Equation of state and isentropy of the detonation products of typical condensed explosives

1982 ◽  
Vol 18 (1) ◽  
pp. 98-101 ◽  
Author(s):  
V. M. Kuznetsov ◽  
N. M. Kuznetsov ◽  
A. F. Shatsukevich
Keyword(s):  
Equation Of State ◽  
Detonation Products ◽  
Condensed Explosives

scholarly journals Equations of state for detonation products of explosives

2021 ◽  
pp. 1-38
Author(s):  
Viktor Vasilievich Val'ko ◽  
Oleg Petrovich Obraz ◽  
Vladimir Anontol’evich Gasilov ◽  
Valentina Sergeevna Solovyova ◽  
Nikita Olegovych Savenko
Keyword(s):  
Comparative Analysis ◽  
Equation Of State ◽  
Equations Of State ◽  
Mechanical Action ◽  
Multicomponent Mixtures ◽  
Detonation Products ◽  
Thermal Equation ◽  
Explosion Products ◽  
Condensed Explosives ◽  
Gasdynamic Problems

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.

Electrical stability of detonation products of condensed explosives

1978 ◽  
Vol 19 (3) ◽  
pp. 315-318 ◽  
Author(s):  
P. I. Zubkov ◽  
L. A. Luk'yanchikov ◽  
Yu. V. Ryabinin
Keyword(s):  
Electrical Stability ◽  
Detonation Products ◽  
Condensed Explosives

Equation of State of Detonation Products Based on Chemical Equilibrium

2013 ◽  
Vol 790 ◽  
pp. 61-64
Author(s):  
Yan Hong Zhao ◽  
Hai Feng Liu ◽  
Wei Wei Pang
Keyword(s):  
Equation Of State ◽  
Chemical Equilibrium ◽  
Hard Sphere ◽  
Gaseous Detonation ◽  
Mixed System ◽  
Variation Theory ◽  
Condensed Phases ◽  
Equilibrium Equations ◽  
Detonation Products ◽  
Minimization Principle

An equation of state (EOS) model of detonation products based on chemical equilibrium is developed. The EOS of gaseous detonation products is described by Rosss modification of hard-sphere variation theory and the improved one-fluid van der Waals mixture model. The condensed phases of carbon are taken as a mixture of graphite, diamond, graphite-like liquid and diamond-like liquid. For a mixed system of detonation products, the free energy minimization principle is used to determine the equilibrium compositions of detonation products by solving chemical equilibrium equations. The potential function parameters have been renewed and the non-ideal fixing effects of the major detonation products have been taken into account. The calculated detonation parameters in our work for a variety of explosives are well in agreement with the experimental data.

An equation of state applicable to gases at densities near that of the solid and temperatures far above the critical

1952 ◽  
Vol 213 (1113) ◽  
pp. 214-225 ◽  
Keyword(s):  
Equation Of State ◽  
High Pressures ◽  
Sharp Decrease ◽  
Temperature Characteristic ◽  
Hydrodynamic Theory ◽  
Molecular Volume ◽  
Pentaerythritol Tetranitrate ◽  
Condensed Explosives ◽  
Steep Potential Well ◽  
Good Agreement

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.

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