Environmental effects on thermally induced multistability in unsymmetric composite laminates

被引：64

作者：

Etches, Julie ^{[1
]}

Potter, Kevin ^{[1
]}

Weaver, Paul ^{[1
]}

Bond, Ian ^{[1
]}

机构：

[1] Univ Bristol, Adv Composites Ctr Innovat & Sci, Bristol BS8 1TR, Avon, England

来源：

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2009年 / 40卷 / 08期

基金：

英国工程与自然科学研究理事会;

关键词：

PMCs; Residual/internal stress; Environmental degradation; SNAP-THROUGH; PLATES; MOISTURE; DEFORMATION; BIFURCATION; TEMPERATURE; ACTUATORS; TRANSIENT; AIRCRAFT; STRESS;

D O I：

10.1016/j.compositesa.2009.05.018

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The principles involved in the generation of thermal induced multistability in carbon fibre epoxy laminates have received much interest in the published literature. This work examines the effects of moisture absorption on the mechanical properties of these plates focussing on geometry and 'snap-through' loadings. Samples were monitored from a dry state until moisture equilibrium was achieved. It was observed that substantial changes in geometry and snap-through performance occurred as moisture content increased. As part of this work, a first order strain energy analysis was modified to incorporate a hygrothermal strain term to enable prediction of the laminate shape due to moisture content. (c) 2009 Elsevier Ltd. All rights reserved.

引用

页码：1240 / 1247

页数：8

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