Abstract: An armor system is formed of a substrate including an underlying substrate layer of less hard material and including a thin layer of harder material at a first face of the substrate, and an elastomeric material layer positioned at the first face of the substrate. The increased hardness of the thin hard layer increases the penetration resistance of the armor by increasing the elastomer's contribution to penetration resistance. The properties of the substrate can be independently selected, allowing the use of substrates with lower hardness, increasing the armor's ballistic performance, and lowering the weight of the armor.

Abstract: Methods for forming armored glass cylinders suitable for improving resistance of armor to armor piercing rounds, explosively formed penetrators, or other threats. Cool a cylindrical glass or ceramic element to a temperature below that of a cylindrical casing, place the cylindrical glass or ceramic element into the cylindrical casing while the cylindrical glass or ceramic element is cool, and seal the cylindrical casing and allow the temperature of the cylindrical glass or ceramic element to rise, such that the cylindrical casing compresses the cylindrical glass or ceramic element. Alternately, heat a metal cylindrical casing, press glass or ceramic into the cylinder while the metal cylinder is at an elevated temperature, seal the metal cylindrical casing while metal cylindrical casinger is at an elevated temperature, and allow the the metal cylinder to cool, such that when cooled, the cylindrical casing will compress the glass in all directions.

Abstract: A projectile includes an instant adhesive rubber directly connected to a high tensile strength rope and a water parachute. The projectile can be aimed at, for example, the front one-third of the vessel. Upon impact, an energetic material, such as lead azide, can be initiated to push the rubber onto the vessel and simultaneously deploy the water parachute. The parachute may be weighted to cause the parachute to submerge in the water. A tension generated by the vessel dragging the water parachute would arrest the motion and limit the speed and mobility of the vessel without significant damage to the surface vessel or occupants.

Abstract: An armor system with a composite laminate having at least four alternating layers (two bi-layers) of a first material and a second material, the first material having a lower acoustic impedance than the second material. The first material is a viscoelastic polymer with a glass transition temperature less than the expected operational temperature range, and the second material can be a hard material such as steel, aluminum, or ceramic. The laminate can include many alternating layers of elastomer and hard material, and can be adhered or affixed to a thicker armor substrate. Additional protective elements such as corrugated metal-ceramic panels and armored glass cylinders can be added to improve resistance to armor piercing rounds, explosively formed penetrators, or other threats.

Abstract: An armor system with a composite laminate having at least four alternating layers (two bi-layers) of a first material and a second material, the first material having a lower acoustic impedance than the second material. The first material is a viscoelastic polymer with a glass transition temperature less than the expected operational temperature range, and the second material can be a hard material such as steel, aluminum, or ceramic. The laminate can include many alternating layers of elastomer and hard material, and can be adhered or affixed to a thicker armor substrate. Additional protective elements such as corrugated metal-ceramic panels and armored glass cylinders can be added to improve resistance to armor piercing rounds, explosively formed penetrators, or other threats.

Abstract: A projectile can be fired at a surface vessel and, upon impact, an air bag may be deployed almost instantaneously from underneath the vessel. Through the rapid inflation of the air bag, the stability and orientation of the target surface vessel may be disturbed. Disturbance, at a minimum, may reduce and change the trajectory of the surface vessel, but, in some circumstances, the surface vessel may be overturned. The air bag may be designed with an anti-slip coating to directly couple to the wet hull of the surface vessel. In some embodiments, the projectile may include a delay to enable the air bag to be positioned under the vessel before inflation thereof.

Abstract: A projectile includes an instant adhesive rubber directly connected to a high tensile strength rope and a water parachute. The projectile can be aimed at, for example, the front one-third of the vessel. Upon impact, an energetic material, such as lead azide, can be initiated to push the rubber onto the vessel and simultaneously deploy the water parachute. The parachute may be weighted to cause the parachute to submerge in the water. A tension generated by the vessel dragging the water parachute would arrest the motion and limit the speed and mobility of the vessel without significant damage to the surface vessel or occupants.

Abstract: A projectile system for impeding vessel movement is provided. The system includes a projectile device that contains a superoxide material for generating an exothermic reaction when exposed to water. At termination of flight, the projectile releases the superoxide material into the surrounding water. A delay can be set to enable the projectile to release its payload underneath the water surface, creating both a disturbance in the water and large gas bubbles to affect the trajectory of the target surface vessel.

Abstract: A body armor composite material is provided to protect a wearer from small-arms projectiles. The material includes a flexible liner, a polymer binder disposed on the liner, and ceramic solids embedded in the binder. The flexible liner conforms to a portion of the wearer and elastically deforms in response to application of mechanical force. The binder can be a polyurea foam. The solids can be spheres arranged in a single-layer pattern substantially parallel to liner.

Abstract: A composite armor panel and method of manufacturing the same are disclosed. In one embodiment, a plurality of ceramic spheres are positioned in contact with an armor substrate. A polyurea layer is interposed between the plurality of ceramic spheres such that the polyurea layer partially encapsulates the plurality of ceramic spheres and bonds the plurality of ceramic spheres to the armor substrate. The plurality of ceramic spheres are partially exposed and oriented in a direction of anticipated impact.

Abstract: An armor plate includes at least four layers configured to generate a compression wave that is dissipated in a fracture player. The armor plate includes a deformable layer of a material having an elongation before failure of 20% or more; a transparent ceramic layer adjacent the deformable layer; a transparent fracture layer adjacent the ceramic layer; and a transparent spall liner backing the fracture layer.

Abstract: A shock-triggered warhead fragment transmitter is described. The transmitter is designed to radiate a pulse upon either detonation of the warhead or impact of the fragment with the target. The pulse energy is obtained by shock de-poling of a ferroelectric material and is radiated using a dipole antenna. Detection of the radiated pulses may be used to confirm detonation of the warhead and determine the time and location of the detonation and facilitate battle damage assessment.

Abstract: A shock-triggered warhead fragment transmitter is described. The transmitter is designed to radiate a pulse upon either detonation of the warhead or impact of the fragment with the target. The pulse energy is obtained by shock de-poling of a ferroelectric material and is radiated using a dipole antenna. Detection of the radiated pulses may be used to confirm detonation of the warhead and determine the time and location of the detonation and facilitate battle damage assessment.