Equations of State for Calculating the Pressures of Shock-Wave Compression of Pentaerythritol Tetranitrate (PETN)

An approach is proposed making it possible to construct the shock adiabats of molecular crystals of nitro compounds based on the data on their isothermal compression. For this purpose, an equation of state for a crystal of pentaerythritol tetranitrate (PETN) was constructed. The employed comparative...

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Bibliographic Details
Published in:	Journal of engineering physics and thermophysics Vol. 96; no. 4; pp. 1052 - 1059
Main Authors:	Kovalev, Yu. M., Pomykalov, E. V.
Format:	Journal Article
Language:	English
Published:	New York Springer US 01-07-2023 Springer Springer Nature B.V
Subjects:	Classical Mechanics Comparative analysis Complex Systems Crystals Engineering Engineering Thermodynamics Equations of state Heat and Mass Transfer Industrial Chemistry/Chemical Engineering Longitudinal waves Mathematical analysis Nitro compounds Pentaerythritol PETN Thermodynamics Thermophysical Properties isothermal compression shock adiabat equation of state molecular crystal Helmholtz energy Debye approximation Grüneisen coefficient
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Summary:	An approach is proposed making it possible to construct the shock adiabats of molecular crystals of nitro compounds based on the data on their isothermal compression. For this purpose, an equation of state for a crystal of pentaerythritol tetranitrate (PETN) was constructed. The employed comparative analysis of the experimental data on the shock-wave compression of a simple PETN crystal with calculations carried out using the proposed approach to converting the isothermal compression pressures to the shock adiabat and the constructed equation of state of the PETN showed that the experimental and calculated pressure values are within the experimental error.
ISSN:	1062-0125 1573-871X
DOI:	10.1007/s10891-023-02769-y