A method for estimating the armor-piercing capability of dense fragments

Abstract

The invention discloses a dense fragment penetration ability estimation method, belongs to a projectile armor-piercing effect simulation method, and solves the problem of lack of a calculation method during penetration of a fragment cluster to a protective structure in an existing projectile armor-piercing effect simulation method. The dense fragment penetration ability estimation method is used for guiding bullet-proof property design of the protective structure under the penetration of dense fragments formed after short-distance explosion of missile warheads. The estimation method comprises a step of establishing a finite element model of penetration of the fragment cluster to the protective structure, a step of judging a penetration state of the protective structure, a step of determining penetration equivalent fragments and a step of determining non-penetration equivalent fragments. The estimation method can realize calculation for making dense fragment penetration ability equivalent to single fragment penetration ability quickly, simply and conveniently, and provide theoretical guidance for taking a load of the fragment cluster as a damage design load during design of the protective structure under the short-distance explosion of the warheads, thereby having a practical value.

Description

technical field [0001] The invention belongs to a method for simulating the armor-piercing effect of projectiles, in particular to a method for estimating the armor-piercing ability of dense fragments, which is used to guide the anti-ballistic performance design of the protective structure under the penetration of dense fragments formed after the close-range explosion of a missile warhead. Background technique [0002] Shock waves and fragments are the main means of killing targets by conventional weapons. Due to the rapid attenuation of the intensity of the shock wave during propagation, its killing range is very limited; the fragments can still achieve damage to the target such as mechanical effects and ignition and detonation effects after long-distance flight. Fragments to achieve maximum damage to the target, including enhancing penetration capabilities, increasing the killing area, improving hit accuracy, etc., and correspondingly designed various conventional warheads...

AI Technical Summary

Problems solved by technology

[0007] The present invention provides a method for estimating the armor-piercing ability of dense fragments, which solves the problem that the existing simulation method of projectile armor-piercing action can only calculate the penetration ability of a single fragment to a protective structure, and lacks a calculation method for the penetration ability of a group of fragments to a protective structure. To provide theoretical guidance for the protection structure of the warhead under near-explosion with the fragment group load as the damage design load

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