Tensile Strength of Various FRP Hybrid Between Glass Fiber and Carbon Fiber

Abstract

Hybrid composite materials are composite materials with different material strengths, which have a great potential to be developed as engineering materials. Hybrid polymer composite materials offer an economical design to obtain optimal performance according to the workload with reference to the choice of fiber and matrix. Optimal performance of the material can be achieved by combining two different types of fibers and composited with an epoxy. This hybrid composite material is made by hand lay-up method. The objective of this study is to analyze the tensile strength of the FRP hybrid between carbon and glass fiber. The variation of the specimen in the form of the percentage of carbon fiber width to glass fiber is 35%, 40% and 45% respectively. Carbon fiber and glass fiber are bonded using epoxy according to ASTM D 3039. Tensile strength test is based on ASTM D 3038, to obtain tensile strength and modulus of elasticity. The test results show a significant change in the stress and strain, where the 45% FRP hybrid specimen gives the highest ultimate tensile strength and behaves slightly brittle. Meanwhile, FRP 40% showed almost the same strength as FRP 45%, with a higher strain value, thus giving a ductile behavior. In general, it can be concluded that the specimens with a high percentage of carbon fiber showed an increase in tensile strength and modulus of elasticity, but resulted in a significant decrease in strain