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Lightweight fiber/ceramic-based composite bulletproof structure

A ceramic-based composite and lightweight technology, which is applied to the structure of armor plates, protective equipment, armor, etc., can solve the problem of high structural thickness, achieve the effects of reducing projectile speed, avoiding interlayer shedding, and preventing back convexity

Active Publication Date: 2020-12-11
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention is to solve the shortcomings of the unreasonable structural design of the fiber / ceramic matrix composite bulletproof material, which leads to too high structural thickness and cannot meet the requirements of light weight, and provides a lightweight fiber / ceramic matrix composite bulletproof structure. The structure is simple to match, It can effectively combine the excellent protective properties of various materials. The obtained fiber / ceramic matrix composite bulletproof material has good protective performance. When it receives the impact of a projectile, it can effectively reduce the impact of the shock wave on the bulletproof main material, and reduce the penetration of the bulletproof structure. Phenomena such as excessive back convexity or interlayer separation

Method used

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  • Lightweight fiber/ceramic-based composite bulletproof structure

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Embodiment Construction

[0023] Further description will be given below by means of drawings and embodiments.

[0024] Such as figure 1 , 2 As shown, the lightweight fiber / ceramic matrix composite bulletproof structure of the present invention includes a bulletproof layer A, a buffer layer B, a transition layer C and a back bulletproof layer D; the bulletproof layer A is arranged on the lightweight fiber / ceramic matrix composite bulletproof structure The outermost side, the back elastic layer D is set on the innermost side of the lightweight fiber / ceramic matrix composite bulletproof structure, wherein, the anti-bullet layer A is alternately stacked with high-performance carbon fiber cloth 1 structural layers, and the back elastic layer D is hard aramid fiber Plate 6; the buffer layer B and the transition layer C are arranged between the bombardment layer A and the backball layer D, wherein the buffer layer B is arranged on the lower side of the bombardment layer A, which is a single-layer boron carb...

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Abstract

The invention relates to a lightweight fiber / ceramic-based composite bulletproof structure, and belongs to the field of equipment protection technologies and special material preparation. A bullet-facing layer, a buffer layer, a transition layer and a bullet-backing layer are sequentially installed to form the structure. The bullet-facing layer is formed by alternately stacking high-performance carbon fiber structure layers, and the bullet-backing layer is a hard aramid fiber plate. The buffer layer is a combined structure layer of single-layer boron carbide ceramic and UHMWPE fiber cloth, anda UHMWPE fiber cloth structure layer is arranged below the boron carbide ceramic. The transition layer is a combined structure layer of single-layer boron carbide ceramic and aramid fiber cloth, andan aramid fiber cloth structure layer is arranged on the lower side of the boron carbide ceramic. The light-weight fiber / ceramic-based composite bulletproof structure is simple in structural composition, has the remarkable advantage of light weight, can effectively reduce impact of impact waves on a bulletproof main body material when being impacted by bullets, and avoids the phenomena that the bulletproof structure is penetrated and layers are separated, and the back bulge phenomenon is not obvious.

Description

technical field [0001] The invention relates to a lightweight fiber / ceramic matrix composite bulletproof structure, which belongs to the field of equipment protection technology and preparation of special materials. Background technique [0002] Wars have never stopped since ancient times, and conflicts between countries and regions have never stopped. With the rapid development of society and economy, the international situation has become complex and changeable, and the continuous upgrade of weapons has taken a toll on the lives of soldiers. a greater threat. Human body bulletproof protective equipment has played a very good role in protecting the lives of soldiers. Bulletproof equipment requires materials that can absorb and dissipate the kinetic energy of warheads and fragments, prevent penetration, and effectively protect the protected parts of the human body. In order to reduce casualties and improve the combat capability of the army, protective materials must also be...

Claims

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Application Information

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IPC IPC(8): F41H5/04
CPCF41H5/04F41H5/0428
Inventor 刘吉平李年华
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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