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Tytuł:
Calculation of Thermochemical and Explosive Characteristics of Furoxanes
Autorzy:
Zhukov, I.
Kozak, G. D.
Powiązania:
https://bibliotekanauki.pl/articles/358541.pdf
Data publikacji:
2008
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
furoxanes
benzofuroxanes
high-power energetic materials
heat of detonation
detonation velocity
detonation pressure
Opis:
Search of high-power energetic materials is one primary line of development of chemical physics of combustion and explosion. Yield of such materials is usually very small, and its cost is very high. Calculation of unknown characteristics and properties is the only way out from this situation. There are different methods today that allow calculating unknown detonation performance and some of physicochemical properties. Examination of calculated detonation performance of furoxanes and benzofuroxanes compounds that are not enough investigated is presented in this work. These compounds are new high-power energetic materials. Influence of error in enthalpy of formation of these compounds on their detonation performance is also examined in this work. Furoxanes plays particular part among energetic materials. They are convenient blocks of molecules of high-power energetic materials. Joining of explosiphorus clusters of atoms are lead to obtaining of number of high-performance compounds. It is caused by flatten structure of furoxane ring, that lead to high density of compounds and are characterized by high and positive value of enthalpy of formation. Detonation performance of furoxanes was not study practically. That is why 10 furoxanes have been chosen as object of study (see Nomenclature). 7 of 10 studied furoxanes have anomalous elemental composition, because they are hydrogenfree. In order to evaluate possible error in computational detonation performance, explosive characteristics of 6 hydrogen-free energetic materials with known experimental data have been calculated.
Źródło:
Central European Journal of Energetic Materials; 2008, 5, 3-4; 45-54
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cast Porous Charges on a Base of Ammonium Nitrate-Urea Eutectic
Autorzy:
Litovka, O. B.
Kozak, G. D.
Chugreeva, E. Y.
Starshinov, A. V.
Powiązania:
https://bibliotekanauki.pl/articles/358034.pdf
Data publikacji:
2008
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
eutectic
ammonium nitrate
urea
fusion diagram
detonability
detonation velocity
Opis:
There are great number tasks of explosive technique, requiring the charges with low pressure and detonation velocity. Powerful tool of regulation of these parameters is lowering of charge density. The main goal of this work is elaboration of technology of manufacture and investigation of explosive properties of charges on a base of eutectic ammonium nitrate-urea mixtures (AN/UR) that have melting point T[m] < 100 C. The physicochemical properties of these mixtures were investigated by means of DSC method and fusion diagram of them was plotted. The composition AN/UR 80/20, that has Tm= 80-90 C was chosen for subsequent investigation. The molten composition was mixed with fine aluminum powder, portion of it was placed into paper tube. The level of a liquid was less than length of the tube. Crystallization of melted mixtures was carried out in vacuum chamber, the level of liquid increased at pumping because of expansion of air bubbles introduced with aluminum particles and reached the upper cork of tube. In such a way porous charges were formed. The dependence of charge density vs. population of tubes by melted mixtures was plotted. Calculated heat explosion of mixtures at content of aluminum Al = 10-15% is Qv = 4.5-5.3 MJ/kg, calculated detonation velocity at density ρ = 0.5-1 g/cm3 changes from D = 3.2 to 5.2 km/s. Detonability of charges was investigated experimentally. Failure diameter (df) of detonation was measured, it was df = 22 mm (ρ = 0.6-0.7 g/cm3) for charges without confinement at initiation by means of booster or blasting cap.
Źródło:
Central European Journal of Energetic Materials; 2008, 5, 2; 57-66
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Characterization of C-NO2 Bonds in Nitroaromatic Compounds: A Bond Disproportionation Approach
Autorzy:
Pexa, M.
Friedl, Z.
Powiązania:
https://bibliotekanauki.pl/articles/358691.pdf
Data publikacji:
2010
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
bond dissociation energy
bond disproportionation energy
nitro benzenes
nitro toluenes
detonation velocity
Opis:
Homolytic dissociation of C-NO2 bond represents the primary fssion process of nitroaromatic compounds under thermal, impact, shock and electric spark initiation stimuli. Homolytic bond dissociation energies BDE(C-NO2) describe the C-NO2 bond fssion. Theoretical calculations of BDEs are substantially infuenced by inadequate treatment of electron correlation. Recently the alternative method was suggested to overcome this substantial drawback – an isodesmic reaction RC-NO2 + SC-H → RC-H + SC-NO2 where SC-NO2 is standard nitroaromatic compound. This reaction is characterized by bond disproportionation energy DISP(C-NO2), which inherently cancels the electron correlation effect accompanying homolytic bond dissociation energies. The bond disproportionation energies DISP(C-NO2) and bond dissociation energies BDE(C-NO2) were evaluated for 11 nitro benzenes and 19 nitro toluenes at DFT B3LYP/6-311+G(d,p) level and correlated with their detonation velocities, D, and with charge of the most reactive nitro group, Q(NO2).
Źródło:
Central European Journal of Energetic Materials; 2010, 7, 2; 131-144
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pomiar prędkości detonacji MW w otworze strzałowym z zastosowaniem aparatury MicroTrap
Measurement the velocity of detonation of an explosive placed in the borehole, using apparatus MicroTrap
Autorzy:
Batko, P.
Pyra, J.
Powiązania:
https://bibliotekanauki.pl/articles/350046.pdf
Data publikacji:
2010
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
prędkość detonacji
materiały wybuchowe
velocity of detonation
explosives
Opis:
W artykule krótko omówiono najważniejsze czynniki wpływające na jeden z najważniejszych parametrów charakteryzujących materiały wybuchowe, a mianowicie na prędkość detonacji. Przedstawiono również sposób pomiaru prędkości detonacji materiału wybuchowego umieszczonego w otworze strzałowym, z wykorzystaniem aparatury pomiarowej MicroTrap.
The article briefly discusses some factors affecting one of the most important parameters characterizing the explosives, namely the velocity of detonation. Also demonstrates how to measure the velocity of detonation of an explosive placed in the borehole, using the measuring apparatus MicroTrap.
Źródło:
Górnictwo i Geoinżynieria; 2010, 34, 4; 57-66
1732-6702
Pojawia się w:
Górnictwo i Geoinżynieria
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Some Perspectives on Estimating Detonation Properties of C, H, N, O Compounds
Autorzy:
Politzer, P.
Murray, J. S.
Powiązania:
https://bibliotekanauki.pl/articles/358498.pdf
Data publikacji:
2011
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
detonation velocity
detonation pressure
density
enthalpy of formation
detonation product composition
explosives
Opis:
We have explored various aspects of the Kamlet-Jacobs equations for estimating detonation velocities and pressures. While the loading density of the explosive compound is certainly an important determinant of these properties, its effect can sometimes be overridden by other factors, such as the detonation heat release and/or the number of moles of gaseous products. Using a gas phase rather than solid phase enthalpy of formation in obtaining a compound's heat release can produce a signifcant error in the calculated detonation velocity. However a negative enthalpy of formation is not necessarily incompatible with excellent detonation properties. Additional evidence is presented to support Kamlet and Jacobs' conclusion that, for C, H, N, O explosives, assuming the detonation product composition to be N2(g)/H2O(g)/CO2(g)/C(s) gives overall quite satisfactory results.
Źródło:
Central European Journal of Energetic Materials; 2011, 8, 3; 209-220
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Prediction of Detonation Pressure and Velocity of Explosives with Micrometer Aluminum Powders
Autorzy:
Zhang, Q.
Chang, Y.
Powiązania:
https://bibliotekanauki.pl/articles/358334.pdf
Data publikacji:
2012
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
aluminized explosives
detonation pressure
nonideal explosives
detonation velocity
Opis:
The data reported shows that the Chapman-Jouguet (CJ) detonation parameters of non-ideal explosives calculated from existing thermodynamic computer codes are significantly different from experimental results. We use CJ detonation theory to present a new approach predicting detonation pressure and velocity of aluminized explosives by thermodynamic detonation theory. There is no need to use the assumption of full and partial equilibrium of aluminum powder in reaction zones in the new approach. In this work the best agreement with experimental data was obtained by adjusting the parameter k in the Becker- Kistiakosky-Wilson equations of state (BKW-EOS). The detonation pressure and velocity values calculated by the present method agree well with the experimental results. All of the deviations for the calculated pressures of aluminized explosives are less than 9% and those for the detonation velocities are less than 7%.
Źródło:
Central European Journal of Energetic Materials; 2012, 9, 1; 77-86
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Studies on Empirical Approaches for Estimation of Detonation Velocity of High Explosives
Autorzy:
Shekhar, H.
Powiązania:
https://bibliotekanauki.pl/articles/358324.pdf
Data publikacji:
2012
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
explosives
detonation
velocity of detonation (VOD)
empirical
density
heat of formation
Opis:
Despite many computer based codes like CHEETAH, TIGER, RUBY, BKW, etc. the velocity of detonation (VOD) for explosive molecules and explosive mixtures (formulations) is estimated by several empirical formulations. This article discusses various approaches for the estimation of the velocity of detonation by empirical mathematical equations. The formulation proposed by Kamlet in 1968 is the oldest one and it is confirmed to be more reliable by many subsequent researchers. The method proposed by Rothstein (1978), Xiong (1985), Stein (1990), Keshavarz (2006) are discussed and compared for conventional explosive molecules like RDX, HMX, TNT, PETN, and HNS. The values of the velocity of detonation for these molecules are found to be very close to each other. Further comparison of empirical mathematical formulations was carried out for four other explosive molecules of relatively recent origin (CL-20, FOX-7, TATB and NTO). These molecules were selected as they were unknown at the time of the proposed formulations except that by Keshavarz (2006). For CL-20, the velocity of detonation by different methods is 9345.1 m/s (Kamlet), 9378.8 m/s (Rothstein), 9116.0 m/s (Xiong), 9383.7 m/s (Stein) and 9887.9 m/s (Keshavarz) respectively. The method proposed by Keshavarz gives a higher value of the velocity of detonation than the others. For FOX-7, the values are 8636.6 m/s (Kamlet), 8733.3 m/s (Rothstein), 8766.1 m/s (Xiong), 8645.0 m/s (Stein) and 8245.3 m/s (Keshavarz) respectively. In this case the Keshavarz approach gives a lower value of the velocity of detonation. For these molecules, the results by the Xiong method is very close to that obtained by the Kamlet method. Deviation, as well as dispersion of the calculated values by other methods, is on the high side.
Źródło:
Central European Journal of Energetic Materials; 2012, 9, 1; 39-48
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of the Initiation Energy on theVelocity of Detonation of ANFO Explosive
Autorzy:
Bohanek, V.
Dobrilović, M.
Škrlec, V.
Powiązania:
https://bibliotekanauki.pl/articles/358833.pdf
Data publikacji:
2013
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
ANFO
initiation energy
velocity detonation
Opis:
ANFO explosives have been widely used for blasting operations in mining and civil engineering. From a scientific point of view, ANFO is interesting due to its non-ideal detonation. There are numerous factors that affect the velocity of detonation of ANFO explosives. This paper presents measured velocities of detonation of ANFO explosives initiated by various initiation methods and initiation energies. ANFO explosives were tested in steel pipes, and detonators and boosters of different masses and initiation energies were used for initiation. The initiation energy of a detonator was determined using the underwater initiation capability test. The influence of the equivalent shock energy and the equivalent bubble energy on the velocity of detonation of ANFO was also determined. These measured results contribute to a better understanding of the non-ideal detonation of ANFO explosives.
Źródło:
Central European Journal of Energetic Materials; 2013, 10, 4; 555-568
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Applicability of Kamlet’s Method for the Prediction of the Velocity of Detonation (VOD) of Polyurethane (PU) Based Binary Explosive Compositions
Autorzy:
Shekhar, H.
Powiązania:
https://bibliotekanauki.pl/articles/358290.pdf
Data publikacji:
2013
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
explosives
booster
velocity of detonation
polyurethane (PU)
Kamlet’s metod
Opis:
The velocity of detonation (VOD) of polyurethane (PU) based binary explosive compositions is assessed by Kamlet’s method and compared with experimental results for a few compositions. These compositions are used as booster compositions for the initiation of main charges and the velocity of detonation is determined empirically for compositions with explosives like RDX, HMX, TATB, FOX-7, CL-20. For some of the compositions, the VOD was determined experimentally and found to match the predicted values. For RDX/PU (95/5) explosive composition, the experimental and estimated VODs at 1.66g/cm3 bulk charge density, are 8211 and 8224 m/s respectively. For CL-20/PU (95/5) composition, at a charge density of 1.82 g/cm3 , the calculated VOD was 8775 m/s against the experimental value of 8943 m/s. The applicability of Kamlet’s method for the prediction of the VOD for 95/5 Explosive/PU compositions was also established. These fndings contradict an earlier hypothesis concerning the weight average estimation of Kamlet’s parameter ϕ and establish closer estimates of the VOD using the weight average assessment of the parameters ‘N’, ‘M’ and ‘Q’.
Źródło:
Central European Journal of Energetic Materials; 2013, 10, 2; 217-223
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Badania parametrów detonacyjnych materiałów wybuchowych emulsyjnych o niskiej gęstości modyfikowanej mikrobalonami
Research on detonation parameters of low density emulsion explosives modified by microballoons
Autorzy:
Maranda, A.
Drobysz, B.
Paszula, J.
Powiązania:
https://bibliotekanauki.pl/articles/142241.pdf
Data publikacji:
2014
Wydawca:
Stowarzyszenie Inżynierów i Techników Przemysłu Chemicznego. Zakład Wydawniczy CHEMPRESS-SITPChem
Tematy:
materiały wybuchowe emulsyjne
prędkość detonacji
powietrzne fale podmuchowe
water-in-oil emulsion explosives detonation velocity
blast wave
Opis:
W pracy przedstawiono wyniki badań wybranych parametrów detonacyjnych materiałów wybuchowych emulsyjnych o niskiej gęstości. Jako środki zmniejszające gęstość stosowano mikrobalony wykonane z tworzyw sztucznych. Uzyskano mieszaninę wybuchową o gęstości poniżej 0,6 g/cm3. Przeprowadzono badania zależności prędkości detonacji i intensywności powietrznej fali od zawartości mikrobalonów
The paper presents the results of selected detonation parameters of low density emulsion explosives. Microballoons made of plastic materials were used in the research as a factor of reducing the density. Obtained explosive mixture had a density below 0.6 g/cm3. We conducted the studies on the dependence of the detonation velocity and intensity of the blast wave from the microballoons content.
Źródło:
Chemik; 2014, 68, 1; 17-22
0009-2886
Pojawia się w:
Chemik
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of explosive charge temperature on the velocity of detonation of ANFO explosives
Autorzy:
Dobrilović, M.
Bohanek, V.
Žganec, S.
Powiązania:
https://bibliotekanauki.pl/articles/358379.pdf
Data publikacji:
2014
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
ANFO
temperature
velocity of detonation
Opis:
ANFO is the most common explosive for civil use in the fields of mining and civil engineering. The effect of the explosive and the quantity of energy released by the detonation depends on the velocity of detonation. The influence on explosive performance of a large number of physical aspects of ANFO explosives and the conditions of initiation during blasting operations are mostly known, but the influence of the charge temperature on the velocity of detonation is not known. In order to quantify that influence, research on laboratory samples of smaller diameter and field samples of larger diameter, detonated in steel pipes, has been carried out. By processing and analysing the measured results the influence of charge temperature on the velocity of detonation of ANFO explosive has been determined.
Źródło:
Central European Journal of Energetic Materials; 2014, 11, 2; 191-197
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Otrzymywanie i badania kompozycji wybuchowych zawierających żywicę poliestrową
Obtaining and testing of explosives containing polyester resin
Autorzy:
Nita, M.
Warchoł, R.
Prasuła, P.
Powiązania:
https://bibliotekanauki.pl/articles/235856.pdf
Data publikacji:
2014
Wydawca:
Wojskowy Instytut Techniczny Uzbrojenia
Tematy:
kompozycje wybuchowe z żywicą poliestrową
materiały wybuchowe
KMW
analiza termiczna
DSC
TGA
TG/DTG
prędkość detonacji
średnica krytyczna
wrażliwość na uderzenie
tarcie
strumień kumulacyjny
polymer bonded explosives
polyester resin
High Explosives
HEs
thermal analysis
detonation velocity
mechanical impacts
friction
shaped charge jet
SCJ
Opis:
W wyniku pracy otrzymano, jak również wstępnie scharakteryzowano, cztery kompozycje wybuchowe, które mogą zostać użyte w procesie elaboracji elementów środków bojowych metodą zalewania. Podstawowymi kruszącymi materiałami wybuchowymi (KMW) stosowanymi w postaci drobnokrystalicznej w badanych kompozycjach były: heksogen (RDX) oktogen (HMX), pentryt (PETN), zaś substancją wielkocząsteczkową - żywica poliestrowa, która nadawała lejność kompozycji przed jej sieciowaniem. Zbadano proces topnienia i rozkładu termicznego czystych KMW oraz kompozycji wybuchowych przygotowanych na ich bazie za pomocą analizy termicznej obejmującej różnicową kalorymetrię skaningową (DSC) i analizę termograwimetryczną (TGA) w opcji TG i DTG, a także określono kształt i wielkości kryształów KMW za pomocą mikroskopu optycznego. W pracy przedstawiono również wyniki pomiarów wrażliwości wytypowanych kompozycji na uderzenie, tarcie i działanie strumienia kumulacyjnego. Ponadto określono prędkości i ciśnienia detonacji oraz średnice krytyczne wybranych ładunków bazujących na krystalicznych materiałach wybuchowych i żywicy poliestrowej.
In the frame of works described in this paper, there were obtained and preliminary characterized explosive compositions able to be inserted into munitions by casting. Crystalline high explosives (HEs) used in the tested compositions were hexogene (RDX), octogene (HMX) and penthrite (PETN), and as the binder the polyester resin was used. This resin in its prepolimer form, gave castability of the tested compositions prior their crosslinking. There were investigated melting and thermal decomposition of both pure HEs and prepared compositions by means of thermal analysis techniques including differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) operating in TG and TGA modes. There were also determined shapes and sizes of HEs crystals in optical microscope. Test results on sensitivity of selected compositions to mechanical impact, friction and to action of shaped charge jet (SCJ) were presented as well. Due to detonation tests there were determined velocity of detonation (VD), pressure detonation (PD) and critical diameters of explosive charges based on HEs and polyester resin.
Źródło:
Problemy Techniki Uzbrojenia; 2014, 43, 130; 45-57
1230-3801
Pojawia się w:
Problemy Techniki Uzbrojenia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Recent advances in the study of the initiation of energetic materials rusing characteristics of their thermal decomposition. Part I, Cyclic nitramines
Autorzy:
Zeman, S.
Yan, Q.-L.
Vlček, M.
Powiązania:
https://bibliotekanauki.pl/articles/358411.pdf
Data publikacji:
2014
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
arrhenius parameters
detonation velocity
explosives
initiation
manometric method
nitramines
Opis:
Arrhenius parameters, Ea and log A, of 17 cyclic nitramines, derived from the Russian vacuum manometric method (SMM) and compatible thermoanalytical methods, have been used in this study. The detonation velocity, D, at maximum theoretical crystal density, of the nitramines in this study was taken as a characteristic of their detonation. On the basis of known relationships between their Ea and D2 values (modified Evans-Polanyi-Semenov equation), the specific influence of some physicochemical properties on their thermal decomposition was shown. A new logarithmic relationship was found between the rate constant k, of the unimolecular thermal decomposition of the nitramines studied at 230 °C, and their D values. A fundamental characteristic of this new relationship rests on the equivalency of the primary fission processes in the low-temperature thermal decomposition and on the detonation initiation of the nitramines under study. Both these relationships confirm the problems encountered in the kinetic specification of the thermal decomposition of 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12hexaazaisowurtzitane (HNIW, CL-20) and 1,3,5,7-tetranitro-1,3,5,7-tetrazocane (HMX). These problems, and also the possible influence of the pre-decomposition states on the thermal decomposition of the nitramines studied, are discussed.
Źródło:
Central European Journal of Energetic Materials; 2014, 11, 2; 173-189
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Recent Advances in the Study of the Initiation of Energetic Materials Using the Characteristics of Their Thermal Decomposition Part II. Using Simple Differential Thermal Analysis
Autorzy:
Zeman, S.
Yan, Q.-L.
Elbeih, A.
Powiązania:
https://bibliotekanauki.pl/articles/358712.pdf
Data publikacji:
2014
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
activation energy
detonation velocity
DTA
explosives
initiation
nitramines
PBX
thermal decomposition
Opis:
Simple Differential Thermal Analysis (DTA), with evaluation of its output by the Kissinger method, was used in the case of emulsion explosives and, as an advanced application, for several plastic bonded explosives (PBXs). In both of these kinds of explosive the square of their detonation velocities, D2, is used as their performance characteristic. A relationship between the slope of the Kissinger equation, EaT-1, and the D2 values makes it possible to formulate a possible mechanism for the initiation of emulsion explosives. Regarding PBXs, it would seem possible to postulate a change in the detonation chemistry of plastic bonded nitramines, depending on the pressure and temperature in the zone of the detonation wave, particularly in the case of CL-20 fillers. Binders with aromatic building units in their macromolecular structure seem to be less-favoured in terms of their thermal reactivity and performance than the final PBXs. These findings document the advantages of the above-mentioned application of simple DTA.
Źródło:
Central European Journal of Energetic Materials; 2014, 11, 3; 395-404
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Study on the Detonation Parameters of Aluminized Explosives Based on a Disequilibrium Multiphase Model
Autorzy:
Pei, H.
Nie, J.
Jiao, Q.
Powiązania:
https://bibliotekanauki.pl/articles/358535.pdf
Data publikacji:
2014
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
nonideal explosives
velocity of detonation
detonation pressure
relaxation timescale
Opis:
Detonation models are usually based on the classical Euler equations of gas dynamics under the assumption of thermodynamic equilibrium. However reported data show the Chapman-Jouguet (CJ) detonation parameters of nonideal explosives based on thermodynamic equilibrium codes are significantly different from experimental results. Based on the conventional CJ model, a new multiphase flow model, not in thermal equilibrium, was considered in this study. This approach was applied to compute the velocity of detonation for several aluminized explosives. The predictions are better than the CJ equilibrium model and are in excellent agreement with experimental data. All of the deviations for the velocity of detonation (VOD) are less than 4%.
Źródło:
Central European Journal of Energetic Materials; 2014, 11, 4; 491-500
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 60

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