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Kozlov E.A.,Zababakhin Institute of Technical Physics | Brichikov S.A.,Zababakhin Institute of Technical Physics | Kuchko D.P.,Zababakhin Institute of Technical Physics | Ol'khovskii A.V.,Zababakhin Institute of Technical Physics | And 2 more authors.
Combustion, Explosion and Shock Waves | Year: 2014

This paper presents the results of experiments on the spalling and nonspalling acceleration of steel plates by HMX-based explosive charges of different initial thickness (with spall closure) in the presence and absence of an air gap between the explosive charge and the projectile plate. The plate acceleration dynamics was simultaneously recorded by two different independent laser interferometric techniques using lasers of different wavelengths. The experiments were carried out to perform a metrological certification of a new laser-heterodyne technique based on the data of a previously metrologically certified laser-interferometric technique based on the Fabry-Pérot scheme. © 2014, Pleiades Publishing, Ltd.

Kucherenko Y.A.,Zababakhin Institute of Technical Physics | Pavlenko A.V.,Zababakhin Institute of Technical Physics | Shestachenko O.E.,Zababakhin Institute of Technical Physics | Balabin S.I.,Zababakhin Institute of Technical Physics | And 2 more authors.
Journal of Applied Mechanics and Technical Physics | Year: 2010

Experiments with two pairs of gases with different densities with the initial values of the Atwood number A = 0.21 and 0.83 are performed in a multifunctional shock tube. Statistical and spectral characteristics of the mixing zone formed owing to the Richtmyer-Meshkov and Rayleigh-Taylor instability are obtained by the laser sheet technique, and the range of lengths of the main waves in the structure of this zone is determined. © 2010 MAIK/Nauka.

Shishkin N.I.,Zababakhin Institute of Technical Physics
Journal of Applied Mechanics and Technical Physics | Year: 2011

Formulas for the diameter and depth of an explosion crater are obtained which take into account the energy and impulse of the explosion products, rock strength, burial depth of the explosive charge, and gravity. Using the explosive-shock analogy, the obtained relations are extended to the case of meteorite (impactor) impact on the planet's crust (target). It is shown that in the gravity cratering regime, the influence of the impulse of the impactor is significant and increases with increasing its size. In the strength cratering regime, the impulse has little effect on crater dimensions. It is established that crater dimensions are determined mainly by the kinetic energy of the impactor and, to a lesser degree, by its impulse. © 2011 Pleiades Publishing, Ltd.

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