Modelling of shock compression and thermal expansion of five metals
Authors
Valentin Fedorovich Kuropatenko
Russian Federal Nuclear Center – Zababakhin All-Russian Scientific Research Institute of Technical Physics, Snezhinsk
Sergey Yurjevich Filatov
Russian Federal Nuclear Center – Zababakhin All-Russian Scientific Research Institute of Technical Physics, Snezhinsk
Keywords:
equation of state, Simplex method, thermal expansion, shock compression
Abstract
The method of building equations of state in the area of low pressures is offered. The method is based on linear dependence of shock wave velocity on a substance velocity and thermal expansion data at constant pressure. Linear dependence of shock wave velocity on mass velocity leads to the dependence of Gruneisen parameters on the density. This data is used together with thermal expansion data at constant pressure. The parameters for the equation of state are computed for five metals with the help of the original version of Simplex method. A sum of quadratic differences between calculated and experimental values is selected as a target function. The theoretical values have agreed with the experimental one.
Author Biographies
Valentin Fedorovich Kuropatenko, Russian Federal Nuclear Center – Zababakhin All-Russian Scientific Research Institute of Technical Physics, Snezhinsk
Dr. Sc. (Physics and Mathematics), Professor, Senior Researcher
Sergey Yurjevich Filatov, Russian Federal Nuclear Center – Zababakhin All-Russian Scientific Research Institute of Technical Physics, Snezhinsk
