MODELING OF ANISOTROPIC DAMAGE AT A CRACK-TIP IN COMPOSITE LAMINATES

被引：1

作者：

LI, WF

DU, SY

机构：

[1] School of Astronautics, Harbin Institute of Technology, Harbin

来源：

ENGINEERING FRACTURE MECHANICS | 1993年 / 45卷 / 03期

关键词：

D O I：

10.1016/0013-7944(93)90022-K

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Anisotropic continuum damage mechanics was applied to analyze the damage at a crack tip in composite laminates. An initial attempt was made to connect continuum damage mechanics with fracture mechanics. Some quantitative relations such as those between stress, energy release rate and damage variables were established by means of the model described in this paper. It was shown that the formula G(I) = K(I)2/E is not applicable when the damage at a crack tip is taken into account. Also, the relation between the critical crack length and the critical damage variables was established and it was proved that damage variables can describe the fracture condition of composite laminates.

引用

页码：381 / 385

页数：5