Characterization of 3D morphology and microcracks in composites reinforced by multi-axial multi-ply stitched preforms - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Composites Part A: Applied Science and Manufacturing Année : 2010

Characterization of 3D morphology and microcracks in composites reinforced by multi-axial multi-ply stitched preforms

Résumé

The micro-structure of polymer matrix composites reinforced by multi-axial multi-ply stitched carbon preforms and manufactured by liquid resin infusion is analyzed. The stitching induces deviations in fibre placement and creates openings which become resin-rich regions after the resin infusion. Characterization of the size and shape of the resin-rich regions of composites with different stitching yarn size and tightness and various stacking sequences has been performed by 2D metallographic micrography and X-ray microtomography. The resin-rich region volume was estimated at roughly 3.0 ± 0.5% of the material volume. The resin-rich regions constitute about 9% of the resin in the entire composite, whose fibre volume fraction is close to 65%. X-ray microtomography was successfully used to characterize the 3D microcracks created by hygrothermal fatigue.
Fichier principal
Vignette du fichier
liotier2010.pdf (1.04 Mo) Télécharger le fichier
Origine Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-00850041 , version 1 (08-09-2021)

Licence

Identifiants

Citer

Pierre-Jaques Liotier, Alain Vautrin, Christine Delisée. Characterization of 3D morphology and microcracks in composites reinforced by multi-axial multi-ply stitched preforms. Composites Part A: Applied Science and Manufacturing, 2010, 41 (5), pp.653-662. ⟨10.1016/j.compositesa.2010.01.015⟩. ⟨hal-00850041⟩
158 Consultations
70 Téléchargements

Altmetric

Partager

Gmail Mastodon Facebook X LinkedIn More