Abstract:
An apparatus and method for evaluating the backface signature of flat panel ballistic resistant composites with accuracy, repeatability and improved correlation to the expected backface signature of shaped ballistic resistant composites in actual field use.
Abstract:
A method of producing composites useful for the formation of armor and armor sub-assembly intermediates. More particularly, improved ballistic resistant composites and a method for the production of ballistic resistant composites and armor sub-assembly intermediates from composites that have resin-poor surfaces resulting from the non-uniform impregnation polymeric binder materials in fiber layers.
Abstract:
Un aparato y método para evaluar la energía de impacto transmitida de materiales mixtos resistentes a balística de panel plano con exactitud, capacidad de repetición y correlación mejorada a la energía de impacto transmitida esperada de materiales mixtos resistentes a balística configurados en uso de campo real.
Abstract:
Ballistic resistant composite materials having high positive buoyancy in water are provided. More particularly, provided are foam-free, buoyant composite materials fabricated using dry processing techniques. The materials comprise fibrous plies that are partially coated with a particulate binder that is thermopressed to transform a portion of the binder into raised, discontinuous patches bonded to fiber/tape surfaces, while another portion of the particulate binder remains on the fibers/tapes as unmelted particles. The presence of the unmelted binder particles maintains empty spaces within the composite materials which increases the positive buoyancy of the composites in water.
Abstract:
A method of producing composites useful for the formation of armor and armor sub-assembly intermediates. More particularly, improved ballistic resistant composites and a method for the production of ballistic resistant composites and armor sub-assembly intermediates from composites that have resin-poor surfaces resulting from the non-uniform impregnation polymeric binder materials in fiber layers.
Abstract:
Ballistic resistant composite materials having high positive buoyancy in water are provided. More particularly, provided are foam-free, buoyant composite materials fabricated using dry processing techniques. The materials comprise fibrous plies that are partially coated with a particulate binder that is thermopressed to transform a portion of the binder into raised, discontinuous patches bonded to fiber/tape surfaces, while another portion of the particulate binder remains on the fibers/tapes as unmelted particles. The presence of the unmelted binder particles maintains empty spaces within the composite materials which increases the positive buoyancy of the composites in water.
Abstract:
A process for forming defect-free fibrous composite materials. More particularly, a process for forming blister-free fibrous composites without having to actively monitor or control blister formation during molding of a stack of plies, and to blister-free composite materials fabricated therefrom. Fibrous plies are coated with a dry, particulate binder without impregnating the plies with the binder. Gaps between fibers/tapes allow air to diffuse out of the stack without affecting the binder coating, thereby avoiding blister formation.
Abstract:
A process for forming defect-free fibrous composite materials. More particularly, a process for forming blister-free fibrous composites without having to actively monitor or control blister formation during molding of a stack of plies, and to blister-free composite materials fabricated therefrom. Fibrous plies are coated with a dry, particulate binder without impregnating the plies with the binder. Gaps between fibers/tapes allow air to diffuse out of the stack without affecting the binder coating, thereby avoiding blister formation.
Abstract:
An apparatus and method for evaluating the backface signature of flat panel ballistic resistant composites with accuracy, repeatability and improved correlation to the expected backface signature of shaped ballistic resistant composites in actual field use.