Mechanisms generating residual stresses and distortion during manufacture of polymer-matrix composite structures

被引：241

作者：

Wisnom, MR ^{[1
]}

Gigliotti, M ^{[1
]}

Ersoy, N ^{[1
]}

Campbell, M ^{[1
]}

Potter, KD ^{[1
]}

机构：

[1] Univ Bristol, Dept Aerosp Engn, Bristol BS8 1TR, Avon, England

来源：

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2006年 / 37卷 / 04期

基金：

英国工程与自然科学研究理事会;

关键词：

polymer-matrix composites (PMCs); residual/internal stress; process monitoring; cure distortion;

D O I：

10.1016/j.compositesa.2005.05.019

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The mechanisms causing residual stresses and distortions are considered, and the way they develop during the cure discussed. Experimental results are presented through the cure cycle on curvature of unsymmetric laminates, spring-in of curved sections and stresses in flat plates due to tool-part interaction. It is shown that thermal stresses after vitrification are the main cause of distortion of unsymmetric plates, whereas thermal stresses and chemical shrinkage, while the material is in the rubbery state, both contribute to spring-in. Large stresses can develop due to tool-part interaction, even before gelation. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：522 / 529

页数：8

共 23 条

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