Strength of Materials

, Volume 41, Issue 4, pp 444–448

Modeling of the mechanical behavior of composite at different relative humidities


  • A. Naceri
    • Mohammed Boudiaf University

DOI: 10.1007/s11223-009-9134-3

Cite this article as:
Naceri, A. Strength Mater (2009) 41: 444. doi:10.1007/s11223-009-9134-3

The moisture diffusion and mechanical response in shear of a laminate constituted of 12 layers of glass fabric fiber/epoxy resin were evaluated. The experimental analysis of the moisture absorption of the specimens conditioned at different relative humidities, 0, 60, and 96% RH at 60°C was to determine the two parameters characteristic of the Fick diffusion law (the diffusion coefficient D and the maximum quantity of water of saturation Mm) which admits the reversibility of the phenomenon. The analysis of the mechanical response in shear of the specimens oriented at 45° tested in uniaxial tension at constant imposed displacement rates, has permitted to show that the influence of the moisture concentration for the composite is very important at 96% RH. The proposed simple model makes it possible to specify the influence of water absorption on the mechanical behavior in shear.


moisture absorptionfabric reinforced compositeglassepoxymechanical behavior

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© Springer Science+Business Media, Inc. 2009