Authors
Olivier Sicot, Xiao-Lu Gong, Abel Cherouat, Jian Lu,
Title
Influence of residual stresses on the mechanical behavior of composite laminate materials
In
Advanced Composites Materials
Volume
14
Issue
4
Pages
319–342
Year
2005
Indexed by
Abstract
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.
Affiliations
Offprint