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

Olivier Sicot 1 Xiao-Lu Gong 1 Abel Cherouat 1 Jian Lu 1
1 LASMIS - Laboratoire des Systèmes Mécaniques et d'Ingénierie Simultanée
ICD - Institut Charles Delaunay
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.
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Journal articles
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Submitted on : Wednesday, September 4, 2019 - 12:45:23 PM
Last modification on : Monday, September 16, 2019 - 4:35:40 PM

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Olivier Sicot, Xiao-Lu Gong, Abel Cherouat, Jian Lu. Influence of residual stresses on the mechanical behavior of composite laminate materials. Advanced Composite Materials, Taylor & Francis, 2005, 14 (4), pp.319-342. ⟨10.1163/156855105774470393⟩. ⟨hal-02278360⟩

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