DELAMINATION ENERGY-RELEASE RATES UNDER THERMAL LOADING IN FIBER-REINFORCED COMPOSITE LAMINATES

被引：4

作者：

AOKI, T

KONDO, K

机构：

[1] Institute of Engineering Mechanics, University of Tsukuba, Tsukuba, Ibaraki

[2] Department of Aeronautics, University of Tokyo, Bunkyo-ku, Tokyo

来源：

COMPOSITE STRUCTURES | 1990年 / 14卷 / 03期

关键词：

D O I：

10.1016/0263-8223(90)90049-K

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Free-edge delaminations of fiber-reinforced composite laminates under thermal loading are theoretically investigated. The weak form equilibrium equations are derived for a quasi-three-dimensional problem of laminates and an associated finite element method is used. The strain energy release rate due to the delamination growth is calculated from the finite element method and a newly developed simplified method which is an extension of the method formerly developed by the authors for laminates under mechanical loading. Attention is paid to the longitudinal constraint conditions of laminates, which have significant effects on the energy release rate. Numerical examples are shown for ( 90° 0°)s cross-ply and ( 45° -45°)s angle-ply laminates. © 1990.

引用

页码：213 / 231

页数：19

共 6 条

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