for electromagnetic propagation in a dielectric mediumusing Markov Chain Monte Carlo method (2012)
  • Author(s): F.Kojima, J.S.Knopp
  • Journal Title: International Journal of Innovative Computing, Information and Control Volume: 8 Pages: 2339-2346
  • NAID: 130007377373
  • Peer Reviewed
• [Journal Article] Nondestructive interrogation of dielectric materials using Markov Chain Monte Carlo method for structural equation model (2011)
  • Author(s): F.Kojima, T.Usami
  • Journal Title: Studies in Applied Electromagnetics and Mechanics Volume: 36 Pages: 37-44
  • Peer Reviewed
• [Journal Article] Evaluation of subsurface shape of fatigue crack with eddy currenttesting signals (2011)
  • Author(s): K.Ohshima, F.Kojima
  • Journal Title: Studies in Applied Electromagnetics and Mechanics Volume: 36 Pages: 87-92
  • Peer Reviewed
• [Journal Article] Pipe wall thickness measurements on flow accelerated corrosion by electro-magnetic acoustic transducer (2011)
  • Author(s): D.Kosaka, F.Kojima, K.Umetani
  • Journal Title: Studies in Applied Electromagnetics and Mechanics Volume: 36 Pages: 233-240
  • Peer Reviewed
• [Journal Article] ハイブリッド計測による配管ヘルスモニタリング法の研究 (2010)
  • Author(s): 田川明広, 小島史男
  • Journal Title: 日本保全学会論文集 Volume: 9巻, 1号 Pages: 45-50
  • NAID: 40017096231
  • Peer Reviewed
• [Journal Article] データベースとGreedy探索を用いた渦電流探傷法における欠陥同定 (2010)
  • Author(s): Thanh Duong Nguyen・小島史男
  • Journal Title: システム制御情報学会論文誌 Volume: 23巻 Pages: 74-82
  • Peer Reviewed
• [Journal Article] Investigation of an on-line pipe wall defect monitoring sensor (2010)
  • Author(s): Akira Tagawa, Koichi Fujiki, and Fumio Kojima
  • Journal Title: International Journal of Applied Electromagnetics and Mechanics Volume: 33巻 Pages: 639-647
  • Peer Reviewed
• [Journal Article] Identification of sub-surface defect parameters in plates using electromagnetic acoustic interaction (2010)
  • Author(s): Thanh Duong Nguyen and Fumio Kojima
  • Journal Title: International Journal of Applied Electromagnetics and Mechanics Volume: 33巻 Pages: 1009-1015
  • Peer Reviewed
• [Journal Article] Quantitative evaluation of wall thinning in pipe wall using electromagnetic acoustic transducer (2010)
  • Author(s): Daigo Kosaka, Fumio Kojima, and Hiroshi Yamaguchi
  • Journal Title: International Journal of Applied Electromagnetics and Mechanics Volume: 33巻 Pages: 1195-1200
  • Peer Reviewed
• [Journal Article] Evaluation of geometrical shape in fatigue cracking (2010)
  • Author(s): Kenichi Ohshima and Fumio Kojima
  • Volume: 33巻
  • Pages: 1211-1218
  • Peer Reviewed
• [Journal Article] Monitoring system for pipe wall thinning management using electromagnetic acoustic transducer (2010)
  • Author(s): Daigo Kosaka, Fumio Kojima, Hiroshi Yamaguchi, and Kousuke Umetani
  • Journal Title: E-Journal of Advanced Maintenance Volume: 2巻, 1号 Pages: 34-42
  • Peer Reviewed
• [Journal Article] Identification of sub-surface defect parameters in plates using electromagnetic acoustic interaction (2010)
  • Author(s): T-D Nguyen, F.Kojima
  • Journal Title: International Journal of Applied Electromagnetics and Mechanics Volume: 33 Pages: 1009-1015
  • Peer Reviewed
• [Journal Article] Quantitative evaluation of wall thinning in pipe wall using electromagnetic acoustic transducer (2010)
  • Author(s): D.Kosaka, F.Kojima, H.Yamaguchi
  • Journal Title: International Journal of Applied Electromagnetics and Mechanics Volume: 33 Pages: 1195-1200
  • Peer Reviewed
• [Journal Article] Evaluation of geometrical shape in fatigue cracking using ECT signals (2010)
  • Author(s): D.Ohshima, F.Kojima
  • Journal Title: International Journal of Applied Electromagnetics and Mechanics Volume: 33 Pages: 1195-1200
  • Peer Reviewed
• [Journal Article] Sizing methodologies of pipe wall thinning and visualization of wave propagation by EMAT simulator in nuclear plant (2010)
  • Author(s): D.Kosaka, F.Kojima, H.Yamaguchi
  • Journal Title: Studies in Applied Electromagnetics and Mechanics Volume: 33 Pages: 111-118
  • Peer Reviewed
• [Journal Article] データベースとグリーデイ探索を用いた渦電流探傷法における欠陥同定 (2010)
  • Author(s): T-D Nguyen, F.Kojima
  • Journal Title: システム制御情報学会論文誌 Volume: 23 Pages: 74-82
  • Peer Reviewed
• [Journal Article] Forward method for crack profiles identification using reduced order decomposition techniques arising in eddy current testing (2009)
  • Author(s): Thanh Duong Nguyen and Fumio Kojima
  • Journal Title: SICE Journal of Control, Measurement and System Integration Volume: 2巻, 6号 Pages: 401-407
  • NAID: 10031152668
  • Peer Reviewed
• [Journal Article] Three Dimensional Shape Recovery of Fatigue Crack using Eddy Current Testing Signals (2009)
  • Author(s): Kenichi OSHIMA, Fumio KOJIMA
  • Journal Title: Studies on Applied Electromagnetics and Mechanics Vol.32 Pages: 329-334
  • Peer Reviewed
• [Journal Article] Crack Profiles Identification using Reduced Order Computational Method Based on ECT Signals (2009)
  • Author(s): Duong Thanh NGUYEN、Fumio KOJIMA
  • Journal Title: Studies on Applied Electromagnetics and Mechanics Vol.32 Pages: 180-185
  • Peer Reviewed
• [Journal Article] Forward Method for Crack Profiles Identification using Reduced Order Decomposition Techniques Arising in Eddy Current Testing (2009)
  • Author(s): Duong Thanh NGUYEN、Fumio KOJIMA
  • Journal Title: SICE Journal of Control, Measurement, and System Integration Vol.2, No.6 Pages: 401-407
  • NAID: 10031152668
  • Peer Reviewed
• [Presentation] Pipe wall thickness management for flow accelerated corrosion using EMAT monitpring system (2011)
  • Author(s): Fumio Kojima, Daigo Kosaka, Kosuke Umetani
  • Organizer: The Eighth International Conference on Flow Dynamics (ICFD2011)
  • Place of Presentation: Hotel Metropolitan Sendai(宮城県)(招待講演)
  • Year and Date: 2011-11-09
• [Presentation] Inverse methodologies for structural monitoring using electromagnetic measurements (2011)
  • Author(s): Fumio Kojima
  • Organizer: International Workshop on Simulation and Modeling related to Computational Science and Robotics Technology(SiMCRT2011)
  • Place of Presentation: Kobe
  • Year and Date: 2011-11-02
• [Presentation] Inverse methodologies for structural health monitoring using electromagnetic measurements (2011)
  • Author(s): Fumio Kojima
  • Organizer: International Workshop on Simulation and Modeling related to Computational Science and Robotics Technology (SiMCRT2011)
  • Place of Presentation: Takikawa Memorial Hall, Kobe University,(兵庫県)
  • Year and Date: 2011-11-02
• [Presentation] 配管検査技術に関する知見適用化の取り組み (2011)
  • Author(s): 小島史男・大平拓
  • Organizer: 日本機械学会2011年度年次大会先端技術フォーラム
  • Place of Presentation: 東京
  • Year and Date: 2011-09-14
• [Presentation] 配管検査技術に関する知見適用化の取り組み (2011)
  • Author(s): 小島史男、大平拓
  • Organizer: 日本機械学会2011年度年次大会先端技術フォーラム
  • Place of Presentation: 東京工業大学大岡山キャンパス(東京都)(招待講演)
  • Year and Date: 2011-09-14
• [Presentation] Recent trends on condition monitoring using electromagnetic measurements (2011)
  • Author(s): Fumio Kojima
  • Organizer: The 15^<th> International Symposium on Applied Electromagnetics and Mechanics(ISEM2011)
  • Place of Presentation: Napoli, Italy
  • Year and Date: 2011-09-07
• [Presentation] Recent trends on condition monitoring using electromagnetic measurements (2011)
  • Author(s): Fumio Kojima
  • Organizer: The 15th International Symposium on Applied Electromagnetics and Mechanics (ISEM2011)
  • Place of Presentation: Royal Continental Hotel, Napoli, Italy(基調講演)
  • Year and Date: 2011-09-07
• [Presentation] ファジイ推論を用いた材料経年劣化に関する電磁非破壊評価法 (2011)
  • Author(s): 小島史男・小坂大吾・田中里香
  • Organizer: 第21回インテリジェント・システム・シンポジウム(FAN2011)
  • Place of Presentation: 神戸
  • Year and Date: 2011-09-01
• [Presentation] ファジィ推論を用いた材料経年劣化に関する電磁非破壊評価法 (2011)
  • Author(s): 小島史男, 小坂大吾, 田中里香
  • Organizer: 第21回インテリジェントシステムシンポジウム(FAN2011)
  • Place of Presentation: 神戸大学工学研究科(兵庫県)
  • Year and Date: 2011-09-01
• [Presentation] 運転中モニタリングとハイブリッドセンシング (2011)
  • 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「センサ情報の高度処理技術」
  • Place of Presentation: 福山
  • Year and Date: 2011-06-08
• [Presentation] 運転中モニタリングとハイブリッドセンシング (2011)
  • Author(s): 小島史男
  • Organizer: 鉄鋼協会計測・制御・システム工学部会シンポジウム「センサ情報の高度処理技術」
  • Place of Presentation: 福山市労働会館「みやび」(広島県)(招待講演)
  • Year and Date: 2011-06-08
• [Presentation] Evaluation of subsurface shape of fatigue crack with eddy current signals (2011)
  • Author(s): Kenichi Ohshima and Fumio Kojima
  • Organizer: The 16^<th> International Workshop on Electromagnetic Nondestructive Evaluation(ENDE2011)
  • Place of Presentation: Chennai, India
  • Year and Date: 2011-03-11
• [Presentation] Pipe wall thickness measurements on flow accelerated corrosion by electro-magnetic acoustic transducer (2011)
  • Author(s): D.Kosaka, F.Kojima, K.Umetani
  • Organizer: The 16^<th> International Workshop on Electromagnetic Nondestructive Evaluation
  • Place of Presentation: IIT Madras, Chennai (India)
  • Year and Date: 2011-03-11
• [Presentation] Evaluation of subsurface shape of fatigue crack by eddy current testing (2011)
  • Author(s): K.Ohshima, F.Kojima
  • Organizer: The 16^<th> International Workshop on Electromagnetic Nondestructive Evaluation
  • Place of Presentation: IIT Madras, Chennai (India)(招待講演)
  • Year and Date: 2011-03-10
• [Presentation] Nondestructive Interrogation of Dielectric Materials using Markov Chain Monte Carlo Method for Structural Equation Model (2011)
  • Author(s): F.Kojima, T.Usami
  • Organizer: The 16^<th> International Workshop on Electromagnetic Nondestructive Evaluation
  • Place of Presentation: IIT Madras, Chennai (India)
  • Year and Date: 2011-03-10
• [Presentation] Inverse problem for electromagnetic propagation in a dielectric Medium using Markov Chain Monte Carlo Method (2010)
  • Author(s): F.Kojima
  • Organizer: The 42^<nd> ISCIE International Symposium on Stochastic System Theory and its Application
  • Place of Presentation: (岡山県)岡山理科大学
  • Year and Date: 2010-11-27
• [Presentation] Smart condition monitoring techniques for implementing reliability centered maintenance in nuclear power plants (2010)
  • Author(s): Fumio Kojima
  • Organizer: The 2010 International Symposium on Intelligent Systems(iFAN2010)
  • Place of Presentation: Tokyo
  • Year and Date: 2010-09-26
• [Presentation] Smart condition monitoring techniques for implementing reliability centered maintenance in nuclear power plants (2010)
  • Author(s): F.Kojima
  • Organizer: The 20th Symposium on Intelligent System (iFAN Tokyo)
  • Place of Presentation: (東京都)首都大学東京(基調講演)
  • Year and Date: 2010-09-26
• [Presentation] 配管減肉予測および検査技術の高度化(17)電磁超音波法による配管減肉定量評価法の有効性検証 (2010)
  • Author(s): 小島史男・小坂大吾・梅谷浩介
  • Organizer: 日本原子力学会2010年秋の大会
  • Place of Presentation: 札幌
  • Year and Date: 2010-09-16
• [Presentation] 配管減肉予測および検査技術の高度化(17)電磁超音波法による配管減肉定量評価法の有効性検証 (2010)
  • Author(s): 小島史男、小坂大吾、梅谷浩介
  • Organizer: 日本原子力学会2010秋の大会
  • Place of Presentation: 北海道大学工学研究科
  • Year and Date: 2010-09-16
• [Presentation] Shape identification on pipe-wall thinning using electromagnetic acoustic transducer (2010)
  • Author(s): Fumio Kojima, Thanh Duong Nguyen, and Hiroishi Yamaguchi
  • Organizer: The 37^<th> Annaul Review of Progress in Quantitative Nondestructive Evaluation
  • Place of Presentation: San Diego, USA
  • Year and Date: 2010-07-19
• [Presentation] Shape identification of pipe-wall thinning using electromagnetic acoustic transducer (2010)
  • Author(s): F.Kojima, T-H Nguyen, H.Yamaguchi
  • Organizer: 2010 Review of Progress on Quantitative Nondestructive Evaluation
  • Place of Presentation: San Diego, CA, (USA)
  • Year and Date: 2010-07-19
• [Presentation] Continuous surveillance technique for flow accelerated corrosion of pipe wall using electromagnetic acoustic transducer (2010)
  • Author(s): F.Kojima, D.Kosaka, K.Umetani
  • Organizer: 2010 Review of Progress on Quantitative Nondestructive Evaluation
  • Place of Presentation: San Diego, CA, (USA)
  • Year and Date: 2010-07-19
• [Presentation] 流れ加速腐食を想定した配管厚さ測定への電磁超音波探触子の適用について (2010)
  • Author(s): 小坂大吾、小島史男、梅谷浩介
  • Organizer: 日本保全学会第7回学術講演会
  • Place of Presentation: (静岡県)御前崎市中部電力浜岡原子力館
  • Year and Date: 2010-07-14
• [Presentation] 電磁超音波共鳴法を用いた配管厚さ寸法計測のための信号処理法 (2010)
  • Author(s): 小島史男、小坂大吾、梅谷浩介
  • Organizer: 日本保全学会第7回学術講演会
  • Place of Presentation: (静岡県)御前崎市中部電力浜岡原子力館
  • Year and Date: 2010-07-13
• [Presentation] Pipe wall thickness measurement by electro-magnetic acoustic transducer using band exciting method (2010)
  • Author(s): D.Kosaka, F.Kojima, K.Umetani
  • Organizer: The 15^<th> International Workshop on Electromagnetic Nondestructive Evaluation
  • Place of Presentation: Szczecin, (Poland)
  • Year and Date: 2010-06-14
• [Presentation] 電磁超音波共鳴法を用いた配管減肉計測 (2010)
  • Author(s): 小坂大吾, 小島史男
  • Organizer: 第22回「電磁力関連のダイナミクス」シンポジウム
  • Place of Presentation: (福岡県)九州市門司港ホテル
  • Year and Date: 2010-05-21
• [Presentation] 渦電流探傷法における自然き裂の形状効果 (2010)
  • Author(s): 大島賢一, 小島史男
  • Organizer: 第22回「電磁力関連のダイナミクス」シンポジウム
  • Place of Presentation: (福岡県)北九州市門司港ホテル
  • Year and Date: 2010-05-21
• [Presentation] 電磁非破壊試験と逆問題解析の統合化による材料欠陥寸法計測 (2010)
  • Author(s): 小島史男
  • Organizer: 日本鉄鋼協会第159回春季講演大会
  • Year and Date: 2010-03-29
• [Presentation] Sizing methodology for structured materials of NPPs using electromagnetic non-destructive testing (2010)
  • Author(s): Fumio Kojima
  • Organizer: The 20^<th> Memorial Annual Conference of Indian Nuclear Society(INSAC-2000)
  • Place of Presentation: Chennai, India
  • Year and Date: 2010-01-06
• [Presentation] Sizing Methodology for Structured Materials of NPPs using Electromagnetic Non-Destructive Testing(招待講演) (2010)
  • Author(s): 小島史男
  • Organizer: The 20^<th> Annual Conference of Indian Nuclear Society(INSAC2009)
  • Place of Presentation: Chennai, India
  • Year and Date: 2010-01-06
• [Presentation] Investigation of an On-line Pipe Wall Defect Monitoring Sensor (2009)
  • Author(s): Akihiko TAGAWA, Kazunari FUJIKI, Fumio KOJIMA
  • Organizer: The 14^<th> International Symposium on Applied Electromagnetics and Mechanics(ISEM)
  • Place of Presentation: Xi'an, China
  • Year and Date: 2009-09-23
• [Presentation] New trends in inverse analysis using data assimilation and application to electromagnetic nondestructive evaluation (2009)
  • Author(s): Fumio Kojima
  • Organizer: The 14^<th> International Symposium on Applied Electromagnetics and Mechanics(ISEM' 2009)
  • Place of Presentation: Xian, China
  • Year and Date: 2009-09-22
• [Presentation] New trends in inverse analysis using data assimilation and application to electromagnetic nondestructive evaluation(招待講演) (2009)
  • Author(s): 小島史男
  • Organizer: The 14^<th> International Symposium on Applied Electromagnetics and Mechanics(ISEM)
  • Place of Presentation: Xi'an, China
  • Year and Date: 2009-09-22
• [Presentation] Evaluation of geometrical shape in fatigue cracking using ECT signals (2009)
  • Author(s): Kenichi OSHIMA, Fumio KOJIMA
  • Organizer: The 14^<th> International Symposium on Applied Electromagnetics and Mechanics(ISEM)
  • Place of Presentation: Xi'an, China
  • Year and Date: 2009-09-22
• [Presentation] Structural Health Monitoring of NPPs : Role of Modelling and Simulation(Keynote Speech) (2009)
  • Author(s): 小島史男
  • Organizer: International Conference on CM2009-MFPT2009
  • Place of Presentation: Dublin, Ireland
  • Year and Date: 2009-06-24
• [Presentation] モデル周辺尤度を用いた過電流探傷法による複数欠陥の寸法計測に関する研究 (2009)
  • Author(s): 菊池光洋、小島史男
  • Organizer: 第53回システム制御情報学会研究発表講演会(SCI09)
  • Place of Presentation: 神戸市産業振興センター(兵庫県)
  • Year and Date: 2009-05-22