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Non-Linear Behavior of Polymeric Resin Matrix Composites: Modeling of Laminates
Laboratoire Forsem Composites, Institut Universitaire de Technologie de Nantes, 3, Rue due Marechal Joffre, 44041 Nantes Cedex 01, France
Centre Technique des Industries Mécaniques-Le Cetim, Département Étanchéité-Calcul, 74, Route de la Joneliére, BP 8261 7-44326 Nantes Cedex 3, France This paper presents an analytical method to model the non-linear behavior of polymeric resin matrix composites. Complementary energy density is used to derive a stress-strain relation which is non-linear in uniaxial loadings in the longitudinal, transverse directions and in shear. The laminae behaviors are modeled by an n-order terms equation, with n going from two to five according to the non-linearity behavior. This paper presents results for [mat/0 well-balanced woven/mat] E-glass/polyester laminates with high matrix ratio and shows good agreement with experimental data.
Key Words: non-linear behavior modeling smoothing mat woven laminates
Journal of Reinforced Plastics and Composites, Vol. 18, No. 14,
1268-1286 (1999) |
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