Mechanical Properties of Fibre Metal Laminates with Unsaturated Polyester Resin: Effects of Fibre Orientations
摘要
Composite materials, known for their tailored properties, find extensive applications across industries due to their lightweight and high-strength characteristics. Among these, fibre metal laminates (FML) stand out as innovative materials that combine metal layers with fibre reinforced plastics (FRP), offering unique benefits desirable in sectors such as aerospace, aviation and automotive. Nevertheless, conventional FML typically produced under one fibre stacking sequence, often does not satisfy the strict ductility and strength requirements for structural application. Therefore, this study investigates the mechanical properties of FMLs, emphasising the impact of different fibre stacking sequences. A variety of FML specimens, including glass-reinforced aluminum laminate (GLARE), carbon-reinforced aluminum laminates (CARALL) and hybrid laminates (GCCG and CGCG, where C represents woven carbon fibre and G represents woven glass fibre), were fabricated using vacuum-assisted resin transfer moulding (VARTM). The mechanical properties of fabricated FML specimens were determined using burn-off tests, tensile tests and flexure tests, all of which followed the ASTM standard. The results showed that CARALL laminates exhibit a superior performance in terms of tensile properties. Conversely, the hybrid CGCG laminate demonstrates an elevated flexure strength, attributed to the synergistic combination of woven glass and carbon fibres, which optimises the ability of laminates to resist bending loads. These findings provide valuable insights into optimising FMLs with tailored fibre orientations for high-performance applications, offering new possibilities in sectors where material performance is critical.