DAMAGE MECHANICS OF COMPOSITE-MATERIALS .2. A DAMAGED-BASED NOTCHED STRENGTH MODEL

被引：57

作者：

KORTSCHOT, MT ^{[1
]}

BEAUMONT, PWR ^{[1
]}

机构：

[1] UNIV CAMBRIDGE,DEPT ENGN,TRUMPINGTON ST,CAMBRIDGE CB2 1PZ,ENGLAND

来源：

COMPOSITES SCIENCE AND TECHNOLOGY | 1990年 / 39卷 / 04期

关键词：

Fracture Mechanics - Mathematical Models - Mathematical Techniques--Finite Element Method - Plastics; Reinforced--Graphite Fiber - Stresses--Analysis;

D O I：

10.1016/0266-3538(90)90078-J

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

A new model of the notched strength of graphite-epoxy composites has been developed. In this second paper of a four-part series, a finite element model has been used to simulate observed subcritical notch tip cracking patterns in cross-ply laminates. The model produced maps displaying tensile stress contours in the 0° ply, and it was found that all specimens failed when the maximum tensile stress in the 0° ply exceeded the strength of that ply. The strength of the 0° ply in the vicinity of the notch tip was determined independently using a Weibull statistical strength model. © 1990.

引用

页码：303 / 326

页数：24

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