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Systematization of the theory of plasticity at the micron scale

Research Project

Project/Area Number 19560072
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Materials/Mechanics of materials
Research InstitutionYamagata University

Principal Investigator

KURODA Mitsutoshi  Yamagata University, 大学院・理工学研究科, 教授 (70221950)

Research Collaborator VIGGO Tvergaard  The Technical University of Denmark, DK-2800, Denmark
Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2008: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2007: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords連続体力学 / 結晶塑性 / 連続分布転位論 / 格子欠陥 / 機械材料・材料力学
Research Abstract

マイクロメートル領域における金属材料の機械的性質の寸法依存性を実験により系統的に調査するとともに, 材料物理に基づく塑性理論の構築を目指して研究を行った. 実験研究においては,板厚の異なる純アルミニウム箔材を用いて, 引張・曲げ試験を行った. 引張試験では板厚減少につれて降伏応力のみが上昇するが, ひずみ勾配を伴う曲げ試験では降伏応力とひずみ硬化係数とが共に上昇することを確認した. 高次ひずみ勾配効果を考慮した結晶塑性理論を整備し, 数値解析により現象の再現を試みた.

Report

(3 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • Research Products

    (15 results)

All 2009 2008 2007 Other

All Journal Article (4 results) (of which Peer Reviewed: 4 results) Presentation (9 results) Remarks (2 results)

  • [Journal Article] Tensile and microbend tests of pure aluminum foils with different thicknesses2009

    • Author(s)
      K. Suzuki, Y. Matsuki, K. Masaki, M. Sato, M. Kuroda
    • Journal Title

      Materials Science and Engineering A Vol.513-514

      Pages: 77-82

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Tensile and microbend tests of pure aluminum foils with different thicknesses2009

    • Author(s)
      K. Suzuki, Y. Matsuki, K. Masaki, M. Sato, M. Kuroda
    • Journal Title

      Materials Science and Engineering A

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A finite deformation theory of higher-order gradient crystal plasticity2008

    • Author(s)
      Kuroda, M., Tvergaard, V
    • Journal Title

      Journal of the Mechanics and Physics of Solids Vol.56

      Pages: 2573-2584

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] A finite deformation theory of higher-order gradient crystal plasticity2008

    • Author(s)
      Kuroda, M., Tvergaard, V.
    • Journal Title

      Journal of the Mechanics and Physics of Solids Vol.56(未定)(2008.4.1Web公開開始)

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Presentation] Size effects in single crystal thin foils2009

    • Author(s)
      M. Kuroda, M. Sato, Y. Matsuki
    • Organizer
      The 15^<th> International Symposium on Plasticity & Its Current Applications -Plasticity2009-
    • Place of Presentation
      St.Thomas,U.S.Virgin Islands
    • Year and Date
      2009-01-07
    • Related Report
      2008 Final Research Report
  • [Presentation] Size effects in single crystal thin foils2009

    • Author(s)
      M. Kuroda, M. Sato, Y. Matsuki
    • Organizer
      The 15^<th> International Symposium on Plasticity & Its Current Applications -Plasticity 2009-
    • Place of Presentation
      St. Thomas, U.S. Virgin Islands
    • Year and Date
      2009-01-07
    • Related Report
      2008 Annual Research Report
  • [Presentation] 単軸引張を受ける純アルミニウム箔の降伏挙動に及ぼす箔厚の影響2008

    • Author(s)
      佐藤真澄・黒田充紀
    • Organizer
      日本機械学会第21回計算力学講演会
    • Place of Presentation
      琉球大学(那覇市)
    • Year and Date
      2008-11-03
    • Related Report
      2008 Final Research Report
  • [Presentation] 曲げ変形を受ける純アルミニウム箔の降伏挙動に及ぼす箔厚の影響2008

    • Author(s)
      松木祐平・黒田充紀
    • Organizer
      日本機械学会第21回計算力学講演会
    • Place of Presentation
      琉球大学(那覇市)
    • Year and Date
      2008-11-03
    • Related Report
      2008 Final Research Report
  • [Presentation] 単軸引張を受ける純アルミニウム箔の降伏挙動に及ぼす箔厚の影響2008

    • Author(s)
      佐藤真澄・黒田充紀
    • Organizer
      日本機械学会第21回計算力学講演会
    • Place of Presentation
      琉球大学
    • Year and Date
      2008-11-03
    • Related Report
      2008 Annual Research Report
  • [Presentation] 曲げ変形を受ける純アルミニウム箔の降伏挙動に及ぼす箔厚の影響2008

    • Author(s)
      松木祐平・黒田充紀
    • Organizer
      日本機械学会第21回計算力学講演会
    • Place of Presentation
      琉球大学
    • Year and Date
      2008-11-03
    • Related Report
      2008 Annual Research Report
  • [Presentation] 単軸引張りにおける多結晶材料金属薄膜強度の寸法依存性2007

    • Author(s)
      鈴木克哉・松木祐平・黒田充紀
    • Organizer
      日本機械学会第20回計算力学講演会
    • Place of Presentation
      同志社大学(京田辺市)
    • Year and Date
      2007-11-28
    • Related Report
      2008 Final Research Report 2007 Annual Research Report
  • [Presentation] 曲げ変形における多結晶金属薄膜強度の寸法依存性2007

    • Author(s)
      松木祐平・鈴木克哉・黒田充紀
    • Organizer
      日本機械学会第20回計算力学講演会
    • Place of Presentation
      同志社大学(京田辺市)
    • Year and Date
      2007-11-28
    • Related Report
      2008 Final Research Report 2007 Annual Research Report
  • [Presentation] 高次ひずみ勾配結晶塑性モデルによる多結晶薄膜の力学挙動解析2007

    • Author(s)
      正木幸一・黒田充紀
    • Organizer
      日本機械学会第20回計算力学講演会
    • Place of Presentation
      同志社大学(京田辺市)
    • Year and Date
      2007-11-28
    • Related Report
      2008 Final Research Report 2007 Annual Research Report
  • [Remarks] 山形大学大学院理工学研究科計算固体力学研究室(黒田研究室)

    • URL

      http://kuroda.yz.yamagata-u.ac.jp/sub10.html

    • Related Report
      2008 Annual Research Report
  • [Remarks] 山形大学理工学研究科 計算固体力学研究室(黒田研究室)

    • URL

      http://kuroda.yz.yamagata-u.ac.jp/sub10.html

    • Related Report
      2007 Annual Research Report

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Published: 2007-04-01   Modified: 2016-04-21  

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