Construction of the equations of state for polycrystalline solids for the purpose of the numerical solution of problems of continuous medium mechanics

The equations of state for polycrystalline solids which are in region of compression are developed on experimentally defined shock Hugoniot adiabat and dependence of specific heat on density and temperature. These equations are convenient for the numerical solution of problems of continuous medium m...

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Bibliographic Details
Published in:Journal of physics. Conference series Vol. 1392; no. 1; pp. 12017 - 12022
Main Authors: Ostrik, A V, Nikolaev, D N
Format: Journal Article
Language:English
Published: Bristol IOP Publishing 01.11.2019
Subjects:
Compression ratio
Equations of state
Hugoniot curves
Longitudinal waves
Mathematical analysis
Mechanics (physics)
Numerical methods
Physics
Polycrystals
Sapphire
Shock waves
ISSN:1742-6588, 1742-6596
Online Access:Get full text
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Summary:The equations of state for polycrystalline solids which are in region of compression are developed on experimentally defined shock Hugoniot adiabat and dependence of specific heat on density and temperature. These equations are convenient for the numerical solution of problems of continuous medium mechanics. The numerical method for definition of specific cold energy and the Gruneizen function at T = 0 K depending on compression ratio is proposed. Results of comparison for temperatures behind shock wave in sapphire by means of the developed equations of state and other methods are given.
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ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1392/1/012017