Durability of a 3D woven composite assisted by finite element multi-scale modelling

Wassim Trabelsi (1) , Lucien Laiarinandrasana (1) , Alain Thionnet (2, 1) , Sébastien Joannès (1)

1 MAT - Centre des Matériaux
2 UB - Université de Bourgogne

The textile composite studied is a 3D woven composite. A unit cell is defined by using microscopic examinations of the microstructure. A multiscale approach assisted by the finite element method is performed in order to estimate the effective properties of the composite and then to access to local stress field. This approach allows the determination of the kind of load to which warp yarns are subjected. Moreover, detailed analysis of damaged model using different configurations of broken yarns are treated. The evolution of the stress concentration coefficient highlight the load transfers due to consecutive yarn breaks.

Mots clés: multi-scale analysis; textile composite; finite element; stress concentration coefficient; durability

Domaines: Sciences de l'ingénieur [physics]; Mécanique [physics.med-ph]; Mécanique des matériaux [physics.class-ph]; Sciences de l'ingénieur [physics]; Matériaux

Wassim Trabelsi, Lucien Laiarinandrasana, Alain Thionnet, Sébastien Joannès. Durability of a 3D woven composite assisted by finite element multi-scale modelling. ECCM 15 - 15th European Conference on Composite Materials, Jun 2012, Venice, Italy. 8 p. ⟨hal-01109487⟩