Method for evaluating reaction intensity of ammunition with pressure relief structure based on reaction evolution model

Abstract

The invention discloses a reaction intensity evaluation method for ammunition with a pressure relief structure based on a reaction evolution model, relates to the technical field of ammunition, and aims at solving the problem of combustion reaction growth evolution calculation after the ammunition with a pressure relief channel is charged and accidentally ignited and solving the problems of reaction intensity control and quantitative evaluation of the ammunition under accidental stimulation such as high temperature and fire. According to the method, the combustion reaction growth evolution process after the ammunition with the pressure relief channel and the pressure relief hole is charged and ignited is modeled, and the growth history of the internal pressure, the reactivity and the like of the ammunition close to the actual state is quantitatively given, so that a shell internal pressure model and an ammunition charging substrate reactivity model are obtained, and finally the reaction intensity of the ammunition is obtained. The objective description of the reaction growth evolution behavior after the ammunition is charged and ignited is realized, a theoretical basis is provided for the design and reaction intensity control and quantitative evaluation of the ammunition with a pressure relief channel and a pressure relief hole, and the problems of reaction intensity control and quantitative evaluation of the ammunition under the accidental stimulation of high temperature, fire and the like are solved.

Description

technical field [0001] The invention relates to the technical field of ammunition, in particular to a reaction intensity evaluation method for ammunition with a pressure relief structure based on a reaction evolution model. Background technique [0002] During the whole life of ammunition, such as storage, transportation, or service, it is inevitable to encounter accidental thermal / mechanical stimuli such as drop, impact, fire, or long-term exposure to high-temperature environments, which will cause the ammunition charge to ignite and burn until it explodes or even turns to detonation. Non-shock ignition accident response with catastrophic consequences. The reaction evolution process of this non-shock ignition accident is very complex, affected by many factors such as the restraint structure strength, inertial restraint capacity, intrinsic intrinsic combustion characteristics of explosives, and crack development and evolution, and involves dynamic damage crack initiation, pr...

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention provides a reaction intensity evaluation method for ammunition with a pressure relief structure based on a reaction evolution model, aiming at the calculation problem of combustion reaction growth evolution calculation of ammunition charges with pressure relief channels and pressure relief holes after accidental ignition, to solve the problem of ammunition in the Response intensity control and quantitative evaluation problems under unexpected stimuli such as high temperature and fire

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