Experimental and numerical analysis of interply porosities in composites thermoforming
Résumé
Effective forming of Continuous Fiber Reinforced Thermoplastic Composites requires a detailed understanding and modeling of the forming mechanisms and the development of computational techniques for process simulation. A re-compaction stage is performed at the end of the process in order to avoid interply porosities. The through the thickness behaviour of the composite during forming and consolidation is analysed by a shell finite element with pinching degrees of freedom. This element avoids a locking due to pinching by a modification of the constitutive relation.
Domaines
Mécanique [physics.med-ph]| Origine | Fichiers produits par l'(les) auteur(s) |
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