Tensile and impact properties of cost‐effective hybrid fiber metal laminate sandwich structures

Abstract

Abstract Hybrid composite materials, which combine two or more types of fiber in a single matrix, have currently drawn the interest of researchers. This research investigates the tensile and impact properties of hybrid kenaf/glass reinforced metal laminates ( FML s) with different fiber orientations and stacking configurations. FML s were formed by sandwiching the annealed aluminum 5052 sheets to the composite laminates using hot press molding compression technique. The tensile test was performed at a quasi‐static rate of 2 mm/min with reference to ASTM E8 whereas Charpy impact test was conducted using impact pendulum tester according to ASTM E23. Results showed that improvement in tensile and impact strength was observed in hybrid FML s compared to kenaf fiber reinforced FML s. Fiber orientation of ±45° reduced the tensile strength but increased the impact strength of FML s in comparison with fiber orientation of 0°/90°. Overall, hybrid FML s incorporated with a fiber stacking sequence of glass/kenaf/glass showed superior characteristic in tensile and impact performance.