Composite structure bulletproof armor capable of resisting machine gun ammunition penetration and manufacturing method thereof

Abstract

The invention discloses a composite structure bulletproof armor capable of resisting machine gun ammunition penetration and a manufacturing method thereof. The bulletproof armor is composed of a three-dimensional woven rigid spliced protection plate layer, a three-dimensional woven flexible protection plate layer, a spliced buffer layer and a carbon fiber three-dimensional woven overall frame. According to the composite structure bulletproof armor, a three-dimensional multidirectional fabric reinforced ceramic base body is adopted for manufacturing a frustum-shaped rigid ceramic spliced round sheet containing composite rigid armor layer, the rigidity of an ammunition bearing face can be effectively improved, the characteristics of large weight and high collapsing force of machine gun bullets are resisted, and meanwhile the ceramic composite formed by three-dimensional multidirectional fabric can effectively avoid the problem that the crack expansion range is large during one time of machine gun ammunition penetration. Meanwhile, through the alternately overlapping structure of rigid spliced plates and flexible protection plates, the rigid layer is utilized for resisting shot deformation, the flexible layer is utilized for consuming shot penetration energy, and the aim of consuming a large amount of kinetic energy of the heavy machine gun ammunition step by step is achieved.

Description

technical field [0001] The invention belongs to the field of protective equipment, and relates to a composite bulletproof armor for resisting the penetration of machine gun bullets and a preparation method thereof, in particular to an alternately combined composite bulletproof armor of inorganic / organic three-dimensional fabric reinforced composite materials and its preparation method and application . Background technique [0002] Although there are fewer opportunities for large-scale wars around the world, small conflicts characterized by international terrorism and internal riots continue to occur around the world. In order to resist such local conflicts, whether it is the police within the country or the soldiers dealing with international disputes, some kind of attack or action equipment is required in the combat process, and the application of helicopters or armored vehicles is particularly important. With the development of world peace, since the 1960s, countries aro...

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Problems solved by technology

[0004] Faced with this situation, the researchers began to experiment with non-metallic protective armor, and found through research that it is almost impossible to use a single material to prepare protective armor that can protect against heavy machine gun bullets. First of all, the hardness of the high-performance fiber composite material itself And the rigidity is not enough, the physical characteristics of the fiber itself make it like a mantis in the process of heavy machine gun bullet penetration; non-cermet materials have high hardness and rigidity, but when the heavy machine gun bullet penetrates, the overall fragmentation will occur , and cannot resist the destruction of consecutive projectiles

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