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Conference papers
Consideration of the Dual Scale of Pore Size in Wicking Validation on Carbon Reinforcements ans Application to the Swelling of Bio-Based Reinforcements
Abstract : In Liquid Composite Moulding (LCM) process, capillary phenomena occur during impregnation of a fibrous reinforcement. Capillary wicking in a fibrous medium is described by the Washburn’s equation and then can be modelled through the Darcy’s law where the driving force can be described as a capillary pressure. In case of natural fibres, Washburn’s model is not sufficient to describe wicking because of water absorption that causes fibre swelling during liquid imbibition. In this study, a new model is proposed, taking into account the effect of fibre swelling at two scales: elementary fibres and yarns. These effects have been modelled and a modified approach of Washburn’s theory has been developed to predict capillary wicking in fabric undergoing swelling in liquids.
https://hal.mines-ales.fr/hal-02443422
Contributor : Administrateur Imt - Mines Alès <>
Submitted on : Friday, January 17, 2020 - 10:29:55 AM
Last modification on : Friday, February 14, 2020 - 1:26:04 PM
Contributor : Administrateur Imt - Mines Alès <>
Submitted on : Friday, January 17, 2020 - 10:29:55 AM
Last modification on : Friday, February 14, 2020 - 1:26:04 PM
