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Development of the New Nondestructive Material Degradation Evaluation Method Using the Low Frequency Excitation Magnetic Sensor Under the DC Magnetic Field

Research Project

Project/Area Number 23560518
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Measurement engineering
Research InstitutionOita National College of Technology

Principal Investigator

OKA Mohachiro  大分工業高等専門学校, 情報工学科, 教授 (80107838)

Co-Investigator(Renkei-kenkyūsha) YAKUSHIJI Terutosi  大分工業高等専門学校, 機械工学科, 教授 (90210228)
ENOKIZONO Masato  大分大学, 工学部電気電子工学科, 教授 (40136784)
Project Period (FY) 2011 – 2013
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2012: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2011: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords疲労破壊 / 疲労 / 磁気センサ / 渦電流法 / 直流磁界 / 鉄系構造材 / 非破壊検査
Research Abstract

In the fatigue evaluation of an iron-based structural material, the inductance method that uses a pancake-type coil is reported to be effective. This method cannot evaluate the inside fatigue of a specimen because the eddy current does not penetrate into the inside of a specimen through the skin effect. In this method, the accuracy of the fatigue evaluation depends on the surface condition of a specimen. In this study we applied pulsating tension fatigue. We achieved the following results. The detection of pulsating tension fatigue of specimens made of low carbon steel was originally possible by the inductance method which used 10kHz as a excitation frequency. We attempted the improvement of the sensibility using the inductance method excited in the low frequency together with the dc magnetization method that used Nd magnets. This method could evaluate pulsating tension fatigue of a specimen irrespective of the surface condition.

Report

(4 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • 2011 Research-status Report
  • Research Products

    (10 results)

All 2013 2012 2011

All Journal Article (2 results) Presentation (8 results)

  • [Journal Article] Examination of the Inductance Method for Non-Destructive Testing in Structural Metallic Material by Means of the Pancake-type Coil2013

    • Author(s)
      M. Oka, T. Yakushiji, Y. Tsuchida, and M. Enokizono
    • Journal Title

      Journal of the Japan Society of Applied Electromagnetics and Mechanics

      Volume: Vol. 21, No. 3 Pages: 488-493

    • NAID

      10031192123

    • Related Report
      2013 Annual Research Report 2013 Final Research Report
  • [Journal Article] Fatigue Evaluation of Low Carbon Steel by Means of the Inductance Method Using a Pancake-Type Coil2012

    • Author(s)
      M. Oka, T. Yakushiji, Y. Tsuchida, and M. Enokizono
    • Journal Title

      Journal of the Japan Society of Applied Electromagnetics and Mechanics

      Volume: Vol. 20, No. 2 Pages: 514-519

    • NAID

      110009544613

    • Related Report
      2013 Final Research Report 2012 Research-status Report
  • [Presentation] 磁気的手法によるオーステナイトステンレス(SUS316L)の片振引張疲労評価2013

    • Author(s)
      岡茂八郎,薬師寺輝敏,榎園正人
    • Organizer
      第22回MAGDAコンファレンスin宮崎電磁現象および電磁力に関するコンファレンス
    • Place of Presentation
      宮崎観光ホテル(宮崎県宮崎市)
    • Year and Date
      2013-12-02
    • Related Report
      2013 Final Research Report
  • [Presentation] Fatigue Evaluation of the Iron-based Structural Material (SUS430) by the Eddy Current Sensor under the DC Magnetic Field2013

    • Author(s)
      T. Komiya, M. Oka, T. Yakushiji, and M. Enokizono
    • Organizer
      15th Japan Korea Joint Symposium on the Applied Electromagnetics
    • Place of Presentation
      Sungkyunkwan University (Suwon Korea)
    • Year and Date
      2013-02-01
    • Related Report
      2013 Final Research Report
  • [Presentation] 磁気的手法によるオーステナイトステンレス(SUS316L)の片振引張疲労評価2013

    • Author(s)
      岡茂八郎,薬師寺輝敏,榎園正人
    • Organizer
      第22回MAGDAコンファレンス in 宮崎 電磁現象および電磁力に関するコンファレンス
    • Place of Presentation
      宮崎観光ホテル(宮崎県宮崎市)
    • Related Report
      2013 Annual Research Report
  • [Presentation] Fatigue Evaluation of the Iron-based Structural Material (SUS430) by the Eddy Current Sensor under the DC Magnetic Field2013

    • Author(s)
      T. Komiya, M. Oka, T. Yakushiji, and M. Enokizono
    • Organizer
      Proceedings of 15th Japan Korea Joint Symposium on the Applied Electromagnetics
    • Place of Presentation
      Sungkyunkwan University (Suwon City, 韓国)
    • Related Report
      2012 Research-status Report
  • [Presentation] Examination of the Inductance Method for Non-Destructive Testing in Structural Metallic Material by Means of the Pancake-type Coil2012

    • Author(s)
      M. Oka, T. Yakushiji, Y. Tsuchida, and M. Enokizono
    • Organizer
      7th Asia-Pacific symposium on Applied Electromagnetics and Mechanics
    • Place of Presentation
      Majestic Saigon Hotel (Ho Chi Minh City, Vietnam)
    • Year and Date
      2012-07-26
    • Related Report
      2013 Final Research Report
  • [Presentation] Examination of the Inductance Method for Non-Destructive Testing in Structural Metallic Material by Means of the Pancake-type Coil2012

    • Author(s)
      M. Oka, T. Yakushiji, Y. Tsuchida, and M. Enokizono
    • Organizer
      Digests of 7th Asia-Pacific symposium on Applied Electromagnetics and Mechanics
    • Place of Presentation
      Majestic Hotel (Ho Chi Minh City, ベトナム)
    • Related Report
      2012 Research-status Report
  • [Presentation] Fatigue Evaluation of Low Carbon Steel by Means of the Inductance Method Using a Pancake-Type Coil2011

    • Author(s)
      M. Oka, T. Yakushiji, Y. Tsuchida, and M. Enokizono
    • Organizer
      20th MAGDA Conference in Pacific Asia
    • Place of Presentation
      Garden Villa Kaohsiung (Kaohsiung Taiwan)
    • Year and Date
      2011-11-16
    • Related Report
      2013 Final Research Report
  • [Presentation] Fatigue Evaluation of Low Carbon Steel by Means of the Inductance Method Using a Pancake-Type Coil2011

    • Author(s)
      M. Oka, T. Yakushiji, Y. Tsuchida, and M. Enokizono
    • Organizer
      The 20th MAGDA Conference in Pacific Asia
    • Place of Presentation
      Kaohsiung, Taiwan
    • Related Report
      2011 Research-status Report

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Published: 2011-08-05   Modified: 2019-07-29  

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