FIBER INTERACTIONS IN 2-DIMENSIONAL COMPOSITES

被引：16

作者：

EITAN, A

WAGNER, HD

机构：

[1] Materials Research Department, Weizmann Institute of Science

来源：

APPLIED PHYSICS LETTERS | 1991年 / 58卷 / 10期

关键词：

D O I：

10.1063/1.105209

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A new approach is proposed for assessing the stress concentration factors in two-dimensional undirectional composite materials containing broken fibers. A closed-form expression is derived for the stress concentration factor profiles as a function of materials and geometrical parameters. The model differs significantly from earlier schemes as the local effect of a fiber break on nearest neighbors is much milder than previously assumed, both as a function of the interfiber distance (or fiber content) and of the number of adjacent broken fibers. Comparison with experimental results for SiC/epoxy composites demonstrates the validity of the proposed scheme. The model may help shed light on the (multifilament) fragmentation process [H. D. Wagner and A. Eitan, Appl. Phys. Lett. 56, 1965 (1990)] and on fracture nucleation and growth in composites.

引用

页码：1033 / 1035

页数：3

共 17 条

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[2]

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[3]

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