Determination of the Equation of State for the Detonation Products of Emulsion Explosives

Trzciński, W. A.; Szymańczyk, L.; Kramarczyk, Bartłomiej

doi:10.22211/cejem/104684

Cited by 12 publications

(8 citation statements)

References 5 publications

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“…On the other hand, CompNTOR (NTO – 37.5 %, TNT – 30 %, RDX 11 %, Al 14 % & wax – 7.5 % and ρ – 1.73 g cm −3 & VOD 6945 m s −1 ) is initiated by jet. The same team [103] formulated several other formulations based on NTO, TNT, RDX & HMX:…”

Section: Resultsmentioning

confidence: 99%

Some Novel High Energy Materials for Improved Performance**

Agrawal

Dodke²

2021

Zeitschrift anorg allge chemie

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High Energy Materials (HEMs) is a generic/umbrella term which is used for explosives, propellants & pyrotechnics and form an integral part of almost all weapon systems. A large number of HEMs have been reported in the literature in last few decades. This review paper discusses these HEMs in the light of a new classification of explosives proposed by Agrawal: Thermally stable or Heat‐resistant explosives, High performance (high density & high velocity of detonation) explosives, Melt‐Castable explosives, Insensitive high explosives (IHEs), Energetic binders & plasticizers and Novel energetic materials synthesized with the use of dinitrogen pentoxide (N2O5) technology. This review also critically examines these HEMs from the angles of scalability, processability, safety, reliability and performance in order to ascertain their potential for applications. In the end, problems associated with the use of currently available energetic materials & their likely solutions and areas for further research are also highlighted.

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Section: Resultsmentioning

confidence: 99%

Some Novel High Energy Materials for Improved Performance**

Agrawal

Dodke²

2021

Zeitschrift anorg allge chemie

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“…The motion was recorded by a high-speed rotating mirror streak camera (writing speed 1.5 mm/μs), using an argon bomb as an illuminator. The experimental detonation velocity D of explosives was measured simultaneously during the cylinder test using the short-circuit sensors method [20].…”

Section: Test Methodsmentioning

confidence: 99%

Thermally Stable and Low‐Sensitive Aluminized Explosives with Improved Detonation Performance

Tan

Song

et al. 2021

Propellants Explo Pyrotec

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Two new types of aluminized explosives TATB/ HMX/Al and LLM-105/Al were formulated and compared with the formerly reported TATB/Al explosives in terms of thermal stability, mechanical sensitivity, and detonation performance. Firstly, the heat of the explosion was measured and two formulations were selected as the investigated samples. Next the thermal stability was studied by simultaneous thermogravimetric analysis/differential scanning calorimetry (TGA/DSC) and thermal cook-off tests. Then the impact and friction sensitivity were measured, and finally the detonation performance was characterized by cylinder tests and particle velocity measurements of the detonation reaction zone. From the calorimetric data, the new types of explosives increase the heat of the explosion significantly. In terms of thermal stability, LLM-105/Al = 65/ 30 is more stable than TATB/HMX/Al = 50/15/30, but both of them are inferior to TATB/Al = 70/25. The impact sensitivity of the two new explosives is higher than that of TATB/Al = 70/25, and all of the samples are insensitive to friction. For detonation performance, both of the two new samples are superior to TATB/Al = 70/25, and LLM-105/Al = 65/30 exhibits the best performance that it has the highest Gurney energy, detonation velocity, and detonation pressure. Conclusions about how to use those aluminized explosives to generate optimal effects are drawn.

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“…In [4] it is shown that the Jones -Wilkins -Lee equation is used to study explosive processes at high pressures, and the equation in the form of Mie -Grüneisen is applicable to analyze the fluid flow at high pressures. In accordance with [8], the Jones -Wilkins -Lee equation of state finds wide application in analyses of various explosive and, in particular, detonation processes.…”

Section: Introductionmentioning

confidence: 92%

Incorporation of Fluid Compressibility into the Calculation of the Stationary Mode of Operation of a Hydraulic Device at High Fluid Pressures

Tenenev¹,

Raeder²,

Chernova³

2021

Nelin. Dinam.

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This paper is concerned with assessing the correctness of applying various mathematical models for the calculation of the hydroshock phenomena in technical devices for modes close to critical parameters of the fluid. We study the applicability limits of the equation of state for an incompressible fluid (the assumption of constancy of the medium density) to the simulation of processes of the safety valve operation for high values of pressures in the valve. We present a scheme for adapting the numerical method of S. K. Godunov for calculation of flows of incompressible fluids. A generalization of the method for the Mie – Grüneisen equation of state is made using an algorithm of local approximation. A detailed validation and verification of the developed numerical method is provided, and relevant schemes and algorithms are given. Modeling of the hydroshock phenomenon under the valve actuation within the incompressible fluid model is carried out by the openFoam software. The comparison of the results for the weakly compressible

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Determination of the Equation of State for the Detonation Products of Emulsion Explosives

Cited by 12 publications

References 5 publications

Some Novel High Energy Materials for Improved Performance**

Some Novel High Energy Materials for Improved Performance**

Thermally Stable and Low‐Sensitive Aluminized Explosives with Improved Detonation Performance

Incorporation of Fluid Compressibility into the Calculation of the Stationary Mode of Operation of a Hydraulic Device at High Fluid Pressures

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