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Comparative Analysis of the Effects of Gunpowder and Plasma Ignition in Closed Vessel Tests

R. TREBINSKI, Z. LECIEJEWSKI, Z. SURMA, J. MICHALSKI

Abstract


This paper presents the results of a comparative investigation into the effects of the ignition method on the ballistic properties of a single-base gun propellant, as determined via closed vessel tests. Conventional gunpowder ignition and plasma jet ignition methods were used. The influence of the ignition method on the dynamic vivacity is discussed. It is shown that this influence is significant in the first phase of the combustion process but in the second phase the dynamic vivacity plots converge. Regarding the burning law, close values of the exponent were obtained for the two ignition methods. The dynamic vivacity plots determined for plasma ignition reveal stronger dependence on the loading density than those determined for gunpowder ignition. The conclusion is that plasma ignition is not a solution to the problems inherent to the process of determining the ballistic properties of propellants, which burning process deviates from the geometric burning law.


DOI
10.12783/ballistics2019/33036

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