The reactants equation of state for the tri-amino-tri-nitro-benzene (TATB) based explosive PBX 9502

Journal Article · Mon Jul 17 00:00:00 EDT 2017 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4989378· OSTI ID:1467264

Aslam, Tariq D.  ^[1]

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1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

The response of high explosives (HEs), due to mechanical and/or thermal insults, is of great importance for both safety and performance. A major component of how an HE responds to these stimuli stems from its reactant equation of state (EOS). In this study, the tri-amino-tri-nitro-benzene based explosive PBX 9502 is investigated by examining recent experiments. Furthermore, a complete thermal EOS is calibrated based on the functional form devised by Wescott, Stewart, and Davis [J. Appl. Phys. 98, 053514 (2005)]. It is found, by comparing to earlier calibrations, that a variety of thermodynamic data are needed to sufficiently constrain the EOS response over a wide range of thermodynamic state space. Included in the calibration presented here is the specific heat as a function of temperature, isobaric thermal expansion, and shock Hugoniot response. As validation of the resulting model, isothermal compression and isentropic compression are compared with recent experiments.

• Research Organization: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA)
• Grant/Contract Number: AC52-06NA25396
• OSTI ID: 1467264
• Alternate ID(s): OSTI ID: 1371493
• Report Number(s): LA-UR-17-24446
• Journal Information: Journal of Applied Physics, Vol. 122, Issue 3; ISSN 0021-8979
• Publisher: American Institute of Physics (AIP)
• Country of Publication: United States
• Language: English

Related Subjects

45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
phase transitions
thermodynamic properties
elastic moduli
crystal orientation
integration
thermodynamic processes
thermomechanical effects
chemical compounds
acoustical properties
calibration