Meso FE simulation of composite reinforcement deformation based on X-ray computed tomography

Naïm Naouar (1) , Emmanuelle Vidal-Sallé (1) , Philippe Boisse (1)

1 LaMCoS - Laboratoire de Mécanique des Contacts et des Structures [Villeurbanne]

Meso-F.E. modelling of 3D textile composites is a powerful tool, which can help determine mechanical properties and permeability of the reinforcements or composites. The quality of the meso F.E. analyses depends on the quality of the initial model. A direct method based on X-ray tomography imaging is introduced to determine finite element models based on the real geometry of 3D composite reinforcements. The method is particularly suitable regarding 3D textile reinforcements for which internal geometries are numerous and complex. An analysis of the image's texture is performed. A hyperelastic model developed for fibre bundles is used for the simulation of the deformation of the 3D reinforcement.

Mots clés: X-ray tomography; Meso scale; Imaging systems; Mechanical permeability; Composite forming; Composite reinforcement; Hyperelastic models

Domaines: Matériaux

Naïm Naouar, Emmanuelle Vidal-Sallé, Philippe Boisse. Meso FE simulation of composite reinforcement deformation based on X-ray computed tomography. Matériaux & Techniques, 2016, 104 (4), ⟨10.1051/mattech/2016029⟩. ⟨hal-01538193⟩