Development of a micromechanical model in interaction with parameters related to the microstructure of carbon/epoxy composites.

Mohamed El Moussaid (1) , Jean Christophe Wahl (1) , Nicolas Perry (1) , Christophe Bois (1)

1 I2M - Institut de Mécanique et d'Ingénierie de Bordeaux

Gaseous Hydrogen storage under high pressure for autonomous energy application leads to non-metallic solutions for the material of vessels. The choice of wound carbon / epoxy composites was adopted for the design of storage tanks under high pressure. In this paper, the development of a micromechanical model in interaction with the microstructure parameters is presented. First a finite element analysis (FEA) allows us to perform numerical simulations on a representative volume cell based on observed microstructure to determine the local mechanical response. Then a parametric study is done. It reveals the effects of the voids on the mechanical properties. These effects identification and evaluation will be the basics knowledge bricks to build a guide design and process improvements for the vessel dome behaviours.

Mots clés: Elastic moduli; Micromechanics; Filament winding; Voids

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

Mohamed El Moussaid, Jean Christophe Wahl, Nicolas Perry, Christophe Bois. Development of a micromechanical model in interaction with parameters related to the microstructure of carbon/epoxy composites.. ECCM 16, 16th European Conference on Composite Materials, Jun 2014, Spain. pp.1-9. ⟨hal-01063393⟩