Abstract
Hybrid composites have developed and demanding industrial application and replaced metals and non-metal by specific characteristics. The research work concerned with E- glass epoxy and E-glass / Kevlar 49 reinforcement epoxy. The reinforcing materials oriented at 0°/90°, 45°/45° and 30°/60° lay-up placement. The laminate was produced by hand lay-up method Vacuum Bagging Resin Transfer Molding Technique is used for air escape from the mold cavity for effective adhesion between layers of structural composites. The experimental results achieved by conducting hardness of the samples by following the ASTM standard. The ASTM D-2240 durometer was made to perform hardness over the standard samples. The water absorption characteristics of each specimen of different orientation were observed at different humidity level. Electronic weighing balance ASTM D-570 and Electronic densimeter ASTM D-792 was used for water absorption and density respectively. GFK-0°/90° (Glass fiber and Kevlar 0°/90°) has good hardness result and low density, GF 0°/90° has higher density and low water absorption and GFK 30°/60° has higher capability to absorb water than other orientations, Higher density explain the internal structure with low porous structure which has been confirmed due to low water absorption of this material.
Highlights
Hybrid composite fabricated by dissimilar reinforcement fibers with strong adhesive materials and has tremendous application in automobile body parts, marine, bulletproof and heat resistance vests for lightweight and specific strength [13]
The E-glass/ Kevlar 49 reinforced epoxy resin at 0°/90° have a slight increment in hardness test results other orientations
E-glass reinforced epoxy oriented at 0°/90° has the same hardness results as GFK 0°/90°, 45°/45°, 30°/60°
Summary
Hybrid composite fabricated by dissimilar reinforcement fibers with strong adhesive materials and has tremendous application in automobile body parts, marine, bulletproof and heat resistance vests for lightweight and specific strength [13]. Kevlar (aramids) is the well known low density, high strength fibers and extensively employed in Aircraft structure, protective shields for body armors and lightweight Sports goods [4,5,6]. In hybridization synthetic/ natural fiber stacked layer by layer to produce a structure having interlaminar fracture toughness which cannot be achieved by conventional man-made materials. The lay-up placement of fibers with advance adhesive thermosetting resin significantly affects the mechanical properties of the hybrid composite. High strength reinforcement, the aramid fibers/ glass fibers have a profound achievement to fabricate the laminate.
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