Multi-component toughened bionic structural armor and preparation method thereof

Abstract

The invention relates to a multi-component toughened bionic structural armor and a preparation method thereof. The armor is of three-layer composite structure, specifically, the upper layer and the lower layer of the structure refer to mixed arranged layers of ultra-hard intermetallic compound layer and fiber-reinforced composite layer, and the middle layer refers to an energy-absorbing and vibration-reducing layer formed by filling titanium honeycomb structure with high-elasticity resin-based composite material. Further, the upper layer and the lower layer are prepared by the steps of sequentially laminating titanium foil, aluminum foil, titanium foil, fiber-reinforced composite layer, titanium foil layer by layer sequentially gradually to obtain a preform and then sintering the preform;the armor is prepared by composing the upper layer and the lower layer with the titanium honeycomb structure, and then filling the titanium honeycomb structure with the energy-absorbing and vibration-reducing composite material. Since the rigid restraint structure that multiple material systems are utilized to achieve composition of toughness and hardness, similar materials are utilized as a matrix, and the honeycomb structure is filled with the energy-absorbing and vibration-reducing resin-based composite material is utilized, scientificity of the integral structure is guaranteed while the problem of difficulty in composition of heterogeneous materials is solved and protective capacity of the armor is improved.

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...

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

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