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Composite sandwich bulletproof structure

A technology of sandwich and core layer, applied in the direction of the structure of the armor plate, can solve the problems of poor penetration resistance and low strength, and achieve good energy absorption and shock absorption performance, high impact strength, and high fracture resistance. Effect

Pending Publication Date: 2018-05-18
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of low structural strength and poor penetration resistance of the composite bulletproof sandwich layer in the prior art, and provide a composite bulletproof sandwich structure

Method used

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  • Composite sandwich bulletproof structure
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  • Composite sandwich bulletproof structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Draw the model of the honeycomb negative Poisson's ratio structure 11, use TC4 titanium alloy powder as raw material, process and shape it by 3D printing technology, and inject polycarbonate into the pores of the formed honeycomb negative Poisson's ratio structure 11 to form a composite sandwich core Layer 1, the composite sandwich layer 1 is fixed between the boron carbide ceramic face plate and the UHMWPE fiber buffer backboard in the form of seamless bonding to form an overall composite sandwich bulletproof structure.

Embodiment 2

[0053] The preparation method is the same as in Example 1, except that thermoplastic polyurethane elastomer rubber (TPU) is injected into the pores of the formed honeycomb-type negative Poisson's ratio structure 11 .

Embodiment 3

[0055] The preparation method is the same as in Example 1, except that epoxy resin is injected into the pores of the formed honeycomb-type negative Poisson's ratio structure 11 .

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Abstract

The invention provides a composite sandwich bulletproof structure which comprises a composite sandwich layer. The composite sandwich layer is composed of a honeycomb-type negative Poisson ratio structure and an elastomer material which is filled into a gap of the honeycomb-type negative Poisson ratio structure. According to the composite sandwich bulletproof structure provided by the invention, low density, high shock strength, high break resistance and good energy absorption damping performance can be achieved under the mutual collaboration and promotion effects of the honeycomb-type negativePoisson ratio structure and the elastomer material filled into the gap of the honeycomb-type negative Poisson ratio structure; and the application prospects are broad on the aspects of explosion prevention, bullet prevention, light armor protection and the like.

Description

technical field [0001] The invention relates to the field of bulletproof structures, in particular to a composite sandwich bulletproof structure. Background technique [0002] Due to the advantages of light weight, high strength, multi-component integration, strong designability, low manufacturing cost, and short development cycle, composite bulletproof structures are more and more widely used in advanced manufacturing fields such as military industry. In recent decades, researchers at home and abroad have conducted a lot of research on light armor systems and their ballistic performance, focusing on the balance between protective equipment protection capabilities, maneuverability, and combat performance. The structure puts forward higher requirements. [0003] The common composite sandwich bulletproof structure is generally divided into a bullet-resisting panel, a composite sandwich layer and a buffer backplane. The penetration and penetration of the projectile to the com...

Claims

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Application Information

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IPC IPC(8): F41H5/04
CPCF41H5/0428Y02P10/25
Inventor 袁梦琦赵磊钱新明郭亚鑫孙彦龙
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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