Delamination of pultruded glass fiber-reinforced polymer composites subjected to axial compression

被引：33
作者：
Bai, Yu [1 ]
Vallee, Till [1 ]
Keller, Thomas [1 ]
机构：
[1] Ecole Polytech Fed Lausanne, CCLab, CH-1015 Lausanne, Switzerland
来源：
COMPOSITE STRUCTURES | 2009年 / 91卷 / 01期
基金：
瑞士国家科学基金会;
关键词：
Glass fiber-reinforced polymer; Pultrusion; Compression; Delamination; Buckling; FAILURE; STRENGTH; BEHAVIOR; JOINTS;
D O I：
10.1016/j.compstruct.2009.04.030
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
Axial compression experiments were conducted on pultruded E-glass fiber-rein forced polymer laminates of different slenderness. Second-order deformations greatly increased the bending moments and shear forces of slender specimens. Delamination failure occurred in all specimens, independent of slenderness. Based on measurements of lateral deformations at delamination initiation, the distribution of shear forces was determined and the stress state at failure was obtained and compared to an adopted failure criterion. Ultimate loads were further predicted based on FIE analysis. After delamination, specimens could sustain a residual load, which could be estimated based on a buckling analysis on the separated laminates for specific cases. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码：66 / 73
页数：8
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