HYGROTHERMAL INFLUENCE ON MODE-I EDGE DELAMINATION IN COMPOSITES

被引:5
作者
ARMANIOS, EA
BADIR, AM
机构
[1] School of Aerospace Engineering, Georgia Institute of Technology, Atlanta
关键词
8;
D O I
10.1016/0263-8223(90)90020-F
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
A shear deformation theory is developed to calculate the interlaminar stresses and energy release rate associated with mid-plane edge delamination growth in graphite/epoxy laminates. The analysis includes the effect of residual thermal and moisture stresses. Results indicate that residual thermal stress increases the interlaminar stresses and strain energy release rate, while moisture content tends to alleviate thermal effects. Moreover, the value of moisture content at which the interlaminar stresses and strain energy release rate are totally alleviated is not affected by the stacking sequence. © 1990.
引用
收藏
页码:323 / 342
页数:20
相关论文
共 8 条
[1]  
Whitney, Knight, A modified free edge delamination specimen, Delamination and debonding of materials, pp. 298-314, (1985)
[2]  
O'Brien, Characterization of delamination onset and growth in a composite laminate, Damage in Composite Materials, pp. 140-167, (1982)
[3]  
Pagano, On the calculation of interlaminar normal stress in composite laminates, Journal of Composite Materials, 8, pp. 65-82, (1974)
[4]  
Armanios, Rehfield, Interlaminar analysis of laminated composites using a sublaminate approach, Proceedings of the AIAA/ASME/ASCE/ASH 27th Structures, Structural Dynamics, and Materials (SDM) Conference, pp. 442-452, (1986)
[5]  
Whitney, Stress analysis of a mode I edge delamination specimen for composite materials, AIAA Journal, 24, 7, pp. 1163-1168, (1986)
[6]  
Armanios, Rehfield, Reddy, Design analysis and testing for mixed mode and mode II interlaminar fracture of composites, Composite Materials: Testing and Design (Seventh Conference), pp. 232-252, (1986)
[7]  
Jones, Mechanics of Composite Materials, (1975)
[8]  
O'Brien, Raju, Garber, Residual thermal and moisture influences on the strain energy release rate analysis of edge delamination, Journal of Composites Technology and Research, 8, 2, pp. 37-47, (1986)