A micromechanical failure model for unidirectional fiber reinforced composites

K. Oguni, G. Ravichandran

研究成果: Article

12 引用 (Scopus)

抜粋

Results from a newly developed model for failure in unidirectional fiber reinforced composites based on fracture mechanics are presented. The model is based on (i) analysis of branch crack initiation from the tip of an initial microcrack embedded in an anisotropic material, which serves as a model for the fiber reinforced composite and (ii) evaluation of anisotropy in homogenized elastic material properties and fracture toughness. Based on this model, failure envelope, dominant initial flaw orientation and failure mode for unidirectional fiber reinforced composites under a wide range of stress states are predicted. Parametric study provides quantitative evaluation of the effect of various mechanical and physical properties on the failure behavior, and their influence on strength is identified. Results from the current model are compared with those of existing phenomenological models, which show reasonable agreement.

元の言語English
ページ(範囲)7215-7233
ページ数19
ジャーナルInternational Journal of Solids and Structures
38
発行部数40-41
DOI
出版物ステータスPublished - 2001 9 7
外部発表Yes

ASJC Scopus subject areas

  • Modelling and Simulation
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Applied Mathematics

フィンガープリント A micromechanical failure model for unidirectional fiber reinforced composites' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

  • これを引用