A momentum trap ballistic armor system comprises an accelerating layer and a plug layer adjacent to the a accelerating layer. The plug layer includes an opening and at least one plug maintained within the opening. When a projectile impacts the accelerating layer, the plug is accelerated to the velocity of the projectile before the projectile perforates the plug, forming a projectile-plug combination. Typically, the accelerating layer and plug layer are joined with an energy absorbing layer, which is used to capture a projectile-plug combination. The accelerating layer is typically ceramic, the plug layer is typically metal, and the energy absorbing layer is typically ballistic cloth material.
Charlie E. Anderson Jr.; Dennis L. Orphal; Gordon R. Johnson