HAL : hal-00718684, version 1

arXiv : 1207.4184

Fiche détaillée

Récupérer au format BibTeX - EndNote - TEI - RefWorks -

15TH EUROPEAN CONFERENCE ON COMPOSITE MATERIALS, Venise : Italie (2012)

VOID PREDICTION DURING LIQUID COMPOSITE MOLDING PROCESSES: WETTING AND CAPILLARY PHENOMENA

Mohamed Amine Ben Abdelwahed 1, Yanneck Wielhorski 1, Laurent Bizet 1, Joël Bréard (  Auteur correspondant ) 1

(24/06/2012)

The aim of this work is to contribute in improving fibrous preforms impregnation for Liquid Composite Molding (LCM) processes. The void prediction in LCM sparks off interest within the Composite Material elaboration because it represents a significant issue to keep the expected mechanical properties of the final product. The liquid properties, the preform geometry and the flow conditions impact the void or bubble entrapped inside and outside the yarns. Nevertheless, due to the complex geometry of the reinforcement, experimental characterization of bubble formation remains delicate. Thus, our study deals with two simple model networks representing connected pores so called "Pore Doublet Model". A first is considering two capillaries converging on a node (T-junction) and a second is representing two capillaries interconnected with a supplying principle. In this paper, we emphasize on microfluidic and millifluidic approaches where wetting and capillary forces are significant during bubble formation mechanism.

1 :	Laboratoire Ondes et Milieux Complexes (LOMC)
	Université du Havre – CNRS : FRE1302

Domaine

:

Sciences de l'ingénieur/Matériaux Sciences de l'ingénieur/Génie des procédés Sciences de l'ingénieur/Mécanique/Mécanique des fluides Physique/Mécanique/Mécanique des fluides

Mots Clés : LCM – Bubble – Pore Doublet Model – Millifluidic

hal-00718684, version 1

http://hal.archives-ouvertes.fr/hal-00718684

oai:hal.archives-ouvertes.fr:hal-00718684

Contributeur : Mohamed Amine Ben Abdelwahed <>

Soumis le : Mardi 17 Juillet 2012, 18:56:10

Dernière modification le : Mardi 17 Juillet 2012, 21:34:48