Composite armor structure preventing blast waves

A composite structure and explosive wave technology, applied to the structure of armor plates, synthetic resin layered products, layered products, etc., can solve the problems of thick, expensive, and heavy-duty explosion-proof structures, and achieve improved explosion-proof performance, light weight, and The effect of improving the explosion-proof ability

Inactive Publication Date: 2015-07-22
ACADEMY OF ARMORED FORCES ENG PLA +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the existing explosion-proof technology either adopts large-deformation energy-absorbing materials or complex structures using the principle of reactionary force, resulting in the problem that the explosion-proof structure is generally very thick, heavy or expensive, and provides a metamaterial-based New explosion-proof composite structure

Method used

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  • Composite armor structure preventing blast waves
  • Composite armor structure preventing blast waves
  • Composite armor structure preventing blast waves

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] figure 2 A schematic structural diagram of Embodiment 1 of the present invention is shown. like figure 1 As shown, a new type of anti-explosion composite structure based on metamaterials includes metamaterial layer 1, bonding layer 2, and energy-absorbing buffer layer 3 from outside to inside. Wherein the metamaterial layer 1 is combined with the energy-absorbing buffer layer 3 through the bonding layer 2 . Wherein the metamaterial layer 1 is a microstructure composed of a metal-nonmetal sphere system. like Figure 5 As shown, the multiple microstructures are combined to form a metamaterial layer.

[0031] Preferably, the bonding layer 2 is water-soluble phenolic. The energy-absorbing buffer layer (3) includes Kevlar high-energy-absorbing material, ceramic brittle material, or a solid or hollow structure processed from honeycomb material or aluminum foam material. The physical parameters of Kevlar in the energy-absorbing buffer layer: the strength is 3.6 GPa, the...

Embodiment 2

[0052] Embodiment 2 is a further improvement on the basis of Embodiment 1. like image 3 As shown, a new type of anti-explosion composite structure based on metamaterials includes metamaterial layer 1, bonding layer 2, and energy-absorbing buffer layer 3 from outside to inside. The components of the above-mentioned three-layer structure are the same as those in Embodiment 1, and will not be further described.

[0053] Embodiment 2 further arranges an elastic plate 7 outside the metamaterial layer 1, and a plurality of metal springs are arranged between the elastic plate 7 and the metamaterial layer 1, and the metal springs are a multi-row structure, and each row is a plurality of .

[0054] As a preference, the elastic plate 7 can be of the same composition as the metamaterial layer, i.e. also made of Figure 5 The microstructural composition shown.

[0055] Of course, the present invention has developed a new elastic board 7, the weight ratio of each component in the elas...

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Abstract

The invention relates to a composite armor structure preventing blast waves. The composite armor structure comprises a metamaterial layer, a combining layer and an energy-absorption buffering layer in sequence from outside to inside. The metamaterial layer and the energy-absorption buffering layer are combined in an optimized mode through the combining layer. The metamaterial layer is of a microstructure composed of a metal-nonmetal sphere system and can block shock waves in the area near the peak overpressure value in blast waves. The microstructure composed of the metal-nonmetal sphere system comprises metal balls, elastic materials and base body materials, and the metal balls wrapped by the metal materials are embedded into the base body materials. The blast resistant structure can effectively block explosion shock waves and more easily absorb explosion pressure waves, and therefore the explosion proofing ability of the structure is improved.

Description

technical field [0001] The invention relates to an explosion-proof composite armor structure, in particular adopts a supermaterial microstructure unit, and belongs to the field of protection. Background technique [0002] In the past, the research on explosion-proof structures was mainly in two aspects. On the one hand, it was based on the significant effect of the material itself on energy absorption, that is, to use the principle of material deformation to absorb energy to study new materials; on the other hand, it was to use the principle of reactionary momentum to resist incoming explosion waves, designing complex structures. The design of these explosion-proof structures has taken into account that the explosion wave generated by the explosion of high-energy explosives has great energy and strong destructive power to the target, but they all consider the explosion wave generated by the explosion as a whole, and use the overpressure of the wave front to measure its Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F41H5/04B32B3/18B32B27/06B32B33/00
Inventor 李向荣王国辉钟孟春王成姚鎏段丰安苏忠亭吴晓颖
Owner ACADEMY OF ARMORED FORCES ENG PLA
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