An evaluation method of explosive internal explosion power based on a prefabricated bar-shaped hole cylinder device

Abstract

The invention discloses an evaluation method of explosive internal explosion power based on a prefabricated bar-shaped hole cylinder device. According to the characteristics of explosion of anti-shipweapons and ammunition in cabin, based on a cylindrical test device as a carrier which simulates the explosion effect in ship cabin after the perforation of strip fragments, a data acquisition method,measuring point layout method and data processing method of characterization parameters of the power evaluation method are determined, and a power evaluation method of explosive internal explosion isestablished. At present, that evaluation method of the internal explosion power can only reflect the shock wave and the quasi-static pressure damage effect, and it is difficult to reflect the shock wave universally existing in the real scene. The invention can overcome the defect that the current evaluation method of the internal explosion power can only reflect the shock wave and the quasi-static pressure damage effect and the insufficiency of shock wave-fragmentation combined damage effect generally existing in a real scene cannot be reflected, the explosion effect of explosives in ship cabin structure is reflected comprehensively, which is helpful to evaluate the explosion power of anti-ship implosion weapon and ammunition more objectively and scientifically, and support explosives loading screening evaluation.

Description

technical field [0001] The invention belongs to the technical field of damage evaluation, and mainly relates to an evaluation method of explosive internal explosion power, in particular to an evaluation method of explosive internal explosion power based on a prefabricated strip-shaped hole cylinder device. Background technique [0002] The power evaluation of ammunition is a key link in the development and application of ammunition. It is necessary to comprehensively evaluate the power of ammunition according to the various damage parameters of the ammunition. The evaluation method of ammunition explosion power in open space is relatively mature, and the power parameters such as shock wave overpressure, impulse and fragment velocity and distribution are usually selected as indicators for evaluation. Due to space constraints, the explosion law of ammunition in a closed structure such as a cabin is very different from that in an open space. On the one hand, due to the reflect...

AI Technical Summary

Problems solved by technology

These evaluation methods mostly consider the shock wave effect, lack the evaluation method of explosive internal explosion power that integrates multiple damage methods, and do not consider the shock wave-fragment composite damage effect of anti-ship ammunition in real application scenarios, resulting in the existing evaluation methods. The characterization parameters can only reflect the damage effect of shock wave and quasi-static pressure, but fail to reflect the shock wave-fragment composite damage effect of ammunition, so it is difficult to fully and effectively reflect the real internal explosion power of anti-ship weapon ammunition

[0005] Therefore, the deficiencies and defects of the prior art are: lack of comprehensive consideration of the shock wave effect, quasi-static pressure effect and shock wave-fragment composite damage effect of the anti-ship weapon ammunition explosion in the ship cabin, objectively and comprehensively reflect the internal characteristics of the anti-ship weapon ammunition. Evaluation Method of Explosive Power

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