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2011 Fiscal Year Final Research Report

Studies on wetting and fracture based on the spirit of impressionistic physics

Research Project

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Project/Area Number 20340110
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Biophysics/Chemical physics
Research InstitutionOchanomizu University

Principal Investigator

OKUMURA Ko  お茶の水女子大学, 大学院・人間文化創成科学研究科, 教授 (80271500)

Project Period (FY) 2008 – 2011
Keywordsソフトマター物理学 / 印象派物理学 / 濡れ / 表面張力 / 破壊力学 / 複合材料
Research Abstract

Professor de Gennes, who received the Nobel Prize in Physics in1991, studied a wide variety of problems, with a unique method in which he neglected many details, to reveal simple physical essences from them. He compared this method to impressionist paintings and emphasized the importance of such method in physics. In this research, with this method, we studied some wetting or capillarity problems such as the dynamics of two-dimensional bubbles and the toughness of structured materials such as soft-foam solids (shock absorbing materials), together with the dynamics of granular materials. We aimed at feeding back our results to related fields, chemical industries and research & development teams by providing simple and intuitive physical understandings. Part of these results have been introduced in details to the public through articles in newspapers and a magazine for kids.

  • Research Products

    (30 results)

All 2011 2010 2009 2008 Other

All Journal Article (11 results) (of which Peer Reviewed: 9 results) Presentation (12 results) Remarks (7 results)

  • [Journal Article] Viscous drag riction acting on a fluid drop confined in between two plates2011

    • Author(s)
      Ayako ERI and Ko OKUMURA
    • Journal Title

      Soft Matter

      Volume: 7 Pages: 5648

    • DOI

      DOI:10.1039/c0sm01535k

    • Peer Reviewed
  • [Journal Article] Dimensional crossover in the coalescence dynamics of viscous drops confined in between two plates2011

    • Author(s)
      Maria YOKOTA and Ko OKUMURA
    • Journal Title

      Proc. Nat. Acad. Sci. (USA)

      Volume: 108 Pages: 6395-6398

    • DOI

      doi:10.1073/pnas.1017112108

    • Peer Reviewed
  • [Journal Article] 表面・界面の印象派物理学:スーパー理系女子たちが開きつつある新しい物理学の地平2011

    • Author(s)
      奥村剛
    • Journal Title

      応用物理学会有機分子・バイオエレクトロニクス分科会会誌

      Volume: vel.22 Pages: 153

  • [Journal Article] 新著紹介(P. Oswald, Rheophysics; The Deformation and Flow of Matter, Cambridge Univ. Press, Cambridge, 20092011

    • Author(s)
      奥村剛
    • Journal Title

      日本物理学会誌

      Volume: 66 Pages: 223

  • [Journal Article] High velocity drag friction in dense granular media2010

    • Author(s)
      Yuka TAKEHARA, Sachika FUJIMOTO and Ko OKUMURA
    • Journal Title

      EPL (Europhys. Lett.)

      Volume: 92 Pages: 44003

    • DOI

      doi:10.1209/0295-5075/92/44003.

    • Peer Reviewed
  • [Journal Article] Bursting of a thin film in a confined geometry: Rimless and constant-velocity dewetting2010

    • Author(s)
      Ayako ERI and Ko OKUMURA
    • Journal Title

      Phys. Rev. E Rapid Communication

      Volume: 82 Pages: 030601

    • DOI

      DOI:10.1103/PhysRevE.82.030601.

    • Peer Reviewed
  • [Journal Article] A simple model for the mechanics of spider webs2010

    • Author(s)
      Yuko AOYANAGI and Ko OKUMURA
    • Journal Title

      Phys. Rev. Lett

      Volume: 104 Pages: 038102

    • DOI

      DOI:10.1103/PhysRevLett.104.038102

    • Peer Reviewed
  • [Journal Article] 天然物質の強靭性:硬・柔の組み合わせの妙-真珠層とクモの巣を例として2010

    • Author(s)
      奥村剛
    • Journal Title

      日本物理学会誌

      Volume: 66 Pages: 97-105

    • Peer Reviewed
  • [Journal Article] 固体表面テクスチャによるぬれの制御2010

    • Author(s)
      奥村剛
    • Journal Title

      トライボロジスト

      Volume: 55 Pages: 242-247

    • Peer Reviewed
  • [Journal Article] Stress and displacement around a crack in layered network systems mimicking nacre2009

    • Author(s)
      Yuko AOYANAGI and Ko OKUMURA
    • Journal Title

      Phys. Rev. E

      Volume: 79 Pages: 066108

    • DOI

      DOI:10.1103/PhysRevE.79.066108.

    • Peer Reviewed
  • [Journal Article] Analytical solution to a fracture problem in a tough layered structure2008

    • Author(s)
      Yukari Hamamoto and Ko OKUMURA
    • Journal Title

      Phys. Rev. E

      Volume: 78 Pages: 026118-1-5

    • DOI

      DOI:10.1103/PhysRevE.78.026118.

    • Peer Reviewed
  • [Presentation] Capability of Impressionist Physics in Materials Science:Liquid Drops2011

    • Author(s)
      Invited Talk, Ko OKUMURA
    • Organizer
      Spider Webs and Nacre, The 1st International Symposium on Fusion Materials
    • Place of Presentation
      Toba, Aichi, Japan
    • Year and Date
      20111016-18
  • [Presentation] Wetting on textured surfaces and dynamicsof liquid drops and bubbles2011

    • Author(s)
      Invited Talk, Ko OKUMURA
    • Organizer
      The 3rd Asian Symposium on AdvancedMaterials-Chemistry & Physics of Functional Materials-(ASAM-3)
    • Place of Presentation
      Fukuoka, Japan
    • Year and Date
      20110919-22
  • [Presentation] Toughening materials bycombination of soft and hard elements: examples from nacre to spider webs2011

    • Author(s)
      Invited Lecture, Ko OKUMURA
    • Organizer
      EUROMAT 2011 Congress
    • Place of Presentation
      Montpellier, France
    • Year and Date
      20110912-15
  • [Presentation] 印象派物理学で描きだす身近に潜むシンプルな物理:しずく、あわ、真珠、クモの巣を題材として2011

    • Author(s)
      夏の学校講師,奥村剛
    • Organizer
      第56回物性若手夏の学校,ホテルエバーグリーン富士
    • Place of Presentation
      山梨県富士吉田
    • Year and Date
      20110801-0805
  • [Presentation] Drops and bubbles, spider webs, granular materials, and parabolic-flight experiments2011

    • Author(s)
      Invited Talk, Ko OKUMURA
    • Organizer
      FOAM-C instrument utilization meeting
    • Place of Presentation
      ESA Headquarter, Paris
    • Year and Date
      20110217-18
  • [Presentation] Wettingon artificial lotus surfaces2011

    • Author(s)
      Invited Talk, Ko OKUMURA
    • Organizer
      11th International Symposium on Biomimetic Materials Processing (BMMP-11)
    • Place of Presentation
      Nagoya, Japan
    • Year and Date
      20110125-28
  • [Presentation] 表面・界面の印象派物理学:スーパー理系女子たちが開きつつある新しい物理学の地平2011

    • Author(s)
      基調講演,奥村剛
    • Organizer
      有機バイオ表面・界面研究会-有機バイオ表面ナノシステムの創成&観察の最前線-
    • Place of Presentation
      幕張メッセ(分析展2011併設)
    • Year and Date
      2011-09-09
  • [Presentation] Bubbles and drops2011

    • Author(s)
      Invited Talk, Ko OKUMURA
    • Organizer
      parabolic-flightexperiments and other research interests PolaDrop topical team meeting
    • Place of Presentation
      ESAHeadquarter, Paris
    • Year and Date
      2011-03-08
  • [Presentation] 天然物質の強靭性:硬・柔組み合わせの妙-真珠層とクモの巣を例として2011

    • Author(s)
      招待講演,奥村剛
    • Organizer
      第6回LSWシンポジウム北海道大学百年記念会館ソフト&ウエットマターのデザイン-新素材から生物まで-
    • Place of Presentation
      北海道大学百年記念会館
    • Year and Date
      2011-01-07
  • [Presentation]2010

    • Author(s)
      Invited Plenary Talk, Ko Okumura
    • Organizer
      Toughness of soft-hard composites and Wetting on Textured Substrates the Spring annual meeting of the Materials Research Society of Korea (MRS-K)
    • Place of Presentation
      Palace Hotel in Samcheok City, Korea
    • Year and Date
      20100513-14
  • [Presentation] 天然物質の強靭性:硬・柔組み合わせの妙-真珠層とクモの巣を例として2010

    • Author(s)
      依頼講演,奥村剛
    • Organizer
      バイオミネラリゼーション研究会バイオミネラルゼミ
    • Place of Presentation
      東京大学(本郷)
    • Year and Date
      2010-09-27
  • [Presentation] テスクチャー表面の濡れ(社)表面技術協会2010

    • Author(s)
      依頼講演,奥村剛
    • Organizer
      第37回『ナノテク部会』研究会~ナノスケール汚れと洗浄の基礎科学~東京理科大学森戸記念館第2フォーラム
    • Place of Presentation
      神楽坂
    • Year and Date
      2010-07-29
  • [Remarks] 新聞記事

    • URL

      http://www.phys.ocha.ac.jp/okumuralab/h16/

  • [Remarks] これらによって新聞記者の執筆した記事を通して本研究の一部が一般国民に還元された。

  • [Remarks] (1)朝日新聞2012年11月19日朝刊科学欄柔剛操る自然の達人クモの巣・真珠・シャコに学ぶ(奥村等のクモの巣と真珠層に関する詳細な紹介記事が朝日新聞にて掲載)。同記事はさらにジュニア・アエラに転載され、多くの小学生等にも知られることとなった。

  • [Remarks] (2)朝日新聞2012年3月22日朝刊科学欄探究人「印象派物理学」直感を重視(奥村等の印象派物理学の研究スタイルに関する紹介記事が顔写真入りで朝日新聞に掲載)

  • [Remarks] (3)朝日新聞2012年2月3日夕刊ニュース欄クモの糸超高性能(奥村等のクモの巣の強さの研究に関する記事が朝日新聞に掲載)

  • [Remarks] (4)日刊工業新聞2012年2月2日普遍的な数式追求(奥村等の真珠とクモの巣の強さに関する研究の記事が日刊工業新聞に掲載)

  • [Remarks] (5)2011年9月29日、竹原由佳さん(当時D1)のロレアル-ユネスコ女性科学者日本奨励賞受賞関連記事(顔写真入り)が朝日新聞に掲載。2011年7月13日(受賞発表翌日)にも毎日新聞、読売新聞等に竹原さんの氏名入りで受賞記事が掲載

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Published: 2014-08-29  

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