Development of a Tool to Design Materials and Structures of Hybrid FRP

• Project/Area Number: 21560495
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Structural engineering/Earthquake engineering/Maintenance management engineering
• Research Institution: Tohoku University
• Principal Investigator: IWAKUMA Tetsuo 東北大学, 大学院・工学研究科, 教授 (60120812)
• Co-Investigator(Kenkyū-buntansha): SAIKI Isao 東北大学, 大学院・工学研究科, 准教授 (40292247) ; YAMADA Masaki 東北大学, 大学院・工学研究科, 助教 (30323083)
• Project Period (FY): 2009 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000); Fiscal Year 2011: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2010: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2009: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
• Keywords: 複合材料 / 均質化 / 平均化 / 均質化・平均化 / 界面はく離

Research Abstract

Accuracy of analytical averaging methods of composite materials depends on the choice of the matrix materials especially in elastoplastic estimates with various inclusions. We proposed a new averaging method using the virtual matrix together with a finite element. In addition, the progressive debonding phenomenon along the interface was simulated by a simple model. Several numerical examples and comparisons with experimental results showed the characteristics and feasibility of this tool.

Research Products

• [Journal Article] A Modification of the Mori-Tanaka Estimate of Average Elastoplastic Behavior of Composites and Polycrystals with Interfacial Debonding (2011)
  • Author(s): S. Koyama, S. Katano, I. Saiki and T. Iwakuma
  • Journal Title: Mechanics of Materials Volume: Vol.43 Pages: 538-555
  • Peer Reviewed
• [Journal Article] A modification of the Mori-Tanaka estimate of average elastoplastic behavior of composites and polycrystals with interfacial debonding (2011)
  • Author(s): K.Koyama
  • Journal Title: Mechanics of Materials Volume: Vol.43 Issue: 10 Pages: 538-555
  • DOI: 10.1016/j.mechmat.2011.06.010
  • Peer Reviewed
• [Journal Article] ハイブリッド複合材料のはく離を考慮した有限要素の開発 (2009)
  • Author(s): 片野俊一、斉木功、小山茂、岩熊哲夫
  • Journal Title: 応用力学論文集、土木学会 Volume: Vol.12 Pages: 299-310
  • NAID: 40016868739
  • Peer Reviewed
• [Journal Article] ハイブリッド複合材料のはく離を考慮した有限要素の開発 (2009)
  • Author(s): 片野俊一
  • Journal Title: 応用力学論文集、土木学会 12 Pages: 299-310
  • Peer Reviewed
• [Presentation] Alternative Mori-Tanaka Averaging Approach of Elasto-plastic Composites and Polycrystals, the Symposium in Memory of Professor Toshio Mura (2010)
  • Author(s): T. Iwakuma
  • Organizer: Recent Advances in Nano-Micromechanics of Materials,'
  • Place of Presentation: 米国イリノイ州ノースウェスタン大学
  • Year and Date: 2010-05-24
• [Remarks] (報告冊子体を置いた)
  • URL: http://mechanics.civil.tohoku.ac.jp/~bear/iwakuma.html
• [Remarks]
  • URL: http://mechanics.civil.tohoku.ac.jp/~bear/iwakuma.html