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Time dependence of mechanical property of triaxial woven CFRP

Research Project

Project/Area Number 25420041
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Materials/Mechanics of materials
Research InstitutionTokyo University of Science

Principal Investigator

Koyanagi Jun  東京理科大学, 基礎工学部, 講師 (60386604)

Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
KeywordsCFRP / 三軸織物CFRP / 画像相関法 / 周期セルシミュレーション / 複合材料 / 織物複合材料 / 有限要素法 / 接触解析 / 変位測定 / 宇宙材料
Outline of Final Research Achievements

By means of digital image correlation (DIC) method, time dependence of mechanical property of triaxial woven CFRP is investigated. The triaxl woven CFRP is intended for using in space and it is flexible and behaves as membrane. Although it is conventionally difficult to evaluate the mechanical property because its structure is complecated, employing DIC unable us to do it. One of the remarkable findings obtained in this study is that macro creep strain increases with time under a creep loading condition but fiber directional strain does not. This is due to "scissoring effect" involving woven stractural change. Now we can discuss a long-term durability of the triaxial woven CFRP.

Report

(4 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • 2013 Research-status Report
  • Research Products

    (4 results)

All 2016 2014

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (2 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Time dependence of mesoscopic strain distribution for triaxial woven carbon-fiber-reinforced polymer under creep loading measured by digital image correlation2016

    • Author(s)
      Jun Koyanagi, Nagayama H, Yoneyama S, Aoki T
    • Journal Title

      Mechanics of Time-Dependent Materials

      Volume: 20 Issue: 2 Pages: 1-14

    • DOI

      10.1007/s11043-016-9292-1

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 有限要素メッシュを利用した画像相関法による不連続変位・ひずみ分布の測定2014

    • Author(s)
      米山聡,小柳 潤,有川秀一
    • Journal Title

      日本複合材料学会誌

      Volume: 40 Pages: 180-188

    • NAID

      130005092630

    • Related Report
      2014 Research-status Report
    • Peer Reviewed
  • [Presentation] Numerical Simulation of Triaxial Woven CFRP under Tensile Loading2016

    • Author(s)
      Jun Koyanagia*, Erina Imaia, Ryo Higuchib, Akinori Yoshimurac, Tomonaga Okabeb, Satoru Yoneyama, and Takahira Aoki
    • Organizer
      17th European Conference on Composite Materials
    • Place of Presentation
      ドイツ,ミュンヘン
    • Year and Date
      2016-06-26
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] TIME DEPENDENCE OF STRAIN LOCALIZATION OF TRIAXIAL WOVEN CFRP UNDER CREEP LOAD USING DIGITAL IMAGE CORRELATION METHOD (DIC)2014

    • Author(s)
      Hideo Nagayama, Jun Koyanagi
    • Organizer
      11TH INTERNATIONAL CONFERENCE ON DURABILITY ANALYSIS OF COMPOSITE SYSTEMS
    • Place of Presentation
      東京理科大学
    • Year and Date
      2014-09-15 – 2014-09-17
    • Related Report
      2014 Research-status Report

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Published: 2014-07-25   Modified: 2019-07-29  

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