Experimental Investigations on Flexural Properties of Longitudinally and Transversely Placed Fiber Reinforced Polymeric Composites

摘要

In present study, an experimental investigation is carried out to evaluate flexural properties of longitudinally and transversely placed fiber reinforced polymeric composites. For this purpose, fabrication of composites is carried out by using mould and punch setup and following hand layup technique. Natural fiber yarn: bamboo fiber yarn, jute fiber yarn & flax fiber yarn and synthetic fiber yarn: kevlar fiber yarn, carbon fiber yarn & glass fiber yarn are selected as a reinforcement. Polyester resin is selected as a matrix. The flexural testing of composites is carried out on the universal testing machine as per ASTM D790-10 and evaluates the flexural properties of composites. The paper signifies the outcome as, flexural strength and flexural modulus are dependent on weight fraction of fiber and increases with increase in weight fraction of fiber in longitudinally placed fiber reinforced composites; flexural strength and flexural modulus are dependent on the interphase and its adhesion phenomenon in transversely placed fiber reinforced composites; flexural strength and flexural modulus are higher in longitudinally placed reinforced composites compared to transversely placed reinforced composites.