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Article
An Approximate Algorithm for Simulating Stationary Discrete Random Processes with Bivariate Distributions of Their Consecutive Components in the Form of Mixtures of Gaussian Distributions
The paper presents an approximate algorithm for modeling a stationary discrete random process with marginal and bivariate distributions of its consecutive components in the form of a mixture of two Gaussian di...
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Article
Properties of Shock and Quasi-Isentropically Compressed Krypton in the Pressure Range of up to 2700 GPa
The density of shock-compressed liquid krypton ρ ≈ 9 g/cm3 and the temperature T ≈ 55 000 K on the main Hugoniot adiabat in the pressure range of Р ≈ 140–255 GPa have been measured with hemispherical shock wave g...
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Article
Dynamics, Symmetry, and Shock-Induced Dusting at Quasi-Isentropic and Isentropic Acceleration of Cylindrical Liners
Two devices intended for copper cylindrical liner gasdynamic acceleration to velocities of 5–7 km/s using the chemicals explosion energy have been investigated. It has been demonstrated that the acceleration o...
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Article
An Approximate Iterative Algorithm for Modeling of Non-Gaussian Vectors with Given Marginal Distributions and Covariance Matrix
A new iterative method for modeling of non-Gaussian random vectors with given marginal distributions and a covariance matrix is proposed in this paper. The algorithm is compared with another iterative algorith...
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Article
Open AccessExperimental Study of the Compressibility of a Helium Plasma at a Pressure up to 20 TPa
A nonideal helium plasma has been compressed to a density of ρ ≈ 14 g/cm3 at a pressure of \(P \approx 20{\kern 1pt} \) TPa (...
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Article
Static, Dynamic, and Shock-Wave Strengths of 17G1S, 09G2S, 10G2FBYu, and K60 Strength Class Pipe Steels
In the development of special explosion-proof chambers that must meet strict requirements for strength reliability, an important issue is the choice of the material of the load-bearing shell subjected to pulse...
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Article
Open AccessCharacteristics of “Dust” Fluxes from the Surface of Copper and Lead Liners Exposed to One or Two Successive Shock Waves
Comparative experimental studies of the shock-induced particle ejection (“dusting”) from the free rough (Rz20) surface of copper and lead liners exposed to one or two successive shock waves separated in time b...
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Article
Quasi-Isentropic Compression of a Nonideal Helium Plasma at a Constant Final Temperature of 21 000 K and Pressures up to 600 GPa
The quasi-isentropic compressibility of a strongly nonideal helium plasma in the pressure range 250–600 GPa is experimentally studied in devices with cylindrical geometry. The temperature at the front of a cyl...
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Article
Synthesis of a Fiber-Forming Copolymer of Acrylonitrile in Dimethylsulfoxide
Aspects of implementing the homophasic free-radical synthesis in DMSO of a fiber-forming tercopolymer (FTP) based on acrylonitrile, methacrylate, and 2-acrylamide-2-methylpropanesulfonic acid with a given intr...
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Article
Erratum to: Effect of Shock-wave Dusting and Ways to Suppress It
An Erratum to this paper has been published: https://doi.org/10.1134/S106377612230001X
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Article
Effect of Shock-Wave Dusting and Ways to Suppress It
The ejection of particles from the free surface of metal liners accelerated to velocities of 4–5 km/s using explosive energy has been investigated. It is shown experimentally that the effect of shock-wave dust...
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Article
Compressibility of Nonideal Deuterium and Helium Plasmas up to 20 TPa
We present our experimental results on the compressibility of strongly coupled (nonideal) degenerate deuterium and helium plasmas quasi-isentropically compressed to pressures P ~ 20 TPa in devices with a spherica...
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Article
Quasi-Isentropic Compression of a Nonideal Plasma of Deuterium and its Mixture with Helium at Pressures up to 250 GPa
We present data on the quasi-isentropic compressibility of a strongly coupled (nonideal) plasma of a deuterium–helium mixture in the range of pressures 150–250 GPa in devices with a cylindrical geometry and a ...
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Article
Reaction of Cylindrical 09G2S and 10KhSND Steel Shells with Longitudinal and Annular Welded Joints to Explosive Loading
Large explosion-proof chambers are manufactured using cylindrical shells made of sheet metal by rolling and welding with addition of longitudinal and circumferential seams. In this case, one should make a choi...
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Article
Peculiarities of Performance of Piezoelectric Sensors under a Linear Increase in Pressure
The electric response and processes occurring in piezoelectric elements subjected to pulsed pressure are usually described for two extreme cases: when the time of pressure variation is much longer than the tim...
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Article
Constructing a Numerically Statistical Model of a Homogeneous Random Field with a Given Distribution of the Integral over One of the Phase Coordinates
A numerically implementable model of a three-dimensional homogeneous random field in a “horizontal” layer 0 < z < H is constructed assuming that the integral of the field with respect to the “vertical” coordinate...
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Article
Characteristics of Shock-Induced Dust Flux from the Surface of Lead and Copper Samples under Pressure in the Shock Wave of 45–50 GPa with Unloading into Vacuum
The results of experimental studies of the shock-induced particle ejection (“dusting”) from a free rough (Rz = 20) surface of lead and copper samples into an evacuated medium are presented. The experimental metho...
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Article
Prediction of the Mechanical Properties of Metals After Cold Pressing
We propose a procedure for the evaluation of plasticity of the prestrained metal of blanks. This procedure uses the model of fracture based on the tensor description of the accumulation of defects under the co...
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Article
Measurement of Quasi-Isentropic Compressibility of Gaseous Helium at a Pressure of ~10 TPa
A nonideal helium plasma has been compressed to a density of ~9 g/cm3 by a pressure of P ~ 10000 GPa produced by an explosive charge of 85 kg of TNT in a spherical two-cascade device. The experiment has been perf...
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Article
New Capabilities of Proton Radiography for Recording Fast Gas-Dynamic Processes
For about 15 years, studies of fast gas-dynamic processes have been conducted at the Logunov Institute of Experimental Physics (VNIIEF) of the Russian Federal Nuclear Center using the proton radiography system...
