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Stochastic homogenization for uncertainty quantification in multiscale analysis

Research Project

Project/Area Number 16KT0129
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section特設分野
Research Field Mathematical Sciences in Search of New Cooperation
Research InstitutionHokkaido University

Principal Investigator

Masamune Jun  北海道大学, 理学研究院, 教授 (50706538)

Co-Investigator(Kenkyū-buntansha) 寺田 賢二郎  東北大学, 災害科学国際研究所, 教授 (40282678)
平山 紀夫  日本大学, 生産工学部, 教授 (70582518)
Project Period (FY) 2016-07-19 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2017: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2016: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords均質化法 / コンパクト性理論 / CFRP / マルチスケール静的強度解析 / コンパクト性理論 / マルチスケール静的強度解 析 / エネルギー収束 / 時空間マルチスケール理論 / 複合材料
Outline of Final Research Achievements

We established a homogenization theory, more precisely, the H-convergence theory on general Riemannian manifolds. The main theoretical result in the project was to show a compactness result for a family of diffusion coefficients and that H-convergence implies Mosco convergence. As a consequence, there is a weak converging sequence of Brownian motions provided the tightness. As applications of homogenization theory, we constructed a mathematical model for micro-fibers and analyzed it, and, discussed the results obtain by the averaging methods and homogenization theory. We also studied the Carbon Fiber Reinforced Polymer Composites (CFRP) using the homogenization theory and numerical analysis. In particular, we proposed several new methods to evaluate the strengths of CFRP and conducted tests using numerical methods combined with homogenization theory.

Academic Significance and Societal Importance of the Research Achievements

世界に先駆けて,曲がった空間上の均質化法理論を構築した。人工透析等への広い応用が期待されるマイクロファイバーの束に関する均質化法による数理モデルとその解析を平均化法と均質化法を用いて検討した。等方性がある場合は,これらの二つの手法から得られる結果が無視できる範囲で一致することが確認された。航空宇宙産業のみならず,自動車産業等でも本格的な適用が始まり,今後急速な普及が見込まれるCFRPの静的強度のばらつきを評価し,データマイニングによる支配的なばらつき因子の特定を行った。さらに,繊維配置の不均一性に起因するマクロな破壊強度のばらつきについても調査を行った。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (17 results)

All 2019 2018 2017 Other

All Int'l Joint Research (4 results) Journal Article (3 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (8 results) (of which Int'l Joint Research: 3 results,  Invited: 7 results) Funded Workshop (2 results)

  • [Int'l Joint Research] Dresden technical university(ドイツ)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] TU Dresden(Germany)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] ドレスデン工科大学(ドイツ)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] ローマ大学(イタリア)

    • Related Report
      2016 Research-status Report
  • [Journal Article] Determination of macroscopic viscoelastic properties as well as macroscopic thermal deformation and cure-shrinkage properties of fiber reinforced plastics in consideration of cure process2019

    • Author(s)
      齋藤理沙, 山口裕矢, 森口周二, 三原康子, 小林卓哉, 寺田賢二郎
    • Journal Title

      Transactions of the JSME (in Japanese)

      Volume: 85 Issue: 870 Pages: 18-00396-18-00396

    • DOI

      10.1299/transjsme.18-00396

    • NAID

      130007604141

    • ISSN
      2187-9761
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Isogeometric homogenization analysis of dry woven fabrics involving micro-scale frictional contact2018

    • Author(s)
      西紳之介, 寺田賢二郎, Iiker Temizer
    • Journal Title

      Transactions of the JSME (in Japanese)

      Volume: 84 Issue: 859 Pages: 17-00554-17-00554

    • DOI

      10.1299/transjsme.17-00554

    • NAID

      130006549743

    • ISSN
      2187-9761
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Endothelial monolayer permeability under controlled oxygen tension2017

    • Author(s)
      Funamoto, K; Yoshino, D; Matsubara, K; Zervantonakis, I; Funamoto, K; Nakayama, M; Masamune, J; Kimura, J; Roger, K
    • Journal Title

      Integrative Biology

      Volume: 6 Issue: 6 Pages: 529-538

    • DOI

      10.1039/c7ib00068e

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] H-compactness of elliptic operators on weighted Riemannian Manifolds2019

    • Author(s)
      Jun Masamune
    • Organizer
      CUNY Geometric Analysis Seminar
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 数値材料試験による一方向強化CFRPの破壊強度の予測2019

    • Author(s)
      鷹見凌,平山紀夫,田口尚輝,山本晃司,石橋慶輝,寺田賢二郎
    • Organizer
      日本機械学会 関東学生会第58回学生員卒業研究発表講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 繊維強化複合材料のミクロ構造に対するアイソジオメトリック接触・摩擦解析と時空間均質化2018

    • Author(s)
      寺田賢二郎
    • Organizer
      第21 回応用力学シンポジウム
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] データマイニングによるCFRP静的強度ばらつきの抑制手法について2018

    • Author(s)
      石橋慶輝、寺田賢二郎、平山紀夫、山本晃司、小谷拓磨、森口周二、新宅勇一
    • Organizer
      第23回計算工学講演会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Characterization of Macroscopic Mechanical Behavior of Dry Woven-fabrics in Consideration of Mesoscopic Frictional-contact between Fiber Bundles2018

    • Author(s)
      Kenjiro Terada, Shinnosuke Nishi, Ilker Temizer
    • Organizer
      The 13th World Congress in Computational Mechanics
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] H-convergence on Riemannian manifolds2017

    • Author(s)
      Masamune, J
    • Organizer
      Analysis and Geometry on Graphs and Manifolds
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] H-convergence on Riemannian manifolds2017

    • Author(s)
      Masamune, J
    • Organizer
      Kansai Probability seminaar
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] H-convergence on Riemannian manifolds2017

    • Author(s)
      正宗淳
    • Organizer
      Probability Seminar
    • Place of Presentation
      関西大学(大阪府・吹田市)
    • Related Report
      2016 Research-status Report
    • Invited
  • [Funded Workshop] The homogenization method for topology optimization of structures: old and new2018

    • Related Report
      2018 Annual Research Report
  • [Funded Workshop] Stochastic homogenization and its applications2017

    • Place of Presentation
      東北大学(宮城県・仙台市)
    • Year and Date
      2017-02-06
    • Related Report
      2016 Research-status Report

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Published: 2016-07-20   Modified: 2023-03-08  

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