Interaction of paste and fracture

2013 Fiscal Year Final Research Report

• Project/Area Number: 23540452
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Mathematical physics/Fundamental condensed matter physics
• Research Institution: Nara Women's University
• Principal Investigator: KITSUNEZAKI So 奈良女子大学, 自然科学系, 准教授 (00301284)
• Co-Investigator(Kenkyū-buntansha): NAKAHARA Akio 日本大学, 理工学部, 准教授 (60297778) ; OOSHIDA Takeshi 鳥取大学, 工学研究科, 助教 (50294343)
• Co-Investigator(Renkei-kenkyūsha): OTSUKI Michio 島根大学, 総合理工学研究科, 講師 (30456751) ; MIZUGUCHI Tsuyoshi 大阪府立大学, 工学研究科, 准教授 (80273431)
• Project Period (FY): 2011 – 2013
• Keywords: 乾燥破壊 / 亀裂成長速度 / 塑性変形 / ペーストの記憶効果 / レオロジー / 粉体の力学 / パターン形成 / 非線形動力学

Research Abstract

Drying changes slurries of fine solid particles and liquid to plastic fluids with appearance of finite yield stresses and generally creates cracks in the vicinity of the plastic limit. The purpose of this research is to clarify the effect of plasticity to crack growth, the anisotropy of material properties induced by the memory effect, and the fracture condition of drying paste. A mathematical model based on invasion percolation on a nonlinear elastic lattice was proposed to understand drying and cracking in a unified manner and the fracture condition was given theoretically. We carried out compression tests in experiments and found the memory effect for starch paste, which is one of typical shear thickening fluids. We also confirmed the dependency of crack speed on the layer thickness for starch paste, which was qualitatively different from that for calcium carbonate paste.

Research Products

• [Journal Article] Cracking condition of cohesionless porous materials in drying processes (2013)
  • Author(s): 狐崎創
  • Journal Title: Physical Review E Volume: 87巻 Pages: 052805-1-10
  • DOI: 10.1103/PhysRevE.87.052805
  • Peer Reviewed
• [Journal Article] Position control of desiccation cracks by memory effect and Faraday waves (2013)
  • Author(s): 中山 寛士, 松尾 洋介, 大信田 丈志, 中原明生
  • Journal Title: European Physical Journal E Volume: 36巻 Pages: 1-1-1-13
  • DOI: 10.1140/epje/i2013-13001-8
  • Peer Reviewed
• [Journal Article] Control of crack pattern using memory effect of paste (2011)
  • Author(s): 中原 明生, 松尾 洋介
  • Journal Title: Journal of Physics: Conference. Series Volume: 319巻 Pages: 012014-1-10
  • DOI: 10.1088/1742-6596/319/1/012014
  • Peer Reviewed
• [Presentation] 澱粉ペーストの揺れの記憶 (2014)
  • Author(s): 佐々木ありな, 中原 明生, 松尾 洋介, 狐崎 創
  • Organizer: 日本物理学会 第69回年次大会
  • Place of Presentation: 東海大学
  • Year and Date: 2014-03-30
• [Presentation] 澱粉ペーストの乾燥破壊における亀裂成長 (2014)
  • Author(s): 狐崎 創
  • Organizer: 日本物理学会 第69回年次大会
  • Place of Presentation: 東海大学
  • Year and Date: 2014-03-28
• [Presentation] 澱粉ペーストのType I 亀裂 (2013)
  • Author(s): 狐崎 創, 中原明生, 松尾洋介
  • Organizer: 日本物理学会2013年秋季大会
  • Place of Presentation: 徳島大学
  • Year and Date: 2013-09-25
• [Presentation] Fracture condition of drying paste (2013)
  • Author(s): 狐崎 創
  • Organizer: 1st International Workshop on Wetting and evaporation : Droplets of pure and complex fluids
  • Place of Presentation: Polytech'Marseille Engineering School, Marseille, France
  • Year and Date: 2013-06-17
• [Presentation] ペーストの乾燥過程での破壊条件 (2013)
  • Author(s): 狐崎 創
  • Organizer: 日本物理学会 第68回年次大会
  • Place of Presentation: 広島大学
  • Year and Date: 2013-03-27
• [Presentation] Drying crack in cohesionless porous materials (2013)
  • Author(s): 狐崎 創
  • Organizer: The international symposium "Self-organization and emergent dynamics in active soft matter"
  • Place of Presentation: 京都大学
  • Year and Date: 2013-02-19
• [Presentation] 弾性変形を伴うペーストの乾燥過程(II) (2011)
  • Author(s): 狐崎 創
  • Organizer: 日本物理学会2011年秋季大会
  • Place of Presentation: 富山大学
  • Year and Date: 2011-09-24
• [Remarks]
  • URL: http://www.complex.phys.nara-wu.ac.jp/~kitsune/paper/paper.html