In-situ Analysis of Laminated Composite Materials by X-ray Micro-Computed Tomography and Digital Volume Correlation

R. Brault (1) , A. Germaneau (2) , J.C. Dupré (2) , P. Doumalin (2) , Sebastien Mistou (1) , Marina Fazzini (1)

1 LGP - Laboratoire Génie de Production
2 PPrime [Poitiers] - Institut Pprime [UPR 3346]

The complex mechanical behaviour of composite materials, due to internal heterogeneity and multi-layered composition impose deeper studies. This paper presents an experimental investigation technique to perform volume kinematic measurements in composite materials. The association of X-ray micro-computed tomography acquisitions and Digital Volume Correlation (DVC) technique allows the measurement of displacements and deformations in the whole volume of composite specimen. To elaborate the latter, composite fibres and epoxy resin are associated with metallic particles to create contrast during X-ray acquisition. A specific in situ loading device is presented for three-point bending tests, which enables the visualization of transverse shear effects in composite structures.

Mots clés: Composite materials; Micro-computed tomography; Digital volume correlation; In-situ loading; Three-point bending

Domaines: Mécanique des matériaux [physics.class-ph]; Mécanique des matériaux [physics.class-ph]

R. Brault, A. Germaneau, J.C. Dupré, P. Doumalin, Sebastien Mistou, et al.. In-situ Analysis of Laminated Composite Materials by X-ray Micro-Computed Tomography and Digital Volume Correlation. Experimental Mechanics, 2013, ⟨10.1007/s11340-013-9730-9⟩. ⟨hal-00814035⟩