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unidirectional-injection
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An experimental study of saturated and unsaturated permeabilities in resin transfer molding based on unidirectional flow measurements
, Article Journal of Reinforced Plastics and Composites ; Volume 23, Issue 14 , 2004 , Pages 1515-1536 ; 07316844 (ISSN) ; Trochu, F ; Ghaffarian, S. R ; Karimian, S. M. H ; Lessard, L ; Sharif University of Technology
2004
Abstract
Unidirectional experiments were carried out for the evaluation of the unsaturated permeability of the reinforcement during the injection and the saturated permeability. Saturated permeability was found to govern the permanent flow established after filling of the cavity. The unsaturated permeability was evaluated by a linear regression in function of the position of the resin front during transient flow experiments performed at constant injection pressure. The difference between these two permeability values is also related to the pore structure of the fiber bed