Abstract

The vacuum-assisted resin transfer molding (VARTM) process is the advancement of conventional resin transfer molding (RTM) process that comes under liquid composite molding (LCM) process. In VARTM process, the single mold is used and vacuum pressure is provided for the resin infusion in fibrous reinforcements. Natural fiber-reinforced composite is gaining attention due to its properties such as high strength-to-weight ratio, economical, and eco-friendliness. This article aims to study the effect of stacking sequence and substacking sequence on permeability, during fabrication of the hybrid composites using natural reinforcements. The resin flow and mold filling time are affected by the permeability. The experimental value of permeability is obtained, through tracked flow front with respect to time. The permeability values for jute and flax stacking sequence and substacking sequences are used as input for simulation. There is good agreement found between experimental and simulated mold filling time. From this study, it is found that permeability depends on fiber stacking sequence and also substacking sequence.

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