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A multi-component composite toughened bionic structural armor and its preparation method

A multi-component compounding and toughening technology, which is applied in the direction of chemical instruments and methods, layered products, metal layered products, etc., can solve the problems of high density and low armor protection ability of light weight, and achieve the solution of compounding of heterogeneous materials, Ensure rationality and scientificity, improve the effect of protection ability

Active Publication Date: 2021-03-05
AVIC BEIJING AERONAUTICAL MFG TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the problems of high density of steel plate armor and low protection ability of light armor, the inventor found that the sea turtle shell is a typical composite structure of multi-layer materials through in-depth analysis and analysis of the macro-micro structure of biological materials such as sea turtle shells. , the outer layer is similar to layered composite material composed of mineral and organic matter, the second outer layer is similar to fiber reinforced composite material, and the inner layer is similar to foam material, but the cavity is filled with organic matter
Based on this discovery, the present invention proposes to use titanium alloy, fiber, aluminum alloy and other material units to imitate the macro and micro structure of sea turtle shells, and designs a multi-component composite toughened bionic new structural armor, which solves the problem of lightweight armor Composite problems between multi-layer material units, thus improving the protection ability of armor

Method used

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  • A multi-component composite toughened bionic structural armor and its preparation method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Test materials: high-purity titanium foil thickness 30um, high-purity titanium foil thickness 100um, high-purity aluminum foil thickness 30um, SiC fiber, titanium alloy honeycomb, energy-absorbing and shock-absorbing high-elastic resin-based composite material; armor length and width are 100mm, The thickness is 30mm.

[0034] The specific implementation steps are as follows:

[0035] Step 1. First, surface-treat the high-purity titanium foil and aluminum foil, clean them, and then cut the titanium foil and aluminum foil into 100mm×100mm squares;

[0036] Step 2: Cut the SiC fiber into 100mm×100mm cubes after being wound by an automatic winding machine; a layer of transition metal can be deposited on the surface of the reinforcing fiber by means of magnetron sputtering, and then the fiber is wound by a fiber winding machine.

[0037] Step 3. Stack titanium foil (30um), aluminum foil (30um), titanium foil (100um), SiC fiber, titanium foil (100um) and aluminum foil (30um)...

Embodiment 2

[0043] Test materials: high-purity titanium foil thickness 50um, high-purity titanium foil thickness 100um, high-purity aluminum foil thickness 50um, SiC fiber, titanium alloy honeycomb, energy-absorbing and shock-absorbing resin-based composite materials; armor length and width are 100mm, and thickness is 30mm. The thickness of the high-purity titanium foil and aluminum foil used in step 1 was changed to 50um, and the remaining specific implementation steps were the same as in Example 1.

Embodiment 3

[0045] The thickness of high-purity titanium foil is 100um, the thickness of high-purity titanium foil is 100um, the thickness of high-purity aluminum foil is 70um, SiC fiber, titanium alloy honeycomb, energy-absorbing and shock-absorbing resin-based composite materials; the length and width of the armor are 100mm, and the thickness is 30mm. The high-purity titanium foil used in step 1 was changed to 100um and the thickness of the aluminum foil was changed to 70um, and the rest of the specific implementation steps were the same as in Example 1.

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Abstract

The invention relates to a multi-component composite toughened bionic structural armor and a preparation method thereof. The armor is a three-layer composite structure. The upper and lower layers are mixed layers of superhard intermetallic compound layers and fiber-reinforced composite material layers. Floor. The upper layer and the lower layer are obtained by sintering the prefabricated body made of titanium foil, aluminum foil, titanium foil, fiber-reinforced composite material layer, and titanium foil layer by layer; Shock-absorbing resin-based composite materials obtain the armor. It uses a variety of material systems tough and hard composites, similar materials as the matrix, and a rigid constrained structure of honeycomb-wrapped energy-absorbing and shock-absorbing resin-based composite materials, which not only ensures the scientific nature of the overall structure, but also solves the problem of difficult compounding of heterogeneous materials. Improved armor protection.

Description

technical field [0001] The invention relates to a multi-component composite toughened bionic structural armor and a preparation method thereof, belonging to the technical field of metal matrix composite materials. Background technique [0002] Regarding the upgrading of armed helicopters, in addition to improving their weapons and equipment, it is also necessary to improve their body's anti-bullet capability to improve their battlefield survivability. For this reason, the key parts of modern armed helicopters, such as the bottom of the helicopter, around the cockpit, the fuel tank, the side walls of the cabin, and the wings, have adopted new protective materials. For example, the American AH-64 "Apache", its fuselage, cockpit, rotor, fuel tank and transmission system are all made of composite materials, which can ensure that the helicopter can continue to fly for 30 minutes after being hit by a 12.7mmAMP bomb and a 23mmHEIT bomb. Above, the helicopter can safely withdraw fr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B15/20B32B15/14B32B15/08B32B3/12B32B33/00
CPCB32B3/12B32B15/08B32B15/14B32B15/20B32B33/00B32B2307/56
Inventor 徐严谨侯红亮赵冰王耀奇
Owner AVIC BEIJING AERONAUTICAL MFG TECH RES INST
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