Abstract:
Driven by the global green development strategy, the field of drone materials is also pursuing novel materials that offer low cost, light weight, high safety, and low-carbon environmental advantages. an environmentally friendly composite material with high strength and toughness suitable for unmanned aerial vehicle (UAV) shell was developed by Using thin bamboo and wood veneers as base units, reinforced with carbon fiber and glass fiber fabrics. the effects of type, proportion, lay-up structure and reinforcement materials on bamboo/wood composite physical and mechanical properties were focused. Results showed that the density of the bamboo/wood composites ranges from 1.0 to 1.17 g/cm
3, with a flexural modulus of 34.45 GPa, modulus of rupture of 380.75 MPa, shear strength of 55.87 MPa, tensile strength of 264.06 MPa, and impact toughness of 40 kJ/m
2. Generally, the physical and mechanical properties improved with an decreased proportion of bamboo. The mechanical performance of composites with parallel layup significantly higher than that of cross-laid structures. Both carbon fiber and glass fiber reinforcements significantly enhance the tensile, flexural, compressive, and shear strength as well as the impact toughness of the composite materials. Glass fiber-reinforced composites demonstrated better impact performance than those reinforced with carbon fiber. By optimizing the lay-up method, the bamboo/wood ratio, and the type of reinforcement layer, the synergy of the strength-to-weight ratio of bamboo-wood-based composites can be further enhanced, thereby enabling their application in the field of industrial-grade unmanned aerial vehicles (UAVs).