scholarly journals DETONATION PROPERTIES OF CONDENSED EXPLOSIVES CALCULATED WITH AN EQUATION OF STATE BASED ON INTERMOLECULAR POTENTIALS

1962 ◽  
Author(s):  
W Fickett
Shock Waves ◽  
2001 ◽  
Vol 11 (2) ◽  
pp. 105-114 ◽  
Author(s):  
S.B. Victorov ◽  
S.A. Gubin ◽  
I.V. Maklashova

It is suggested that, at high pressures and temperatures far above the critical, the intermolecular interaction is predominantly repulsive. The effect on a molecule of its neighbours is therefore replaced by an infinitely steep potential well of volume related to the molecular volume. This concept is used to write down the equation of state for such a gas. It is shown that this equation is likely to hold in the range of density and temperature characteristic of the detonation wave in condensed explosives. The equations of the hydrodynamic theory of detonation are developed in terms of this equation of state, and applied to pentaerythritol tetranitrate. The calculated dependence of detonation velocity on loading density is in very good agreement with experiment; the temperature shows a sharp decrease with increased loading density. This is a consequence of the intermolecular repulsive energy characteristic of the model chosen.


1982 ◽  
Vol 18 (1) ◽  
pp. 98-101 ◽  
Author(s):  
V. M. Kuznetsov ◽  
N. M. Kuznetsov ◽  
A. F. Shatsukevich

2021 ◽  
pp. 1-38
Author(s):  
Viktor Vasilievich Val'ko ◽  
Oleg Petrovich Obraz ◽  
Vladimir Anontol’evich Gasilov ◽  
Valentina Sergeevna Solovyova ◽  
Nikita Olegovych Savenko

A comparative analysis of the equations of state for the detonation products of condensed explosives, which are most used in solving problems of the mechanical action of an explosion, is presented. For the most widespread (cited) equations of state of explosion products in the form of JWL, methods and algorithms are proposed for determining the correctness of specifying the coefficients included in this equation. To solve radiation-gasdynamic problems, including multicomponent mixtures, a version of the thermal equation of state of explosion products in the form of JWL is proposed, and a constant set for the most common explosives is recommended.


Sign in / Sign up

Export Citation Format

Share Document