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

• Published in: Advances in polymer technology Vol. 37; no. 7; pp. 2385 - 2393
• Main Authors: Dhar Malingam, Sivakumar, Jumaat, Faizal Azli, Ng, Lin Feng, Subramaniam, Kathiravan, Ab Ghani, Ahmad Fuad
• Format: Journal Article
• Language: English
• Published: London John Wiley & Sons, Inc 01.11.2018
• Subjects: Aluminum; Charpy impact test; Composite materials; Compression tests; Fiber orientation; Fiber reinforced materials; Fiber-metal laminates; Glass; Hybrid composites; impact properties; Impact strength; Impact tests; Kenaf; kenaf fibers; Pressure molding; Sandwich structures; Stacking sequence (composite materials); tensile properties; Tensile strength; Tensile tests; thermoplastic
• ISSN: 0730-6679; 1098-2329
• DOI: 10.1002/adv.21913

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 (FMLs) with different fiber orientations and stacking configurations. FMLs 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 FMLs compared to kenaf fiber reinforced FMLs. Fiber orientation of ±45° reduced the tensile strength but increased the impact strength of FMLs in comparison with fiber orientation of 0°/90°. Overall, hybrid FMLs incorporated with a fiber stacking sequence of glass/kenaf/glass showed superior characteristic in tensile and impact performance.