繊維複合材料のひずみ軟化を考慮した多層材料最適化手法の提案

• 加藤 準治

  東北大学 大学院工学研究科土木工学専攻

• RAMM Ekkehard

• 寺田 賢二郎

  東北大学 大学院工学研究科土木工学専攻

• 京谷 孝史

  東北大学 大学院工学研究科土木工学専攻

書誌事項

タイトル別名

• MULTIPHASE MATERIAL OPTIMIZATION FOR FIBER REINFORCED COMPOSITES CONSIDERING STRAIN SOFTENING

抄録

 The present paper addresses an optimization strategy of textile fiber reinforced concrete (FRC) with emphasis on its special failure behavior. Since both concrete and fiber are brittle materials, a prominent objective for FRC structures is concerned with the improvement of structural ductility, which may be defined as energy absorption capacity. Despite above unfavorable characteristics, the interface between fiber and matrix plays a substantial role in the structural response. This favorable 'composite effect' is related to material parameters involved in the interface and the material layout on the small scale level. Therefore the purpose of the present paper is to improve the structural ductility of FRC at the macroscopic level applying an optimization method with respect to significant material parameters at the small scale level. The method discussed is based on multiphase material optimization. This methodology is extended to a damage formulation. The performance of the proposed method is demonstrated in a series of numerical examples; it is verified that the structural ductility can be considerably improved.

収録刊行物

• 土木学会論文集Ａ２（応用力学）

  土木学会論文集Ａ２（応用力学） 67 (1), 39-53, 2011

  公益社団法人 土木学会

キーワード

• multiphase material optimization
• material nonlinearity
• fiber reinforced composites

詳細情報

• CRID: 1390282680326069632
• NII論文ID: 130004557141
• DOI: 10.2208/jscejam.67.39
• ISSN: 21854661
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可