The Naval Surface Warfare Center, Carderock Division, seeks to commercialize through patent licensing a lightweight armor assembly for resisting penetration by both fragments and high velocity sharply pointed projectiles
Generally, military vehicles are subject to attack from high velocity projectiles, including sharply pointed bullets and fragments. Vehicles require armor to protect against these types of attacks. Currently, armor piercing and other high velocity rounds are defeated by heavy, thick, high strength steel armor, with or without angled perforations, ceramics, high strength fabrics or combinations of the same. It is desired to have an armor system that is lightweight and protects against multiple threats such as fragments and sharply pointed bullets.
The Naval Surface Warfare Center, Carderock Division, has developed a lightweight armor assembly for resisting penetration by both fragments and high velocity, sharply pointed projectiles.
Each slide region has a substantially V-shaped protrusion elongated in the Y-direction, having an apex and a base. Each protrusion has a backing material and a polyurea coating over the backing material. When bombarded with high-impact and high-velocity projectiles, polyurea converts to a transient liquid phase. This physical characteristic is used to provide the sliding feature of the slide region.
Thus, when the protrusions are impacted by high-velocity projectiles, instead of penetrating into the surface, the projectiles tend to slide off, as facilitated by the lubricating effect of the transient liquid polyurea.
Thus, when a high velocity sharply pointed projectile strikes the cone, instead of penetrating into the surface, the projectile slides downwards and is redirected in an off-axis orientation towards the receiving region, at which point the projectile is stopped.
Lightweight: Eliminates need for heavy, thick, high strength steel armor
Protects against multiple threats: Combination of the backing material, polyurea, and substantially sinusoidal profile redirects and stops many different types of projectiles
US Patent 9,459,079 is available for license
Potential for collaboration with Navy engineers