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Development of Soft and wet Indentation Concept

Research Project

Project/Area Number 26630011
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Materials/Mechanics of materials
Research InstitutionOsaka University

Principal Investigator

Shibutani Yoji  大阪大学, 工学(系)研究科(研究院), 教授 (70206150)

Co-Investigator(Kenkyū-buntansha) MATSUNAKA Daisuke  信州大学, 工学部, 准教授 (60403151)
Project Period (FY) 2014-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywordsナノインデンテーション / 表面吸着 / 接触力学 / ソフトマター
Outline of Final Research Achievements

This research is concerning to the adsorption behavior observed in the physical contact with the soft and wet matters. There are two major theories on this mechanics proposed by Johnson, Kendall and Roberts in 1971 and by Dejaguin, Muller and Toporov in 1975. The present results give the findings about the similarity of both theories and also about the problems for the practical applications. These conclusions contribute to develop the revised model to the contact with adsorption. We have also done the indentation to the human wet teeth with the heterogeneous harder and softer regions. The new technique for solidification of such a wet sample was proposed and the local mechanical properties of the teeth can be successfully obtained by indentation with the much smaller unevenness.

Report

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

    (7 results)

All 2015 2014 Other

All Presentation (4 results) (of which Invited: 1 results) Remarks (3 results)

  • [Presentation] ナノインデンテーションによる局所的な材料強度・特性評価2015

    • Author(s)
      渋谷陽二
    • Organizer
      日本機械学会関西支部第339回講習会
    • Place of Presentation
      日本機械学会関西支部(大阪府,大阪市)
    • Year and Date
      2015-10-30
    • Related Report
      2015 Annual Research Report
  • [Presentation] インデンテーションにおける凝着接触の効果に関する理論的考察2015

    • Author(s)
      松中大介,渋谷陽二,田中展
    • Organizer
      日本機械学会第28回計算力学講演会
    • Place of Presentation
      横浜国立大学(神奈川県,横浜市)
    • Year and Date
      2015-10-10
    • Related Report
      2015 Annual Research Report
  • [Presentation] ナノインデンテーションにおける象牙質コラーゲン繊維の物性評価2015

    • Author(s)
      久保美寿穂,三浦治郎,松中大介,田中展,竹重文雄,渋谷陽二
    • Organizer
      日本真空学会機能薄膜部会ナノ・キャラクタリゼーション専門部会
    • Place of Presentation
      東陽テクニカ本社(東京都,中央区)
    • Year and Date
      2015-09-24
    • Related Report
      2015 Annual Research Report
  • [Presentation] ナノインデンテーションを用いた時間に依存した力学特性と力学的サイズ効果2014

    • Author(s)
      渋谷陽二
    • Organizer
      日本真空学会・機能薄膜部会
    • Place of Presentation
      オミクロンテクノロジー・ジャパン(株)
    • Year and Date
      2014-10-29
    • Related Report
      2014 Research-status Report
    • Invited
  • [Remarks] 渋谷・垂水・奥村研究室

    • URL

      http://www-comec.mech.eng.osaka-u.ac.jp/

    • Related Report
      2015 Annual Research Report
  • [Remarks] アトミックデザイン研究センター

    • URL

      http://www.camt.eng.osaka-u.ac.jp/index.html

    • Related Report
      2015 Annual Research Report 2014 Research-status Report
  • [Remarks] 渋谷・垂水研究室

    • URL

      http://www-comec.mech.eng.osaka-u.ac.jp/

    • Related Report
      2014 Research-status Report

URL: 

Published: 2014-04-04   Modified: 2017-05-10  

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