Quantity of explosion products and isentropic characteristics of detonation products of industrial explosives

1989 ◽  
Vol 25 (2) ◽  
pp. 252-256
Author(s):  
A. F. Shatsukevich
Keyword(s):  
Detonation Products ◽  
Explosion Products

scholarly journals On Possibility of Detonation Products Temperature Measurements of Emulsion Explosives

2014 ◽  
Vol 59 (3) ◽  
pp. 1151-1154
Author(s):  
V. V. Silvestrov ◽  
S. A. Bordzilovskii ◽  
S. M. Karakhanov ◽  
A. V. Plastinin
Keyword(s):  
Optical Signal ◽  
Optical Pyrometer ◽  
Detonation Pressure ◽  
Emulsion Explosive ◽  
Detonation Products ◽  
Emulsion Explosives ◽  
Explosion Products ◽  
The Matrix ◽  
First Time ◽  
Detonation Temperature

Abstract The new view on the structure of the radiance signal recorded by optical pyrometer and the preliminary results of brightness detonation temperature of the emulsion explosive are presented. The structure of an optical signal observed is typical for the heterogeneous explosives. First, there is the short temperature spike to 2500 ÷ 3300 K connecting with a formation of “hot spots” assembly that fire the matrix capable of exothermal reaction. Then the relaxation of radiance to equilibrium level is observed that corresponds to brightness temperature 1840 ÷ 2260 K of explosion products at detonation pressure 1 ÷ 11 GPa. Experimental results are compared with the calculations of other authors. The detonation temperature of the investigated explosive is measured for the first time.

scholarly journals Experimental and Numerical Research in Explosive Loading of Two- and Three-Component Solid Mixtures

2013 ◽  
Vol 16 (1) ◽  
pp. 3 ◽  
Author(s):  
O.V. Ivanova ◽  
S.A. Zelepugin ◽  
A.S. Yunoshev ◽  
V.V. Sil’vestrov
Keyword(s):  
Axial Direction ◽  
Explosive Loading ◽  
Detonation Products ◽  
Explosive Compaction ◽  
Explosion Products ◽  
Joint Deformation ◽  
Numerical Research ◽  
Cylindrical Steel ◽  
Recovery Ampoule ◽  
Explosive Layer

We have conducted experimental and numerical research in two- and three-component solid mixtures placed into a cylindrical recovery ampoule under explosive loading. Behavior of the mixture is described by a mathematical model of a multicomponent medium. In the model, every component of a mixture simultaneously occupies the same volume as the mixture. Components interact with each other, exchanging momentum, energy, and mass (if the chemical reaction between the components occurs). An equality of components’ pressure is chosen as a condition for joint deformation of components. Finite element method is used for solving the problems. We considered experimentally and numerically explosive loading of the<br />aluminum-sulfur mixture, and explosive compaction of the aluminum-sulfur-carbon mixture in a cylindrical steel ampoule. The inert substance (graphite) was added to the mixture to avoid the reaction between aluminum and sulfur. Most of the focus is on simulating the action of explosion products on the ampoule.<br />In the computations the actions of the detonation products surrounding the ampoule was simulated by the action of pressure on the upper part of the ampoule in a vertical (axial) direction and on the lateral surface of the ampoule in a horizontal (radial) direction. We varied the thickness of the explosive that acts on the upper part of the ampoule in the axial direction in order to study the influence of the parameter on a final shape and size of the ampoule. We founded the essential influence of the thickness of the explosive layer on the final result of explosive compaction. Insufficient thickness of explosives, as well as the excessive thickness may be a reason for an incompletely compacted final product or lead to the formation of cracks or damage.<br /><br />

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.

Molecular dynamics and kinetic study of carbon coagulation in the release wave of detonation products

2012 ◽  
Vol 136 (8) ◽  
pp. 084506 ◽  
Author(s):  
Guillaume Chevrot ◽  
Arnaud Sollier ◽  
Nicolas Pineau
Keyword(s):  
Molecular Dynamics ◽  
Kinetic Study ◽  
Detonation Products ◽  
Release Wave

scholarly journals The measured temperature and pressure of EDC37 detonation products

2017 ◽  
Author(s):  
J. W. Ferguson ◽  
J. C. Richley ◽  
B. D. Sutton ◽  
E. Price ◽  
T. A. Ota
Keyword(s):  
Measured Temperature ◽  
Detonation Products ◽  
Temperature And Pressure

Investigation of the state of explosion products behind the shock wave

1961 ◽  
Vol 8 (1) ◽  
pp. 323-328
Author(s):  
O.A. Tsukhanova
Keyword(s):  
Shock Wave ◽  
The State ◽  
Explosion Products

Determination of the limits of applicability of the chemical equilibrium model to the detonation products of gas mixtures

2010 ◽  
Vol 4 (6) ◽  
pp. 969-976 ◽  
Author(s):  
U. F. Bryakina ◽  
S. A. Gubin ◽  
A. M. Tereza ◽  
V. A. Shargatov
Keyword(s):  
Chemical Equilibrium ◽  
Equilibrium Model ◽  
Gas Mixtures ◽  
Detonation Products ◽  
Chemical Equilibrium Model

Equation of state for the detonation products of energetic materials

2021 ◽  
Vol 11 (8) ◽  
pp. 1269-1287
Author(s):  
Xiangyu Huo ◽  
Li Zhang ◽  
Mingli Yang
Keyword(s):  
Artificial Intelligence ◽  
High Pressure ◽  
Computer Simulations ◽  
Energetic Materials ◽  
Equations Of State ◽  
Experiment Study ◽  
Detonation Products ◽  
Main Approach ◽  
Practical Applications ◽  
Integrated Theory

Energetic materials (EMs) are one of the necessities in many military and civilian applications. Measuring the thermodynamic behaviors of detonation products of EMs at high temperature and high pressure, their equations of state (EOSs) not only serve as a basis in the design of novel materials, but also provide valuable information for their practical applications. The EOS study has a long history, but keeps moving all the time. Various EMs have been developed, the EOS of detonation products provides abundant information in the thermochemistry, hydromechanics and detonation physics, which in turn feedbacks the development of novel EMs and their EOSs. With the development of experimental techniques and computer simulations, many EOSs have been proposed for various explosives in recent years. While experiments keep their fundamental roles, integrated theory-experiment study has become the main approach to the EOS establishment for novel EMs. Moreover, computer simulations based on interatomic and/or intermolecular interaction will have great potential in the future when big data and artificial intelligence are introduced into the field.

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