Calculation of the Detonation Properties of Solid Explosives with the Kistiakowsky-Wilson Equation of State
- 1 May 1956
- journal article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 24 (5) , 932-939
- https://doi.org/10.1063/1.1742718
Abstract
The Kistiakowsky‐Wilson equation of state, pVg = RT(1+xeβx), where x = k/Vg(T+θ)α, for the gaseous detonation products of solid explosives has been re‐examined in the light of new experimental data on detonation pressure and on the variation of detonation velocity D with loading density ρ0 for several RDX/TNT mixtures. The value β = 0.30 used in the past is too high to match the observed slopes of the D—ρ0 curves. The old value α = 0.25 is too small to match the experimental Chapman‐Jouguet pressure of most of these explosives, but too large to match the pressure of pure TNT. A suitable compromise for the explosives considered is α = 0.5, β = 0.09, θ = 400°K.Keywords
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