New body armour concept using semi-solid state shear thickening fluids

摘要

Bullet proof vests, which are used for protection from projectiles, are made of KEVLAR ®. For protection from high impact projectiles, metal reinforcements are provided. Non-Newtonian fluids, which have varying viscosity property can be used for reinforcement with KEVLAR ®. Shear thickening fluids of the Non-Newtonian fluid type are analyzed. When these fluids are sandwiched in semi¬solid form between layers of KEVLAR ®, they are found to provide better protection than only KEVLAR ® armours. Use of fluids in semi-solid state provides better flexibility and the property of the fluids are fully utilized. When impact force is applied on the surface of the armours, they resist them, thus spreading the force over a wider area and reducing the chances of blunt trauma. The fluids are packed in polymer containers and sandwiched between KEVLAR ® layers for flexibility.