Loading direction dependence of the tensile stiffness, strength and fatigue life of biaxial carbon/epoxy NCF composites

被引：25

作者：

Vallons, K. ^{[1
]}

Duque, I. ^{[1
]}

Lomov, S. V. ^{[1
]}

Verpoest, I. ^{[1
]}

机构：

[1] Katholieke Univ Leuven, Dept Met & Mat Engn, B-3001 Louvain, Belgium

来源：

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2011年 / 42卷 / 01期

关键词：

Non-crimp fabric composites; Mechanical properties; Fatigue; Loading direction; MULTIPLY STITCHED PREFORMS; REINFORCED COMPOSITES; MECHANICAL-PROPERTIES; HIGH-TEMPERATURES; DAMAGE; BEHAVIOR; COMPRESSION; GEOMETRY; FAILURE; ROOM;

D O I：

10.1016/j.compositesa.2010.09.009

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work, the effect of the loading direction on the tensile properties of a cross-ply carbon/epoxy NCF composite was studied. Both static and fatigue properties were investigated for several sample orientations. For small off-axis angles, a moderate influence on the stiffness was found. For larger angles, the stiffness could be predicted by means of the CLT. An important influence of the sample aspect ratio was found on the strength and fatigue life of the 5 degrees off-axis samples. Normalisation of the fatigue life curves for the different off-axis angles with respect to the static strength removes the loading direction dependence and produces a master curve. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：16 / 21

页数：6

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