On the influence of pre-stress on the mechanical properties of a unidirectional GRE composite

被引：36
|
作者：
Hadi, AS [1 ]
Ashton, JN [1 ]
机构：
[1] UMIST, Dept Engn Mech, Div Appl Mech, Manchester M60 1QD, Lancs, England
来源：
COMPOSITE STRUCTURES | 1997年 / 40卷 / 3-4期
关键词：
D O I：
10.1016/S0263-8223(98)00032-4
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
The effect of composite pre-stress on the mechanical properties of E-glass fibre in an epoxy resin has been investigated theoretically and experimentally. Experimental results have been obtained for pre-stresses (0, 25, 50, 75, 100, 200 MPa) at each of three fibre volume fractions (0.35, 0.45, 0.6). A theoretical model has been developed to predict the effect of composite pre-stress on the pre-load strain in fibre and matrix, tensile strength and elastic modulus of the composite. The results show that pre-tensioning of the fibre during fabrication increases the tensile strength and elastic modulus of the composite. This increase has been found to be a function of composite pre-stress and fibre volume fraction. Good agreement has been obtained between the theoretical results and experimental measurements. (C) 1998 Published by Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：305 / 311
页数：7
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