Abstract
Semi-empirical equations of state (thermal and caloric) are obtained to calculate not only the kinematic parameters (shock wave velocity, particle velocity, and reverberation of waves) but also the thermodynamic parameters (temperature, pressure, and compression) of monolithic and porous polytetrafluoroethylene at high shock pressures. The equations of state are used to model wave interaction in shock-wave experiments using the developed hydrocode. The equations are verified by comparison simulation results with published results of experiments and the data of our shock compression tests of solid and porous samples of PTFE in the range of 10–170 GPa.
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Original Russian Text © A.M. Molodets, D.V. Shakhrai, A.S. Savinykh, A.A. Golyshev, V.V. Kim.
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Translated from Fizika Goreniya i Vzryva, Vol. 49, No. 6, pp. 121–129, November–December, 2013.
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Molodets, A.M., Shakhrai, D.V., Savinykh, A.S. et al. Equation of state of polytetrafluoroethylene for calculating shock compression parameters at megabar pressures. Combust Explos Shock Waves 49, 731–738 (2013). https://doi.org/10.1134/S0010508213060130
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DOI: https://doi.org/10.1134/S0010508213060130