MECHANICAL PROPERTIES OF EPOXY BASED HYBRID COMPOSITES REINFORCED BY GLASS FIBERS AND SiC PARTICLES.

Abstract

In the present study mechanical properties of pure epoxy and hybrid composites were studied. Pure epoxy and hybrid composites were prepared by Hand lay-up molding and investigated. The composites constituents were epoxy resin as the matrix, 4% and 8% volume fractions of glass fibers as reinforcement and 4% and 8% of silicon carbide as filler particles. The investigated mechanical properties were hardness, tensile properties (ultimate tensile strength (UTS), fracture strength), and impact properties (impact strength, fracture toughness). The experimental results showed that the mechanical properties, Hybrid composite with (Epoxy +8%GF+8% SiC) has the maximum hardness of (82) shore D, Hybrid composites with (Epoxy +8%GF+4% SiC) has the maximum (UTS), fracture strength, impact strength (Gc) & fracture toughness (Kc) of (107) MPa, (108) MPa, (9900) J/m2, (27. 487) MPa.m-1/2 respectively