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Davydov Y.V.,Research Institute of Mechanical Engineering | Gubin A.S.,Research Institute of Mechanical Engineering
Combustion, Explosion and Shock Waves | Year: 2014

The dependences of the detonation velocity and the propellant performance measured using the M-40 technique on the charge density for aluminized explosives with different mass fraction of Al were studied. The fractions of the energy of Al combustion utilized during the chemical reactions and during the acceleration of the flyer plate were estimated. Regression dependences of the detonation velocity and the propellant performance on the charge density were obtained. The effect of the addition of particulate Al, Ti, Zr, and W in an amount of 5–30% on the detonation velocity of high-density explosive charges based on plasticized RDX was investigated. It is found that the reduction in the detonation velocity with the addition of various metallic additives is determined by the longitudinal sound velocity of the additive, and not by its density. Simple formulas for calculating the detonation parameters of high-density metallized explosives were obtained. © 2014, Pleiades Publishing, Ltd. Source


Davydov V.Y.,Research Institute of Mechanical Engineering | Gubin A.S.,Research Institute of Mechanical Engineering | Zagryadtskii F.S.,Research Institute of Mechanical Engineering | Potapov I.V.,Research Institute of Mechanical Engineering
Combustion, Explosion and Shock Waves | Year: 2014

The propellant performance and the velocity of expansion of detonation products of explosives based on RDX and HMX and their mixtures with particulate Al were investigated. Measurements were performed in air at atmospheric pressure and in rarefied air. Comparison of the results shows that the detonation products of explosives, including those containing no Al additives, react with the surrounding air. The completeness of the reaction increases with increasing velocity of detonation products in air. © 2014, Pleiades Publishing, Ltd. Source

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