Abstract. In the past few decades, researchers are involved in the studies of high-energy penetrator geometry and also the materials used for causing brutal damages on enemy targets. The highly focused area in this field is the shape of the nose and penetration angle of the penetrator. Hybrid blend design target bullets is one among the best aerodynamic design as it is having two different shapes within the nose. The design of these bullets plays an influential role in terms of aerodynamic characteristics and its dynamic performance capability on hitting the targets. Objective of this research is to perform a comparative analysis of 3 different geometrically varied shapes of these bullets by numerical simulation using CFD, based on its performance characteristics such as aerodynamic co-efficients, shock wave existence, Turbulent dissipation rate and normal drag force on the bullet surface.
In this research, metal matrix composites was fabricated using stir cast technique. Al 6061 alloy (Matrix) and silicon carbide (Reinforcement) were selected as particles. Tata Ace (mini truck) frame made of EN31 steel considered as a comparative material. Optimal weight % of SiC particles was selected as 30 %. Tensile, impact, hardness tests and tribological behaviour of the fabricated composites and EN31 steel was carried out. The mechanical tests such as tensile, impact and hardness are conducted according to the ASTM standards. The results shows that the fabricated composites had improved properties when compared to EN31 steel.
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