Multi-layer light bulletproof armor with composite structure

Abstract

The invention discloses a bulletproof armor of a multi-layer light composite structure. The bulletproof armor sequentially comprises a bullet facing layer, an energy absorption and shock absorption layer, a fiber buffer layer and a bulletproof back plate from outside to inside, and the gluing surfaces of the bullet facing layer and the fiber buffer layer are fabric layers. Wherein the bullet facing layer is a ceramic plate wound by PE fibers; the energy absorption and shock absorption layer is formed by alternately arranging ceramic plates wound by PE fibers and metal honeycomb plates filled with high-elasticity resin matrix composites, and the ceramic plates and the metal honeycomb plates are connected in a gluing mode; the fiber buffer layer is a multi-layer fiber fabric; and finally, the fabric is connected with the titanium alloy bulletproof back plate. The bullet-facing layer has good toughness, hardness and weather resistance, the problem that a bullet-facing layer of a traditional ceramic / backboard armor is fragile and prone to stripping is solved, and the energy-absorbing and shock-absorbing layer and the fiber buffer layer have good energy-absorbing and shock-absorbing effects while saving cost. The preparation process is simple, the problem of combination of composite interfaces of various heterogeneous materials is solved, and the bulletproof performance is good.

Description

technical field [0001] The invention relates to the technical field of composite material preparation and protection, and more specifically relates to a multi-layer lightweight composite bulletproof armor applied to military helicopters and chariots. Background technique [0002] Bulletproof armor can effectively absorb the kinetic energy of projectile shrapnel on the battlefield, and protect personnel and equipment from the erosion of projectile shrapnel, so it can increase the survival rate of personnel on the battlefield and reduce the damage rate of internal equipment. At this stage, with the advancement of weapons, the requirements for bulletproof armor are getting higher and higher. The traditional bulletproof ceramic-back plate structure can no longer meet the requirements of modern bulletproof armor. This is due to the high brittleness of the ceramic material. Although it can effectively reduce its kinetic energy when it is penetrated by projectile shrapnel, it is ea...

AI Technical Summary

Problems solved by technology

At this stage, with the advancement of weapons, the requirements for bulletproof armor are getting higher and higher. The traditional bulletproof ceramic-back plate structure can no longer meet the requirements of modern bulletproof armor.

This is due to the high brittleness of the ceramic material. Although it can effectively reduce its kinetic energy when it is penetrated by projectile shrapnel, it is easy to be damaged, cracked or even peeled off, and it is difficult to perform secondary bulletproof

In addition, the bonding strength between the ceramic and the backplane is low, and it is difficult to withstand multiple collisions

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