Hygrothermal Effect on Stiffness Reduction Modeling Damage Evolution in Cross-Ply Composite Laminates

Abstract:

An analytical model based on the displacement function of the opening of crack applied by Lundmark and Varna [26] in the internal layers to study the evolution of the decrease of stiffness in a laminate is investigated. The results of axial rigidity versus the crack density are presented for three composite materials. The influences of the temperature and moisture on the mechanical properties of composite material are highlighted. The micromechanical model of the laminates used in present study describes the degradation of the mechanical properties of composite material by the variation in the temperature and moisture. The hygrothermal effect is observed to be harmful for composite materials.

• Periodical: Advanced Materials Research (Volume 629)
• Pages: 79-84
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.629.79
• Online since: December 2012
• Authors: M. Sahnoun, D. Ouinas, N. Benderdouche, M. Bouazza, J. Viña
• Keywords: Cross-Ply Laminates, Hygrothermal Effect, Stiffness Reduction, Transverse Crack

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