Influence of residual stresses on the mechanical behavior of composite laminate materials

Residual stresses occur during most manufacturing processes (from shrinkage of the resin, difference of thermal expansion coefficients, etc.). Residual stresses may cause local yielding and damage initiation and propagation, and can severely affect performances of a composite structure component. Th...

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Bibliographic Details
Published inAdvanced composite materials Vol. 14; no. 4; pp. 319 - 342
Main Authors Sicot, O., Gong, X. L., Cherouat, A., Lu, J.
Format Journal Article
LanguageEnglish
Published Taylor & Francis Group 01.01.2005
Taylor & Francis
Subjects
ACOUSTIC EMISSION
CURE CYCLE
Engineering Sciences
MECHANICAL PROPERTIES
Mechanics
Mechanics of materials
RESIDUAL STRESSES
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Summary:Residual stresses occur during most manufacturing processes (from shrinkage of the resin, difference of thermal expansion coefficients, etc.). Residual stresses may cause local yielding and damage initiation and propagation, and can severely affect performances of a composite structure component. The aim of this work is to investigate the influence of residual stresses on the mechanical behavior of carbon/epoxy cross-ply laminates under tensile and torsion loading. The residual stresses field was determined using the incremental blind-hole drilling technique combined with the finite element analysis. The effect of various cure cycles on the residual stress level is analysed. The quantitative effect of the residual stresses on the mechanical behaviour and the damage initiation and growth is studied by using acoustic emission technique.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0924-3046
1568-5519
DOI:10.1163/156855105774470393