A method of modifying material properties of a fragmentation device, includes providing a fragmentation device with a first surface, a first section, a second section, a second surface spaced apart from the first surface, a third section, and a fourth section disposed between the first, second, and third sections. The method further includes positioning the fragmentation device within a carbon-rich environment, and absorbing carbon from the carbon-rich environment into the first and second surfaces of the fragmentation device. Additionally, the method further includes increasing a content of carbon at the first and second surfaces of 0.06 wt. % carbon to 1.0 wt. % carbon and maintaining an original content of carbon of 0.01 wt. % carbon to 0.05 wt. % carbon at the fourth section of the fragmentation device by controlling penetration of the carbon into the fourth section.

Device for producing focused explosions, comprises a rigid outer shell, an explosive filling, the explosive filling comprising a plurality of inwardly extending hollows; and a gap defined between the explosive filling and the rigid outer shell.

A projectile launching system can include a projectile launcher and a projectile. The projectile launcher can include at least one barrel, a projectile, a firing pin mechanism, an activator, and a power system. The barrel can extend along a longitudinal axis between first and second ends, with an exit port at the second end. The projectile can be positioned in the barrel and include primer, propellant, and a sub-projectile. The firing pin mechanism can be selectively project into the barrel to engage the primer, whereby the propellant is ignited and the projectile is launched out of the barrel. The activator can be engaged with the firing pin mechanism and engageable by a user to control the firing pin mechanism. The power system can rotate the barrel or the projectile as the firing pin mechanism is projecting into the barrel and engaging the primer of the projectile.

A projectile launching system can include a projectile launcher and a projectile. The projectile launcher can include at least one barrel, a projectile, a firing pin mechanism, an activator, and a power system. The barrel can extend along a longitudinal axis between first and second ends, with an exit port at the second end. The projectile can be positioned in the barrel and include primer, propellant, and a sub-projectile. The firing pin mechanism can be selectively project into the barrel to engage the primer, whereby the propellant is ignited and the projectile is launched out of the barrel. The activator can be engaged with the firing pin mechanism and engageable by a user to control the firing pin mechanism. The power system can rotate the barrel or the projectile as the firing pin mechanism is projecting into the barrel and engaging the primer of the projectile.

A warhead assembly, comprising a cylindrical or conical metal body, having an inner wall with a plurality of channels or grooves extending parallel to a central longitudinal axis. Preformed fragments are inserted in the channels or grooves and a liner with an explosive fill is positioned within the metal body, retaining the preformed fragments in place. The warhead assembly on detonation produces a bimodal distribution of fragments with adequate mass and velocity with optimized mixed fragmentation that defeats or otherwise incapacitates a target or set of targets.

A warhead assembly, comprising a cylindrical or conical metal body, having an inner wall with a plurality of channels or grooves extending parallel to a central longitudinal axis. Preformed fragments are inserted in the channels or grooves and a liner with an explosive fill is positioned within the metal body, retaining the preformed fragments in place. The warhead assembly on detonation produces a bimodal distribution of fragments with adequate mass and velocity with optimized mixed fragmentation that defeats or otherwise incapacitates a target or set of targets.

A procedure for producing a warhead with controlled fragmentation includes manufacturing an inner shell and filling it with an explosive substance. The procedure further includes providing a net around the outer surface of the inner shell as well as depositing a material on and around the net. A warhead is produced by the procedure and includes an inner shell. A material applied to the warhead comprises weak points for guided fragmentation of the deposited material upon detonation of the warhead.

A procedure for producing a warhead with controlled fragmentation includes manufacturing an inner shell and filling it with an explosive substance. The procedure further includes providing a net around the outer surface of the inner shell as well as depositing a material on and around the net. A warhead is produced by the procedure and includes an inner shell. A material applied to the warhead comprises weak points for guided fragmentation of the deposited material upon detonation of the warhead.

A mortar shell including: a metallic inner layer defining an interior of the mortar, the metallic inner layer having a grid formed on an outer surface to define a plurality of metallic fragments separated by grooves; a polymer having first reinforcing fibers disposed within the grooves; and a polymer outer layer, the polymer outer layer having second reinforcing fibers dispersed therein. The grid can be a square grid to define square shaped metallic fragments. The polymer outer layer can include a pattern of dimples formed on an outer surface. The polymer outer layer can include a solid lubricant.

A mortar shell including: a metallic inner layer defining an interior of the mortar, the metallic inner layer having a grid formed on an outer surface to define a plurality of metallic fragments separated by grooves; a polymer having first reinforcing fibers disposed within the grooves; and a polymer outer layer, the polymer outer layer having second reinforcing fibers dispersed therein. The grid can be a square grid to define square shaped metallic fragments. The polymer outer layer can include a pattern of dimples formed on an outer surface. The polymer outer layer can include a solid lubricant.