摘要:
The invention relates to a preformed sheet comprising mono-layers from a fibrous network with fibers having a tensile strength of at least about 1.2 GPa and preferably a binder, and a separating film on at least one of its outer surfaces, the separating film having an areal density of between 1 and 10 g/m2 and a surface tension of less than 35 mN/m at the surface faced to the fibrous network and the separating film has a crystallinity of between 50 and 90%.
摘要:
The present invention relates to a flexible, breathable, anti-penetration fabric, made of antiballistic yarns, partially o wholly impregnated with one or more polymer resins, having a positive coefficient of expansion and hardness greater than 75 Sh D. The structure obtained by the process according to the present invention provides transpiration qualities which make the protections realized with this structure particularly comfortable.
摘要:
Structures based upon periodic cellular materials that provide a potential for defeating combinations of both air blast loading and ballistic attack either sequentially or simultaneously, or combination of both. The cellular structures may also be configured to meet the stiffness and strength support requirements of particular vehicle or other applications, systems or structures. The armor is therefore potentially able to support normal service loads and defeat blast and ballistic threats when necessary. The structure provides for using efficient load support capabilities of the material (without a high armor protection level) in low threat conditions, as well as the ability to modify the system to increase its level protection to a desired or required level. This would reduce the weight of the protection system in normal (low threat) conditions which reduces vehicle wear and tear, as well as cost savings in fabrication of applicable structures or systems.
摘要:
The invention relates to ballistic resistant article having a multilayered material sheet which includes a consolidated stack of unidirectional monolayers of drawn polymer, whereby the draw direction of two subsequent monolayers in the stack differs. At least one monolayer comprises a plurality of unidirectional tapes of the drawn polymer, aligned in the same direction, whereby adjacent tapes do not overlap. The invention also relates to a process for the preparation of the multilayered material sheet, and to a ballistic resistant article comprising the multilayered material sheet.
摘要:
Implementations described and claimed herein provide a personal tactical system configured to be worn by an individual for protection against threats. In one implementation, the personal tactical system includes one or more internal components disposed in an interior formed by an outer layer and an inner layer. The internal components include a flexible body armor, a ballistic plate, a ballistic frame, and/or a ballistic plate cover.
摘要:
A ballistic resistant article includes at least one consolidated composite, wherein the at least one consolidated composite includes a layer A and a layer B bonded to one another. Each layer A and B exhibitsa first surface,a second surface opposite to the first surface, anda cross-section extending from the first surface to the second surface and includes a network of fibers having a strength of at least 800 mN/tex (1100 MPa), and the fibers in each layer A and B are impregnated with a matrix material. The matrix material is distributed along the cross-section of each layer in a concentration gradient in which the concentration starts with a maximum value on the first surface, decreases along the cross-section and reaches a minimum value on the second surface. The matrix material includes a mixture of a polychloroprene, and a random copolymer of vinyl chloride and an acrylic ester.
摘要:
A method of protecting a user from a strike by a maximum threat includes adhesively bonding a plurality of solid elements to a support structure in a planar array, dimensions and material properties of the solid elements, support structure, and adhesive being selected to cause an impacted solid element to be dislodged by the maximum threat, and to combine its mass with the projectile for reduced velocity and increased impact area. The support structure is configured to fail in tensile and to allow the combined projectile and solid element to pass through the support structure. The solid elements can be ceramic, and can be commutated upon impact while remaining substantially intact. The solid elements can include titanium backing layers. After formation, ceramic cores can be compressed upon cooling by an outer ceramic layer having a higher coefficient of thermal expansion, the outer layer being formed by glazing or doping.
摘要:
A composite liner includes first and second basalt fabric layers with at least one of the first and second basalt fabric layers formed from woven basalt fibers. The composite liner further includes a core positioned between the first and second basalt fabric layers, where the first and second basalt fabric layers are secured to the core.
摘要:
A product sheet of composite material can be made by disposing composite materials of composite material in adjacent (side-by-side) relation with each other. The composite materials comprise fibers in a thermoplastic matrix material. The adjacent composite materials are bonded together to provide a product sheet of composite material. Preferably, a cross ply of composite material is disposed on the composite materials. The cross ply may be a unidirectional sheet and the fibers in the cross ply may be disposed in transverse relation to the fibers in the composite materials.
摘要:
The invention relates to a material sheet comprising a woven fabric of polymer tapes, wherein the width of a tape varies less than 2% on average in the longitudinal direction of the tape. The invention also relates to a process for the preparation of the material sheet, and to a ballistic resistant article comprising the material sheet. A ballistic resistant article comprising the material sheet exhibits excellent antiballistic properties.