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ISSN: 1820-0206 First published in 1950
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doi:10.5937/str2201048T Vol. 72, No.1(2022), Pages: 48-54
Numerical Analysis
of Initiation of Main Explosive Charge in an Artillery Projectile
Stefan Tomić
The importance of
investigation of main explosive charge initiation using booster
charge stems directly from the objective to optimize the mass of
booster charge needed to ensure steady state detonation of main
explosive charge in order to achieve maximum projectile efficiency.
Considered configuration consists of two explosives and three metal
parts which represent elements of fuze and projectile. The main
objective of this paper is to develop a numerical model of
initiation of main explosive charge of an insensitive artillery
ammunition. Through this research two variants of detonation point
location were analyzed, ideal and stochastic one. The effects of the
detonation transfer are analyzed using the Jones-Wilkins-Lee and
Ignition and Growth equation of state models for explosives,
applying the Coupled Eulerian-Lagrangian approach in the
Abaqus/Explicit software. Analytical computation is introduced in
this paper with a purpose to present P-u interaction between
configuration elements and for comparison with results obtained by
numerical method. The results of analytical and numerical approach
are presented and discussed in detail. It is shown that suggested
numerical model enables simulation and optimization of explosive
train in fuzes of HE projectiles.
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