A ballistic resistant material and structure and methods for allowing and preventing projectiles from passing through the ballistic resistant defense structure. The ballistic resistant defense structure involves a ballistic multilayer arrangement comprised of V-Profiles 100 which are further comprised of V-shaped wedges arranged adjacent to each other, spaced slightly apart, with gaps. The gaps between the V-shaped wedges expand or contract depending on which side of the V-Profile a projectile strikes.

This invention provides, in some aspects, for devices and methods for protecting a sensitive structure against explosive warhead containing weaponry, whereby a protective apparatus is positioned to be facing an anticipated impact direction at a spacing from said sensitive structure, wherein said apparatus absorbs the impact of said explosive warhead containing weaponry.

A projectile spall generating armor plate incorporating a rigid plate having a first strike face; a matrix of closed loop bullet cleaving edges, each edge among the matrix of closed loop bullet cleaving edges being fixedly attached to or formed wholly with the first strike face; a matrix of second strike faces, each strike face among the matrix of second strike faces being substantially square and being bounded by one of the closed loop bullet cleaving edges; and a matrix of bullet cleaving points or pyramid apexes, each such point or apex being fixedly attached to or formed wholly with one of the second strike faces; the plate further incorporating a matrix of pedestals having a strike face ends, wherein each strike face among the matrix of second strike faces coincides with one of the pedestals' strike face ends.

A system and method are provided for facilitating automated and manual segregation of internal areas within a structure, particularly in response to active shooter warnings, or other triggering events. Embodiments may provide automated systems and methods, products and product components to facilitate simplified and automated (1) deployment of mechanized safety and/or security (bulletproof) curtains, including certain safety curtains comprising, or otherwise formed of, replaceable bulletproof and/or other penetration-resistant materials, and/or (2) actuation of mechanized safety and/or security (bulletproof) doors, to effectively segregate open areas and hallways in buildings. Exemplary embodiments may: (a) limit lines of sight of a perpetrator; (b) interdict bullet flight paths; (c) restrict or eliminate a perpetrator's freedom movement; (d) confine areas of detected explosive ordnance detonations or dispersal of contaminants; (e) provide a means of trapping/isolating a perpetrator; and/or (f) provide local safe havens in active shooter, gunfire, explosive detonation, contaminant dispersal, and like threat scenarios/situations.

A modular armor apparatus includes a support plate and a plurality of replaceable armor modules coupled to the support plate. The armor modules may be detachably/reversibly coupled to the support plate to enable the armor modules to be replaced. In various embodiments, the support plate defines a plurality of first locking features, each armor module of the plurality of armor modules comprises a second locking feature, and the second locking feature of each armor module is configured to be reversibly interlocked with a respective first locking feature of the plurality of first locking features of the support plate.

A synthetic titanium-corundum composite includes a titanium alloy and a coherently bonded corundum phase. The titanium alloy includes at least one elemental titanium solid solution and the atomic percentage of aluminum in the titanium alloy ranges from 0.5% to 24.5%.

A synthetic titanium-corundum composite includes a titanium alloy and a coherently bonded corundum phase. The titanium alloy includes at least one elemental titanium solid solution and the atomic percentage of aluminum in the titanium alloy ranges from 0.5% to 24.5%.

A ballistic panel providing ballistic protection has a first plate having a rear surface and a front surface. A plurality of undulations is fanned across the front surface of the first plate. The plurality of undulations increasing an amount of surface area to contact a projectile.

In some examples, a method for forming a ballistic armor article, the method including forming a preform article by depositing a filament via a filament delivery device, wherein the filament includes a sacrificial binder and a powder; removing the binder from the preform article; and sintering the preform article to form the ballistic armor article, wherein the ballistic armor article is configured to absorb energy from an external projectile that impacts the ballistic armor article, and wherein the ballistic armor article is configured to prevent the projectile from penetrating through the ballistic armor article.

A ballistic armor system comprising a metal strike face plate, a laminate composite backing material secured to the metal strike face plate and an air space provided between the metal strike face plate and the laminate composite backing material. The metal strike face plate has a predetermined defined thickness and has a plurality of slotted holes set at an oblique angle relative to the vertical orientation or axis of the metal strike face plate. The plurality of slotted holes is sufficiently small to prevent the passage of a projectile or fragment therethrough. The laminate composite backing material comprises at least one material selected from an aramid fiber material, S-glass, E-glass and UHMWPE, and is provided in combination with a polymer-based resin material. The air space provided between the metal strike face plate and the composite backing material has a depth in the range between 0-10 inches.