Description of Shock Compression of Some Molecular Crystals
M. A. Biryukova1, D. V. Petrov1, Yu. M. Kovalev2, E. B. Smirnov1,3
1All-Russian Scientific Research Institute of Technical Physics, Snezhinsk, Russia
2South Ural State University, Snezhinsk, Russia
3South Ural State University, Chelyabinsk, Russia
Keywords: equation of state, molecular crystals, shock adiabat, heat capacity, shock compression temperature, isothermal compression
Abstract
An approach is proposed that allows for the construction of shock adiabats of molecular crystals of nitro compounds based on data on their isothermal compression. Equations of state for PETN and TATB crystals are constructed for this purpose. The comparative analysis of experimental data on shock-wave compression of a simple PETN crystal and computational results is performed using the proposed approach to converting isothermal compression pressures to a shock adiabat and the constructed equation of state for PETN, presented in the work. As shown by the analysis, the experimental and calculated pressures lie within the limits of experimental error.
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