BUCKLING AND GROWTH OF DELAMINATION IN THERMOSET AND THERMOPLASTIC COMPOSITES

被引:12
作者
GILLESPIE, JW [1 ]
CARLSSON, LA [1 ]
机构
[1] FLORIDA ATLANTIC UNIV,DEPT MECH ENGN,BOCA RATON,FL 33431
来源
JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY-TRANSACTIONS OF THE ASME | 1991年 / 113卷 / 01期
关键词
D O I
10.1115/1.2903387
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
Compression instability growth of through-width delaminations in composite laminates is investigated. A previously developed beam model that incorporates effects of elastic restraint at the ends of the delamination is combined with a finite element superposition model that yields the Mode I (G(I)) and Mode II (G(II)) components of the strain energy release rate. Experimental data were generated for near surface delaminations over a wide range of crack lengths in unidirectional graphite/epoxy and graphite/PEEK laminates. Good agreement between experimentally observed critical loads for crack propagation and analytical predictions was observed using a linear mixed-mode crack growth criterion.
引用
收藏
页码:93 / 98
页数:6
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