Influence of fabrics’ design parameters on the morphology and 3D permeability tensor of quasi-unidirectional non-crimp fabrics

Boris Martin (1) , Sébastien Comas-Cardona (2) , Christophe Binetruy (2) , Noëlle Billon (1) , Jean-Luc Bouvard (1) , Paul Lucas (3)

1 CEMEF - Centre de Mise en Forme des Matériaux
2 GeM - Institut de Recherche en Génie Civil et Mécanique
3 Owens Corning

This research addresses the effects of quasi-UD non-crimp fabric (NCF) design parameters on the fabric architecture and on the permeability tensor. These fabrics are designed for the Liquid Resin Infusion (LRI) of large and thick composite parts. Three fabrics’ parameters intended to bring a flow enhancement to the NCF are investigated: the stitch spacing, the stitch pattern and the weft tow lineal weight. Image analysis is undertaken to characterize the morphology of non-crimp fabric composite. A new continuous permeability measurement method based on compressive tests is proposed to relate the permeability of the quasi-UD NCF to the design parameters during the infusion process. The latter are proven to influence significantly both the fabric architecture and the permeability tensor coefficients.

Mots clés: Fabrics/textiles; Glass fiber; Permeability; Microstructural analysis

Domaines: Matériaux

Boris Martin, Sébastien Comas-Cardona, Christophe Binetruy, Noëlle Billon, Jean-Luc Bouvard, et al.. Influence of fabrics’ design parameters on the morphology and 3D permeability tensor of quasi-unidirectional non-crimp fabrics. Composites Part A: Applied Science and Manufacturing, 2016, 90, pp.470-479. ⟨10.1016/j.compositesa.2016.08.013⟩. ⟨hal-01368853⟩