Investigation of the mechanical properties of carbon and basalt fiber laminated hybrid epoxy composites

Although carbon fiber reinforced epoxy composites are used in a wide area on structural components, there is a need to increase the toughness of these materials due to their brittle structure. For this purpose, hybrid composites were produced with basalt fibers, which show more ductile behavior than carbon fibers and the mechanical features of the composites were investigated. Layered composites were produced by vacuum infusion method. The effects of hybridization type on mechanical features were studied by producing composites as pure carbon, pure basalt, intercalated and sandwich type hybrids. The mechanical behaviors of the specimens were evaluated by tensile, flexural and Charpy impact tests. At the end of the tests, the mechanical values of the hybrid laminate composites were found between carbon and basalt composites. Adding basalt fiber to carbon fiber, the tensile strength, flexural strength and modulus of elasticity of the composites decreased. However, the impact performance of carbon fiber composites improved with adding basalt fiber.