On an analytical Self-Consistent model for internal stress prediction in fiber-reinforced composites submitted to hygroelastic load

Sylvain Fréour (1) , Frédéric Jacquemin (1) , Ronald Guillen (1)

1 GeM - Institut de Recherche en Génie Civil et Mécanique

The aim of this work is to demonstrate a fully explicit analytical micromechanical self consistent approach dedicated to mechanical states prediction in both the fiber and the matrix of composite structures submitted to a transient hygroelastic load. The analytical forms obtained are applied to the case of carbon epoxy composites. Rigorous continuum mechanics formalisms are used for the determination of the required time and space dependent macroscopic stresses. The reliability of the new approach is checked through a comparison between the local stress states calculated in both the resin and the fiber according to the new closed form solutions and the equivalent numerical model.

Mots clés: self consistent model; analytical approach; hygroelastic stresses

Domaines: Mécanique [physics.med-ph]; Matériaux

Sylvain Fréour, Frédéric Jacquemin, Ronald Guillen. On an analytical Self-Consistent model for internal stress prediction in fiber-reinforced composites submitted to hygroelastic load. Journal of Reinforced Plastics and Composites, 2005, 24, pp.1365-1377. ⟨10.1177/0731684405049887⟩. ⟨hal-01007141⟩