High temperature damage model for carbon-carbon composites

Patrick Laborde (1) , B. Toson , Marc Odunlami (2)

1 IMT - Institut de Mathématiques de Toulouse UMR5219
2 UPPA - Université de Pau et des Pays de l'Adour

A damage model for carbon-carbon orthotropic composite materials is introduced with a special attention to the thermo-mechanical effects. The internal variables of damage are identified from tension-compression tests according to each fiber direction and from shear tests in each orthotropy plane. The influence of the temperature is taken into account from typical experimental stress-strain curves given for different values of the temperature. The finite element model was implemented in ABAQUS R using an implicit time incremental scheme. Finally, a significant numerical simulation of a thermomechanical loading with damage is presented.

Mots clés: carbon-carbon composites; orthotropic damage; thermo-mechanics effects

Domaines: Mécanique des solides [physics.class-ph]; Mécanique des solides [physics.class-ph]; Modélisation et simulation; Thermique [physics.class-ph]

Patrick Laborde, B. Toson, Marc Odunlami. High temperature damage model for carbon-carbon composites. European Journal of Mechanics - A/Solids, 2011, ⟨10.1016/j.euromechsol.2010.12.014⟩. ⟨hal-00734540⟩