Mixed mode II+III interlaminar fracture of carbon/epoxy laminates

被引：46

作者：

de Morais, A. B. ^{[1
]}

Pereira, A. B. ^{[1
]}

机构：

[1] Univ Aveiro, Dept Mech Engn, P-3810193 Aveiro, Portugal

来源：

COMPOSITES SCIENCE AND TECHNOLOGY | 2008年 / 68卷 / 09期

关键词：

polymer-matrix composites (PMCs); fracture toughness; delamination finite element analysis (FEA); mixed mode;

D O I：

10.1016/j.compscitech.2008.02.023

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

This paper reports a study of the mixed mode II + III fracture of carbon/epoxy laminates. The specimens used were six-point bending plates with cross-ply lay-up and the standard 0/0 interface. Finite element analyses (FEA) were per-formed to select specimen geometries suitable for measuring the initiation critical strain energy release rate G(c) over a wide range of mode mix ratios. The main difficulties were the non-uniform distributions of G(II) and G(III) and the considerable geometric non-linearity. Nevertheless, experimental results suggested a quasi-linear evolution of G(c) with the G(III)/G mode mix ratio consistent with previously measured G(IIc) values and expected G(IIIc) > G(IIc). (c) 2008 Elsevier Ltd. All rights reserved.

引用

页码：2022 / 2027

页数：6

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