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Elucidation of surface pattern transformation by nonlinear perturbation analysis

Research Project

Project/Area Number 22K18284
Research Category

Grant-in-Aid for Challenging Research (Pioneering)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 18:Mechanics of materials, production engineering, design engineering, and related fields
Research InstitutionNagoya University

Principal Investigator

Okumura Dai  名古屋大学, 工学研究科, 教授 (70362283)

Co-Investigator(Kenkyū-buntansha) 永島 壮  名古屋大学, 工学研究科, 准教授 (80800317)
松原 成志朗  名古屋大学, 工学研究科, 助教 (40823638)
Project Period (FY) 2022-06-30 – 2025-03-31
Project Status Completed (Fiscal Year 2024)
Budget Amount *help
¥25,740,000 (Direct Cost: ¥19,800,000、Indirect Cost: ¥5,940,000)
Fiscal Year 2024: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2022: ¥17,160,000 (Direct Cost: ¥13,200,000、Indirect Cost: ¥3,960,000)
Keywords固体力学 / 材料力学 / 分岐座屈 / ゲル / 高分子合成 / 不安定変形 / パターン変態 / 形態制御 / 表面形態制御 / 表面不安定 / ソフトマテリアル
Outline of Research at the Start

以下のように研究項目①~④を設定し研究目的を遂行する.
研究項目① 摂動解析の動的非線形化による孤立クリースの基礎的解析
研究項目② クリース解析におけるメッシュ依存性の制御方法の解析基盤構築
研究項目③ プレパターンを用いた3次元凸凹パターン変態の評価・観察手法構築
研究項目④ 凸凹パターン変態の全貌解明と検証実験

Outline of Final Research Achievements

This research focuses on elucidating the mechanism of surface pattern transformations induced by dynamic nonlinear perturbation analysis. The obtained results can be summarized as follows: 1. Clarification of the mechanism of wrinkle-crease transformation. 2. Influence of surface tension on wrinkle-crease transformation. 3. Analysis of influential factors in wrinkle-crease transformation using the I2 strain invariant and the Gent-Gent model. 4. Analysis of influential factors in wrinkle-fold transformation driven by droplets on a bilayer surface. 5. Influence of fiber structures embedded in the substrate of bilayer systems on pattern transformations.

Academic Significance and Societal Importance of the Research Achievements

表面不安定はハードマテリアルにとっては回避事項であるが、ソフトマテリアルにとっては高性能な機能性の発現と関わっている。本研究では、これまで発生機構が明らかではなかった尖り点を有するクリースという表面不安定に対して摂動解析を動的非線形化することによってリンクルと呼ばれる既知の表面不安定現象からの繋がりを明らかにした。リンクルとクリースの間の変形経路が明らかになったことで、今後、クリースを制御するための研究や工学応用が新しく発展することが期待される。

Report

(5 results)
  • 2024 Annual Research Report   Final Research Report ( PDF )
  • 2023 Research-status Report
  • 2022 Comments on the Screening Results   Research-status Report
  • Research Products

    (40 results)

All 2024 2023 2022 Other

All Journal Article (10 results) (of which Peer Reviewed: 10 results,  Open Access: 5 results) Presentation (23 results) (of which Int'l Joint Research: 9 results,  Invited: 6 results) Remarks (7 results)

  • [Journal Article] Deformation in the wrinkle-crease transformation2024

    • Author(s)
      Ishida Tatsuya、Matsubara Seishiro、Nagashima So、Okumura Dai
    • Journal Title

      International Journal of Solids and Structures

      Volume: 298 Pages: 112876-112876

    • DOI

      10.1016/j.ijsolstr.2024.112876

    • Related Report
      2024 Annual Research Report 2023 Research-status Report
    • Peer Reviewed
  • [Journal Article] Crease instability in Gent-Gent hyperelastic materials2024

    • Author(s)
      Matsubara Seishiro、Kobayashi Keijiro、Ishida Tatsuya、Nagashima So、Okumura Dai
    • Journal Title

      International Journal of Mechanical Sciences

      Volume: 280 Pages: 109549-109549

    • DOI

      10.1016/j.ijmecsci.2024.109549

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Inhomogeneous instability patterns in polyacrylamide hydrogel bilayers2024

    • Author(s)
      NAGASHIMA So、UCHIYAMA Wataru、HAYASHI Shunsuke、MATSUBARA Seishiro、OKUMURA Dai
    • Journal Title

      Mechanical Engineering Journal

      Volume: 11 Issue: 6 Pages: 24-00350-24-00350

    • DOI

      10.1299/mej.24-00350

    • ISSN
      2187-9745
    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 水フィラメントに駆動されるリンクル・フォールド変態の数値解析2024

    • Author(s)
      太田陸斗,永島壮,松原成志朗,奥村大
    • Journal Title

      計算数理工学論文集

      Volume: 24 Pages: 05-241213

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed
  • [Journal Article] クリースの形成に及ぼすひずみ第二不変量の影響2024

    • Author(s)
      岡村太暉,松原成志朗,永島壮,奥村大
    • Journal Title

      計算数理工学論文集

      Volume: 24 Pages: 06-241213

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Computational and physical aspects for the occurrence of crease in an elastomer under general loading conditions2024

    • Author(s)
      Matsubara, S., Ogino, A., Nagashima, S., Okumura, D.
    • Journal Title

      International Journal of Solids and Structures

      Volume: 288 Pages: 112610-112610

    • DOI

      10.1016/j.ijsolstr.2023.112610

    • Related Report
      2023 Research-status Report
    • Peer Reviewed
  • [Journal Article] クリースの発達過程に対する影響因子の調査2023

    • Author(s)
      石田竜也, 永島壮, 松原成志朗, 奥村大
    • Journal Title

      計算数理工学論文集

      Volume: 23 Pages: 143-148

    • Related Report
      2023 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Self-Wrinkling in Polyacrylamide Hydrogel Bilayers2023

    • Author(s)
      S. Nagashima, N. Akamatsu, X. Cheng, S. Matsubara, S. Ida, H. Tanaka, M. Uchida, D. Okumura
    • Journal Title

      Langmuir

      Volume: 39 Issue: 11 Pages: 3942-3950

    • DOI

      10.1021/acs.langmuir.2c03264

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] TIME-SWELLING SUPERPOSITION PRINCIPLE FOR THE LINEAR VISCOELASTIC PROPERTIES OF POLYACRYLAMIDE HYDROGELS2023

    • Author(s)
      S. Matsubara, A. Takashima, S. Nagashima, S. Ida, H. Tanaka, M. Uchida, D. Okumura
    • Journal Title

      Advanced Structured Materials

      Volume: accepted

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] リッジパターン変態のプレストレッチ依存性と分岐座屈特性2022

    • Author(s)
      田中大地, 若林駿人, 松原成志朗, 永島壮, 奥村大
    • Journal Title

      計算数理工学論文集

      Volume: 22 Pages: 117-121

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Bifurcation and Deformation of Surface Instability2024

    • Author(s)
      Okumura, D.
    • Organizer
      The Fifteenth Asia-Pacific Symposium on Engineering Plasticity and Its Applications (AEPA 2024)
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Deformation in the wrinkle-crease transformation of a monolayer system2024

    • Author(s)
      Okumura, D. Ishida, T., Matsubara, S., Nagashima, S.
    • Organizer
      The 4-th International Workshops on Advances in Computational Mechanics (IWACOM-IV)
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] リンクルークリース変態の変形2024

    • Author(s)
      奥村大
    • Organizer
      日本機械学会材料力学部門2024年度第2回ゴムの材料力学に関する研究会
    • Related Report
      2024 Annual Research Report
    • Invited
  • [Presentation] Bifurcations and Deformations of Surface Pattern Evolution2024

    • Author(s)
      奥村大
    • Organizer
      日本材料学会 第73期第3回塑性工学部門委員会(第1回塑性力学分科会)
    • Related Report
      2024 Annual Research Report
    • Invited
  • [Presentation] 構造と材料の分岐・座屈・不安定-ハニカム構造の座屈から表面不安定まで-2024

    • Author(s)
      奥村大
    • Organizer
      第2回軽金属学会「キンク研究部会」
    • Related Report
      2024 Annual Research Report
    • Invited
  • [Presentation] NUMERICAL ANALYSIS OF WRINKLE-TO-FOLD TRANSITIONS INDUCED BY WATER SURFCE TENSION2024

    • Author(s)
      Ohta, R., Nagashima, S., Matsubara, S., Okumura, D.
    • Organizer
      The 26th International Conference of the Theoretical and Applied Mechanics(ICTAM2024)
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Folding of a Thin Film on a Fiber-Incorporated Soft Substrate2024

    • Author(s)
      Hayashi, S., Nagashima, S., Solhtalab, A., Matsubara, S., Razavi, M.J., Okumura, D.
    • Organizer
      IUTAM Symposium on Mechanics of Soft Materials and Soft Robots
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Wrinkle-to-Crease Transformation on Unstable Deformation Path2023

    • Author(s)
      Okumura, D., Ishida, T., Matsubara, S., Nagashima, S.
    • Organizer
      ASME 2023 International Mechanical Engineering Congress and Exposition (IMECE2023)
    • Related Report
      2023 Research-status Report
    • Int'l Joint Research
  • [Presentation] Effects of surface tension on crease nucleation and evolution in an elastomer subjected to uniaxial, plane strain, and equibiaxial compressions2023

    • Author(s)
      Okumura, D., Ogino, A., Matsubara, S., Nagashima, S.
    • Organizer
      IUTAM Symposium Creep in Structures
    • Related Report
      2023 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Study on the effects of mesh resolution and surface tension on the occurrence of crease in an elastomer2023

    • Author(s)
      Matsubara, S., Ogino, A., Nagashima, S., Okumura, D.
    • Organizer
      The 7th Asia-Pacific International Conference on Computational Methods in Engineering (ICOME2023) & The 13th Chinese National Conference on Computational Methods in Engineering
    • Related Report
      2023 Research-status Report
    • Int'l Joint Research
  • [Presentation] Deformation in wrinkle-to-crease transformation2023

    • Author(s)
      Ishida, T., Matsubara, S., Nagashima, S., Okumura, D.
    • Organizer
      The 7th Asia-Pacific International Conference on Computational Methods in Engineering (ICOME2023) & The 13th Chinese National Conference on Computational Methods in Engineering
    • Related Report
      2023 Research-status Report
    • Int'l Joint Research
  • [Presentation] リッジパターンの発現に至る第二分岐特性2023

    • Author(s)
      奥村大,太田陸斗,松原成志朗,永島壮
    • Organizer
      日本機械学会 M&M2023材料力学カンファレンス
    • Related Report
      2023 Research-status Report
  • [Presentation] 異方濡れ特性を有する階層凹凸パターンのボトムアップ形成2023

    • Author(s)
      永島壮,鈴木航,松原成志朗,奥村大
    • Organizer
      日本機械学会 M&M2023材料力学カンファレンス
    • Related Report
      2023 Research-status Report
  • [Presentation] 重合促進剤によるゲル化誘起パターンの制御2023

    • Author(s)
      程相輔,永島壮,松原成志朗,奥村大
    • Organizer
      日本機械学会 M&M2023材料力学カンファレンス
    • Related Report
      2023 Research-status Report
  • [Presentation] 水の表面張力によるリンクルーフォールド変態の数値解析2023

    • Author(s)
      太田陸斗,永島壮,松原成志朗,奥村大
    • Organizer
      日本機械学会計算力学講演会
    • Related Report
      2023 Research-status Report
  • [Presentation] 膨潤エラストマーに対する高分子鎖の伸び切り効果を考慮した溶媒拡散・変形連成解析2023

    • Author(s)
      松原成志朗,永島壮,奥村大
    • Organizer
      日本機械学会計算力学講演会
    • Related Report
      2023 Research-status Report
  • [Presentation] クリースのスケール・メッシュ依存性に及ぼす負荷条件の影響2022

    • Author(s)
      荻野敦也,松原成志朗,永島 壮,奥村 大
    • Organizer
      日本機械学会第35回計算力学講演会(CMD2022)
    • Related Report
      2022 Research-status Report
  • [Presentation] ソフトマテリアルの表面不安定に及ぼす底面の影響2022

    • Author(s)
      中島大貴,松原成志朗,永島 壮,奥村 大
    • Organizer
      日本機械学会第35回計算力学講演会(CMD2022)
    • Related Report
      2022 Research-status Report
  • [Presentation] リンクルからクリースへの変態制御のための非線形有限要素解析2022

    • Author(s)
      石田竜也,荻野敦也,松原成志朗,永島 壮,奥村 大
    • Organizer
      日本機械学会最適化シンポジウム2022(OPTIS2022)
    • Related Report
      2022 Research-status Report
  • [Presentation] チューブ内壁に生じるクリースの伝播及び間隔の制御2022

    • Author(s)
      神 圭佑,松原成志朗,永島 壮,奥村 大
    • Organizer
      日本機械学会最適化シンポジウム2022(OPTIS2022)
    • Related Report
      2022 Research-status Report
  • [Presentation] 切り欠きから伝播するクリースの周期間隔2022

    • Author(s)
      奥村 大,星 亮吾,中島大貴,松原成志朗,永島 壮
    • Organizer
      日本機械学会M&M2022材料力学カンファレンス
    • Related Report
      2022 Research-status Report
  • [Presentation] ハイドロゲルの線形粘弾性特性評価のための時間・膨潤重ね合わせの原理2022

    • Author(s)
      松原成志朗,高島 晃,永島 壮,伊田翔平,田中 展,内田 真,奥村 大
    • Organizer
      日本機械学会M&M2022材料力学カンファレンス
    • Related Report
      2022 Research-status Report
  • [Presentation] Crease Nucleation and Propagation from a V-shaped Notch in an Elastomer2022

    • Author(s)
      D. Nakajima, R. Hoshi, S. Matsubara, S. Nagashima, D. Okumura
    • Organizer
      15th World Congress on Computational Mechanics (WCCM-XV)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Remarks] 大学ホームページ

    • URL

      https://www.mech.nagoya-u.ac.jp/mml/

    • Related Report
      2024 Annual Research Report 2023 Research-status Report 2022 Research-status Report
  • [Remarks] Google Scholar

    • URL

      https://scholar.google.com/citations?user=uY5i9UkAAAAJ&hl=en

    • Related Report
      2024 Annual Research Report 2023 Research-status Report
  • [Remarks] Research Gate

    • URL

      https://www.researchgate.net/profile/Dai-Okumura

    • Related Report
      2024 Annual Research Report 2023 Research-status Report
  • [Remarks] ORCID

    • URL

      https://orcid.org/0000-0002-4020-8258

    • Related Report
      2024 Annual Research Report 2023 Research-status Report 2022 Research-status Report
  • [Remarks] Web of Science

    • URL

      https://www.webofscience.com/wos/author/record/2271990

    • Related Report
      2024 Annual Research Report 2023 Research-status Report
  • [Remarks] GoogleScholar

    • URL

      https://scholar.google.com/citations?user=uY5i9UkAAAAJ&hl=en

    • Related Report
      2022 Research-status Report
  • [Remarks] ResearchGate

    • URL

      https://www.researchgate.net/profile/Dai-Okumura

    • Related Report
      2022 Research-status Report

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Published: 2022-07-05   Modified: 2026-01-16  

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