Numerical simulation of thermodynamic parameters of lithium deuteride and its mixtures under shock wave loading

2018 ◽  
Author(s):  
K. K. Maevskii
Keyword(s):  
Numerical Simulation ◽  
Shock Wave ◽  
Thermodynamic Parameters ◽  
Shock Wave Loading ◽  
Wave Loading ◽  
Lithium Deuteride

scholarly journals Численное моделирование термодинамических параметров высокопористой меди

2019 ◽  
Vol 89 (8) ◽  
pp. 1158
Author(s):  
К.К. Маевский ◽  
С.А. Кинеловский
Keyword(s):  
Experimental Data ◽  
Shock Wave ◽  
Equation Of State ◽  
Thermodynamic Parameters ◽  
Shock Wave Loading ◽  
Wave Loading ◽  
Thermodynamically Equilibrium ◽  
Consistent Equation ◽  
Modified Equation ◽  
Fitting Parameters

The modified equation of state is proposed for the calculation of thermodynamically equilibrium model TEС2 to improve the reliability of the description of thermodynamic parameters of shock-wave loading of pure materials and heterogeneous mixtures of different porosity. The parameters of the thermally consistent equation of state are determined for copper. A reliable description of the shock-wave loading of copper is obtained for a small number of fitting parameters determined by the experimental data. The thermodynamic parameters for copper of different porosity are modeled, the compression and temperature values along the shock adiabate are determined; the heat capacity value along the normal isobar is calculated. The results of calculations are compared with the known experimental results of different authors.

scholarly journals Behaviour of the peach under underwater shock wave loading

2008 ◽  
Vol 56 (4) ◽  
pp. 151-160
Author(s):  
Libor Severa
Keyword(s):  
Numerical Simulation ◽  
Shock Wave ◽  
Strain Rate ◽  
Compression Test ◽  
Static Loading ◽  
Surface Velocity ◽  
Shock Wave Loading ◽  
Wave Loading ◽  
Underwater Shock Wave ◽  
Underwater Shock

The paper concerns with the experimental and numerical study of the peach (Red Haven) at underwater shock wave loading. The behaviour of the peach skin as well as peach stone can be described in terms of elasticity. Following experiments have been performed: tensile testing of the skin (exocarp) specimens at constant elongation at strain rate 0.01 s−1, compression test of the mesocarp specimens at different strain rates corresponding to quasi – static loading, compression test of the mesocarp spe­ci­mens at the high rates of strain (about 1000 s−1), and compression test of the whole peach stone at strain rate corresponding to quasi – static loading. The model of the peach has been suggested. The model is used for the numerical simulation, which was performed on the software LS DYNA 3D finite element code. Pressure wave propagation in the water has been studied and following quantities evaluated: pressure on the peach surface, displacement, and surface velocity. Two different models (Maxwell and Kelvin) have been used. The results of this simulation show some agreement with results of the observation (undamaged peach skin). The numerical simulation also gives an insight on the details of the loading, which was recently tested as a tool of fruit treatment. It has been shown that undewater shock wave treatment of peaches can lead to their softening.

Numerical Simulation of Wave Propagation and Phase Transition of Tin under Shock-Wave Loading

2009 ◽  
Vol 26 (6) ◽  
pp. 066401 ◽  
Author(s):  
Song Hai-Feng ◽  
Liu Hai-Feng ◽  
Zhang Guang-Cai ◽  
Zhao Yan-Hong
Keyword(s):  
Phase Transition ◽  
Numerical Simulation ◽  
Shock Wave ◽  
Wave Propagation ◽  
Shock Wave Loading ◽  
Wave Loading
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