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In-situ nondestructive inspection for detecting weld-defect during welding process of CFRTP

Research Project

Project/Area Number 23760089
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Materials/Mechanics of materials
Research InstitutionTokyo Institute of Technology

Principal Investigator

MIZUTANI YOSHIHIRO  東京工業大学, 理工学研究科, 准教授 (40337879)

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: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2011: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywords非破壊検査 / 複合材料 / 熱可塑性CFRP / 融着・溶着 / 渦電流試験 / 融着不良 / CFRTP / 融着 / 誘導加熱 / 渦電流対象試験 / 渦電流探傷法 / 渦電流探傷試験
Research Abstract

A eddy current inspection sheet which can be embedded in a welding equipment for carbon fiber reinforced thermoplastics (CFRTP) was developed. The sheet consists of an exciting coil and several number of detection coils. Specimens are heated by applying voltage to the exciting coil. When weld defect is present, the temperature around the defect is changed from sound area. Since electrical conductivity is chanded with temperature, electrical conductivity at around the defect is also changed from that of sound area. By measuring distribution of electrical conductivity of inspection area, weld defect can be detected. Feasibility of the developed system was examined by using a CFRTP specimen with artificial weld defect. The result shows the deveped system can be used for detecting weld defect with sufficient accuracy. Self-resistance welding method which utilizes the conductivity of the CFRP was also developed.

Report

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

    (29 results)

All 2014 2013 2012 2011

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (23 results) Patent(Industrial Property Rights) (3 results)

  • [Journal Article] Detection of defects in thermoplastic CFRP welded zones using eddy current thermo-sensing2014

    • Author(s)
      水上孝一,水谷義弘,轟章,鈴木良郎
    • Journal Title

      Transactions of the JSME (in Japanese)

      Volume: 80 Issue: 812 Pages: SMM0084-SMM0084

    • DOI

      10.1299/transjsme.2014smm0084

    • NAID

      130003399173

    • ISSN
      2187-9761
    • Related Report
      2013 Annual Research Report 2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] 熱可塑性CFRPの導電性を利用した自己抵抗融着に関する研究2013

    • Author(s)
      河越正羽,水谷義弘,轟章,松崎亮介,安岡哲夫
    • Journal Title

      日本機械学会論文集

      Volume: 79-801 Pages: 555-562

    • NAID

      130003374630

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] 熱可塑性CFRPの導電性を利用した自己抵抗融着に関する研究2013

    • Author(s)
      河越正羽,水谷義弘,轟章,松崎亮介,安岡哲夫
    • Journal Title

      日本機会学会論文集

      Volume: 未定

    • NAID

      130003374630

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Presentation] Detection of delamination in thermoplastic CFRP weld parts using eddy current testing and induction heating2014

    • Author(s)
      K. Mizukami, Y. Mizutani, A. Todoroki, and Y.Suzuki
    • Organizer
      11th European Conference on Non-Destructive Testing
    • Place of Presentation
      Prague, Czech Republic(accepted)
    • Related Report
      2013 Final Research Report
  • [Presentation] CFRP積層板中の誘導電流分布解析解の導出2014

    • Author(s)
      水上孝一,水谷義弘,轟章,鈴木良郎
    • Organizer
      第5回日本複合材料会議JCCM-5
    • Place of Presentation
      京都府
    • Related Report
      2013 Final Research Report
  • [Presentation] Detection of delamination in thermoplastic CFRP weld parts using eddy current testing and induction heating2014

    • Author(s)
      K. Mizukami, Y. Mizutani, A. Todoroki, and Y.Suzuki
    • Organizer
      11th European Conference on Non-Destructive Testing
    • Place of Presentation
      Prague, Czech Republic
    • Related Report
      2013 Annual Research Report
  • [Presentation] CFRP積層板中の誘導電流分布の解析解の導出2014

    • Author(s)
      水上孝一,水谷義弘,轟章,鈴木良郎
    • Organizer
      第5回日本複合材料会議
    • Place of Presentation
      京都
    • Related Report
      2013 Annual Research Report
  • [Presentation] In-situ inspection of thermoplastic CFRP welded zones using eddy current thermo-sensing2013

    • Author(s)
      K. Mizukami, Y. Mizutani, A. Todoroki, and Y.Suzuki
    • Organizer
      Laser Processing for CFRP and Composite Materials
    • Place of Presentation
      Yokohama, Japan
    • Year and Date
      2013-04-23
    • Related Report
      2013 Final Research Report
  • [Presentation] 導電率の温度特性を利用した渦電流試験による熱可塑性CFRP融着不良の検出2013

    • Author(s)
      水上孝一,水谷義弘,轟章,鈴木良郎
    • Organizer
      日本非破壊検査協会秋季講演大会
    • Place of Presentation
      広島県
    • Related Report
      2013 Final Research Report
  • [Presentation] 導電率の温度特性を利用した渦電流試験による熱可塑性CFRP融着部の検査2013

    • Author(s)
      水上孝一,水谷義弘,轟章,鈴木良郎
    • Organizer
      日本機械学会M&M材料力学カンファレンス2013
    • Place of Presentation
      岐阜県
    • Related Report
      2013 Annual Research Report 2013 Final Research Report
  • [Presentation] 渦電流試験による表面温度測定を用いた熱可塑性CFRP融着部のはく離欠陥検出2013

    • Author(s)
      水上孝一,水谷義弘,轟章,鈴木良郎
    • Organizer
      第38回複合材料シンポジウム
    • Place of Presentation
      鹿児島県
    • Related Report
      2013 Annual Research Report 2013 Final Research Report
  • [Presentation] 誘導加熱と渦電流試験を用いた熱可塑性CFRP融着部の不良検出2013

    • Author(s)
      水上孝一,水谷義弘,轟章,鈴木良郎
    • Organizer
      日本実験力学会年次大会
    • Place of Presentation
      秋田県
    • Related Report
      2013 Annual Research Report 2013 Final Research Report
  • [Presentation] 渦電流を用いた熱可塑性CFRPの融着部の健全性モニタリング2013

    • Author(s)
      水上孝一,水谷義弘,轟章
    • Organizer
      第4回日本複合材料合同会議JCCM-4
    • Place of Presentation
      東京都
    • Related Report
      2013 Final Research Report
  • [Presentation] In-situ inspection of thermoplastic CFRP welded zones using eddy current thermo-sensing2013

    • Author(s)
      K. Mizukami, Y. Mizutani, A. Todoroki, and Y.Suzuki
    • Organizer
      Laser Processing for CFRP and Composite Materials, LPCC1-3
    • Place of Presentation
      Yokohama, JAPAN
    • Related Report
      2013 Annual Research Report
  • [Presentation] 導電率の温度特性を利用した渦電流試験による熱可塑性CFRP融着不良の検出2013

    • Author(s)
      水上孝一,水谷義弘,轟章,鈴木良郎
    • Organizer
      日本非破壊検査協会秋季講演大会
    • Place of Presentation
      広島
    • Related Report
      2013 Annual Research Report
  • [Presentation] 非接触渦電流温度測定による熱可塑性CFRP融着部の健全性評価2012

    • Author(s)
      水上孝一,水谷義弘,轟章,鈴木良郎
    • Organizer
      日本実験力学会分科会合同ワークショップ
    • Place of Presentation
      新潟県
    • Related Report
      2013 Final Research Report
  • [Presentation] 炭素繊維強化熱可塑性樹脂複合材料の導電性を利用した自己抵抗融着に関する基礎研究2012

    • Author(s)
      河越正羽、水谷義弘、轟章
    • Organizer
      日本複合材料合同会議JCOM-41/JSCM2012
    • Place of Presentation
      京都
    • Related Report
      2013 Final Research Report
  • [Presentation] 炭素繊維強化熱可塑性樹脂複合材料の導電性を利用した自己抵抗融着に関する基礎研究2012

    • Author(s)
      河越正羽、水谷義弘、轟章
    • Organizer
      日本複合材料合同会議 JCOM-41/JSCM2012
    • Place of Presentation
      キャンパスプラザ京都
    • Related Report
      2011 Research-status Report
  • [Presentation] CF/PEIおよびCF/PPSのジュール発熱を利用した融着に関する基礎的研究2011

    • Author(s)
      河越正羽、水谷義弘、轟章
    • Organizer
      日本材料学会第15回破壊力学シンポジウム
    • Place of Presentation
      沖縄
    • Related Report
      2013 Final Research Report
  • [Presentation] A fundamental study on electric resistance welding of CF/PEI2011

    • Author(s)
      M.Kawagoe, Y. Mizutani, A. Todoroki
    • Organizer
      JISSE 12th
    • Place of Presentation
      SAMPE,東京
    • Related Report
      2013 Final Research Report
  • [Presentation] A basic study on the way of welding of CFRTP joint using Joule heat of CFRTP2011

    • Author(s)
      M.Kawagoe, Y. Mizutani, A. Todoroki, R.Matsuzaki
    • Organizer
      ATEM'11 JSME-MMD
    • Place of Presentation
      神戸
    • Related Report
      2013 Final Research Report
  • [Presentation] CFRTP継手の電気抵抗を利用した融着法に関する研究2011

    • Author(s)
      河越正羽、水谷義弘、轟章、松崎亮介
    • Organizer
      日本機械学会M&M2011材料力学カンファレンス
    • Place of Presentation
      福岡
    • Related Report
      2013 Final Research Report
  • [Presentation] A basic study on the way of welding of CFRTP joint using Joule heat of CFRTP2011

    • Author(s)
      M.Kawagoe, Y. Mizutani, A. Todoroki, R. Matsuzaki
    • Organizer
      ATEM'11 JSME-MMD
    • Place of Presentation
      神戸コンベンションセンター
    • Related Report
      2011 Research-status Report
  • [Presentation] A fundamental study on electric resistance welding of CF/PEI2011

    • Author(s)
      M.Kawagoe, Y. Mizutani, A. Todoroki
    • Organizer
      JISSE 12th, SAMPE
    • Place of Presentation
      東京ファッションタウンビル
    • Related Report
      2011 Research-status Report
  • [Presentation] CFRTP継手の電気抵抗を利用した融着法に関する研究2011

    • Author(s)
      河越正羽、水谷義弘、轟章、松崎亮介
    • Organizer
      日本機械学会M&M2011材料力学カンファレンス
    • Place of Presentation
      九州工業大学
    • Related Report
      2011 Research-status Report
  • [Presentation] CF/PEIおよびCF/PPSのジュール発熱を利用した融着に関する基礎的研究2011

    • Author(s)
      河越正羽、水谷義弘、轟章
    • Organizer
      日本材料学会 第15回破壊力学シンポジウム
    • Place of Presentation
      石垣市商工会館
    • Related Report
      2011 Research-status Report
  • [Patent(Industrial Property Rights)] 複合材料検査装置と方法2013

    • Inventor(s)
      水上孝一,水谷義弘,轟章,鈴木良郎,荒川敬弘
    • Industrial Property Rights Holder
      東京工業大学,IHI検査計測
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2013-184139
    • Filing Date
      2013-09-05
    • Related Report
      2013 Final Research Report
  • [Patent(Industrial Property Rights)] 複合材料検査装置と方法2013

    • Inventor(s)
      水上孝一,水谷義弘、轟章,鈴木良郎,荒川敬弘
    • Industrial Property Rights Holder
      東京工業大学
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2013-184139
    • Filing Date
      2013-09-05
    • Related Report
      2013 Annual Research Report
  • [Patent(Industrial Property Rights)] CFRTP材の融着方法2011

    • Inventor(s)
      水谷義弘,轟章,河越正羽,村田将之
    • Industrial Property Rights Holder
      東京工業大学
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2011-055730
    • Filing Date
      2011-03-14
    • Related Report
      2013 Final Research Report

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

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