Pin-type load-bearing/protection integrated high-strength polyethylene composite armored bulkhead structure

Abstract

The invention relates to a pin-type load-bearing/protection integrated high-strength polyethylene composite armored bulkhead structure which is composed of a sandwich plate and a hat-shaped reinforcing rib. The sandwich plate is composed of a front panel, a cushioning insulation layer, a high-strength polyethylene fiber ballistic layer, an energy-absorbing insulation layer, a back panel and a restriction fiber nail. The front panel and the rear panel are arranged on both sides of the sandwich plate to provide the required rigidity and strength of the structure and a certain high-speed fragmentpenetration resistance; the buffer insulation layer and the energy absorbing heat insulation layer are located between the panel and the high-strength polyethylene fiber anti-ballistic layer, and areused for protecting the high-strength polyethylene fiber ballistic layer from the influence of high temperature. The high-strength polyethylene fiber ballistic resistant layer is used for resisting the penetration of high-speed fragments. the restraining fiber nail is used for penetrating the sandwich plate, improving the interlayer strength of the sandwich plate, reducing the interlayer failureof the weak interface, so that the sandwich plate can give full play to the anti-penetration performance so as to more effectively resist the penetration of the high-speed fragments; the hat-shaped reinforcing rib is used for improving the strength and rigidity of the bulkhead structure.

Description

technical field [0001] The invention relates to a bulkhead structure of a superstructure of a ship, in particular to an integrated load-bearing / protective bulkhead structure for resisting high-speed fragments generated by the explosion of an anti-ship missile warhead. Background technique [0002] A large number of high-speed fragments produced after the explosion of the anti-ship missile warhead pose a huge threat to the safety of important equipment and personnel in the ship superstructure, and the armor protection of the superstructure has attracted increasing attention. The traditional superstructure of a ship is a steel structure with heavy weight and general impact resistance and energy absorption properties. Fiber-reinforced composite materials have many excellent properties such as low density, high specific stiffness, high specific strength, and strong impact resistance, as well as good designability, convenient molding, and excellent maintainability. Under the req...

AI Technical Summary

Problems solved by technology

The bonding strength between the high-strength polyethylene fiber reinforced material and the heat insulation material is a weak connection compared with the interlayer strength of the high-strength polyethylene fiber reinforced material board, and the shear strength of the weakly connected interface is low

In the case of high-speed fragment impact, the weak connection interface of the target plate is prone to failure, which reduces the overall protective performance of the bulkhead structure

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