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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Vydáno v:Journal of physics. Conference series Ročník 1392; číslo 1; s. 12017 - 12022
Hlavní autoři: Ostrik, A V, Nikolaev, D N
Médium: Journal Article
Jazyk:angličtina
Vydáno: Bristol IOP Publishing 01.11.2019
Témata:
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
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Shrnutí: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.
Bibliografie:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1392/1/012017