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Development of flexible sports protectors hardening under high speed deformation based on impact biomechanics

Research Project

Project/Area Number 26420010
Research Category

Grant-in-Aid for Scientific Research (C)

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

Principal Investigator

Higuchi Masahiro  金沢大学, 機械工学系, 准教授 (50455185)

Co-Investigator(Kenkyū-buntansha) 宮崎 祐介  東京工業大学, 工学院, 准教授 (70432135)
立矢 宏  金沢大学, 機械工学系, 教授 (10216989)
Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Keywords衝撃工学 / 高分子材料 / エポキシ樹脂 / 緩和弾性率 / 時間依存性 / ひずみ速度依存性 / 生体工学
Outline of Final Research Achievements

In the present study, we develop a flexible sports protector whose outer shell hardens only under impact due. First, a bisphenol A-type epoxide resin with amine-based curing agent is selected as an outer shell for the proposed protector. The strain rate effect of compressive property were controlled by change the compound ratio of the main and curing agents, and the relation between the relaxation modulus and the compound ratio was clarified by the dynamic viscoelasticity measurements. Next, based on the time dependency of the modulus, a prototype of the flexible sports protector was produced. Experiments on the flexibility and impact absorption characteristic of the protector were conducted, and the results suggested the advantages of the proposed protector.

Report

(4 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • 2014 Research-status Report
  • Research Products

    (10 results)

All 2016 2015 2014

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (9 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Numerical Evaluation on Impact Behavior of Functionally Graded Foam Materials2015

    • Author(s)
      樋口理宏,坂拓磨, 足立忠晴, 名木野晴暢
    • Journal Title

      Journal of the Society of Materials Science, Japan

      Volume: 64 Issue: 10 Pages: 798-805

    • DOI

      10.2472/jsms.64.798

    • NAID

      130005104070

    • ISSN
      0514-5163, 1880-7488
    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Masahiro Higuchi, Atsuto Oba Toshiaki Matsui, Takahiko Nakamoto, Hiroshi Tachiya2016

    • Author(s)
      Development of Flexible Protector Hardening under Impact
    • Organizer
      Asia-Pacific Conference onFracture and Strength 2016
    • Place of Presentation
      富山国際会議場(富山市)
    • Year and Date
      2016-09-19
    • Related Report
      2016 Annual Research Report
  • [Presentation] 弾性率の時間依存性に基づくサッカー用シンガードの開発2016

    • Author(s)
      樋口理宏,中本貴彦,松井俊晃,立矢宏
    • Organizer
      日本実験力学会2016年次講演会
    • Place of Presentation
      近畿大学東大阪キャンパス(東大阪市)
    • Year and Date
      2016-09-01
    • Related Report
      2016 Annual Research Report
  • [Presentation] 弾性率の時間依存性に基づく柔軟性スポーツ用プロテクターの開発2016

    • Author(s)
      松井俊晃,樋口理宏,大葉篤人,中本貴彦,立矢宏
    • Organizer
      日本材料学会第65期通常総会・学術講演会
    • Place of Presentation
      富山大学(富山市)
    • Year and Date
      2016-05-28
    • Related Report
      2016 Annual Research Report
  • [Presentation] 弾性率の時間依存性を利用した柔軟性保護具の開発2015

    • Author(s)
      樋口理宏,大葉篤人,松井俊晃,立矢宏,足立忠晴
    • Organizer
      日本機械学会M&M2015材料力学カンファレンス
    • Place of Presentation
      慶応大学
    • Year and Date
      2015-11-22
    • Related Report
      2015 Research-status Report
  • [Presentation] Time Dependent Elastic Modulus of Soft Epoxy Resins for Flexible Protector2015

    • Author(s)
      A. Oba, M. Higuchi, T. Matsui, H. Tachiya, T. Adachi
    • Organizer
      ATEM’15, JSME-MMD
    • Place of Presentation
      豊橋市
    • Year and Date
      2015-10-08
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] 軟質エポキシ樹脂の弾性率の時間依存性評価2015

    • Author(s)
      樋口理宏,大葉篤人,松井俊晃,立矢宏,足立忠晴
    • Organizer
      日本材料学会第64期通常総会・学術講演会
    • Place of Presentation
      山形大学
    • Year and Date
      2015-05-23
    • Related Report
      2015 Research-status Report
  • [Presentation] スポーツ用プロテクターのための軟質エポキシ樹脂の衝撃特性評価2014

    • Author(s)
      樋口理宏,大葉篤人,丹保卓,立矢宏,足立忠晴
    • Organizer
      第11回材料の衝撃問題シンポジウム
    • Place of Presentation
      豊橋技術科学大学
    • Year and Date
      2014-11-30
    • Related Report
      2014 Research-status Report
  • [Presentation] Mechanical behavior of soft epoxy resin for flexible protector2014

    • Author(s)
      Atsuto Oba, Masahiro Higuchi, Suguru Tambo, Hiroshi Tachiya, Tadaharu Adachi
    • Organizer
      ACMFMS 2014
    • Place of Presentation
      奈良県 新公会堂
    • Year and Date
      2014-10-11
    • Related Report
      2014 Research-status Report
  • [Presentation] 柔軟性保護具のための軟質エポキシ樹脂の機械的特性2014

    • Author(s)
      樋口理宏,大葉篤人,丹保卓,立矢宏,足立忠晴
    • Organizer
      日本機械学会 M&M2014材料力学カンファレンス
    • Place of Presentation
      福島大学
    • Year and Date
      2014-07-20
    • Related Report
      2014 Research-status Report

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Published: 2014-04-04   Modified: 2018-03-22  

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