@inproceedings{1151bacd4a404ba9bd769c025e2e5df2,
title = "Energetic materials at high compression: First-principles density functional theory and reactive force field studies",
abstract = "We report the results of a comparative study of pentaerythritol tetranitrate (PETN) at high compression using classical reactive interatomic potential ReaxFF and first-principles density functional theory (DFT). Lattice parameters of PETN I, the ground state structure at ambient conditions, is obtained by ReaxFF and two different density functional methods (plane wave and LCAO pseudopotential methods) and compared with experiment. Calculated energetics and isothermal equation of state (EOS) upon hydrostatic compression obtained by DFT and ReaxFF are both in good agreement with available experimental data. Our calculations of the hydrostatic EOS at zero temperature are extended to high pressures up to 50 GPa. The anisotropic characteristics of PETN upon uniaxial compression were also calculated by both ReaxFF and DFT.",
keywords = "EOS, Energetic materials, Interatomic potentials, Molecular dynamics, PETN",
author = "Oleynik, \{I. I.\} and M. Conroy and Zybin, \{S. V.\} and L. Zhang and \{Van Duin\}, \{A. C.\} and Goddard, \{W. A.\} and White, \{C. T.\}",
year = "2006",
month = dec,
day = "1",
doi = "10.1063/1.2263387",
language = "English",
isbn = "0735403414",
series = "AIP Conference Proceedings",
pages = "573--576",
booktitle = "SHOCK COMPRESSION OF CONDENSED MATTER - 2005",
note = "SHOCK COMPRESSION OF CONDENSED MATTER - 2005: Proceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter ; Conference date: 31-07-2005 Through 05-08-2005",
}