A comprehensive model for determining tensile strengths of various unidirectional composites

Jun Koyanagi*, Hiroshi Hatta, Masaki Kotani, Hiroyuki Kawada

*この研究の対応する著者

研究成果: Article査読

45 被引用数 (Scopus)

抄録

Simultaneous fiber-failure (SFF) model that determines tensile strengths for various systems of unidirectional composites comprehensively is presented. The SFF derives the strength of unidirectional composites as a function of the single-fiber strength distribution, interfacial shear strength, and matrix strength. The point of the SFF is that a fiber group which is considered to be experiencing simultaneous fiber failures triggered by neighboring fiber failures is assumed to fail when the weakest fiber in the fiber group fails. We discuss a method to determine the magnitude of the fiber group for various systems of composites on a basis of whether a crack located near a bi-materials interface penetrates into another material or deflects along the interface. The SFF is established by integrating the magnitude of the simultaneous fiber failures into the conventional Global load sharing model.

本文言語English
ページ(範囲)1901-1914
ページ数14
ジャーナルJournal of Composite Materials
43
18
DOI
出版ステータスPublished - 2009 8

ASJC Scopus subject areas

  • セラミックおよび複合材料
  • 材料力学
  • 機械工学
  • 材料化学

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