Burster block of composite structure and manufacturing method of burster block

Abstract

The invention relates to a burster block of a composite structure and a manufacturing method of the burster block. The burster block comprises a protection layer, a ceramic layer, an energy absorption layer and a supporting layer, wherein the protection layer, the ceramic layer, the energy absorption layer and the supporting layer are sequentially stacked from outside to inside and bonded together through bonding agents. The surface density of the whole block is 50-80 kg / m<2>. The supporting layer is a fiber metal composite material laminated plate which is formed by alternately applying at least three metal plates and at least two layers of fiber prepreg in a combined mode. According to the burster block of the composite structure, the fiber metal composite material laminated plate serves as the supporting layer, shock resistance and multi-hit resistance of the fiber metal composite material laminated plate are far superior to those of a pure fiber reinforced resin composite material laminated plate or a metal plate, good rigid supporting can be provided for the ceramic layer, the high hardness characteristic of ceramic is given into play, bullets are broken to the greatest extent, impact energy is dispersed, and the protection capacity is greatly improved. The burster block of the composite structure can be widely applied to the field of light bulletproof armors.

Description

technical field [0001] The invention relates to a bulletproof armor plate and a manufacturing method thereof, in particular to a composite structure bulletproof plate and a manufacturing method thereof. Background technique [0002] At present, the goal of high-performance bulletproof armor is to resist the greater velocity impact of projectiles at low areal density. Traditional ceramic composite bulletproof panels usually use hard ceramics as the face plate and metal or fiber-reinforced resin composite materials with good toughness as the back plate. glued together. The traditional ceramic composite bulletproof plate uses the high strength and high hardness of the ceramic panel to force the projectile to deform and fragment when it hits, and then capture the fragments through the back plate. However, the traditional ceramic composite bulletproof board also has the following problems: ①Since the ceramic is a brittle material, when the bulletproof board is impacted by the p...

AI Technical Summary

Problems solved by technology

However, the traditional ceramic composite bulletproof board also has the following problems: ①Since the ceramic is a brittle material, when the bulletproof board is impacted by the projectile at high speed, the ceramic board is used as the direct surface to face the bullet, and the ceramic board is prone to cracking and falling off after being impacted by the projectile, resulting in The bullet-proof board fails, which affects its ability to resist multiple hits; ②When the bullet-proof board is impacted by bullets at high speed, the fiber fabric in the fiber-reinforced resin composite backplane absorbs energy and deforms, and the joint with the ceramic board cracks, making the ceramic board Loss of support leads to decreased ballistic performance

If metal is used as the back plate, the weight of the bulletproof plate will increase, and the deformation ability will be weak when hit by projectiles, and the support effect on the panel will be poor, which will affect the overall bulletproof ability of the composite plate

[0003] For example, U.S. Patent No. 3,859,892 discloses a composite ceramic armor plate, which uses ceramics as a panel and a glass fiber laminate as a backboard; The panel is difficult to keep its shape intact and cannot continue to provide protection for the user, which affects the ballistic performance of the composite armor plate

Chinese patent CN204007335U discloses a composite soft armor with ultra-high strength, flexibility and light weight, including a bulletproof layer and a bottom plate, which is characterized in that a corundum ceramic layer and a high-density fiber layer are sequentially arranged between the bulletproof layer and the bottom plate from top to bottom. and a high-toughness ceramic layer, the high-density fiber layer is an inorganic fiber material layer containing air gaps after high-pressure shaping, the high-toughness ceramic layer is a zirconia-based ceramic, and the bottom plate is a metal hard armor material; although the energy of the bullet It is mainly absorbed through the ceramic layer, but due to the high density of zirconia ceramics (6.0g / cm 3 ), resulting in the overall weight of the armor plate, and under the high-speed impact of the bullet, it is difficult for the metal layer bottom plate to provide good support, thus affecting the ballistic performance of the composite armor

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