TY - GEN
T1 - Modeling ignition of HMX with the Gibbs formulation
AU - Lee, Kibaek
AU - Stewart, D. Scott
N1 - Funding Information:
This work has been supported by the Office of Naval Research, Navy N00014-16-1-2057, and the Air Force Office of Scientific Research, AF FA9550-17-1-0223.
Publisher Copyright:
© 2018 Author(s).
PY - 2018/7/3
Y1 - 2018/7/3
N2 - We present a model for the ignition of HMX that uses the Gibbs formulation, in which the stress tensor and temperature are assumed to be in local equilibrium, but phase and chemical changes are not. We assume multi-components for HMX, that includes beta and delta solid phases, a liquid phase, and reactant and gas products. An isotropic, thermoelastic, small-strain model is used for the solids, a modified Fried-Howard equation of state (EOS) is used for the liquid, and the ideal gas EOS is used for the gas components. Phase and chemical changes are characterized as reactions that require the specification of the rates of change. We describe an ignition event that heats one end of the HMX slab. The subsequent sequence of events includes phase change, melting and the generation of gas reactants that burn to gas products. The one-dimensional profiles and histories of the density, stress, strain, displacement, mass fractions, and temperature of the mixture are computed.
AB - We present a model for the ignition of HMX that uses the Gibbs formulation, in which the stress tensor and temperature are assumed to be in local equilibrium, but phase and chemical changes are not. We assume multi-components for HMX, that includes beta and delta solid phases, a liquid phase, and reactant and gas products. An isotropic, thermoelastic, small-strain model is used for the solids, a modified Fried-Howard equation of state (EOS) is used for the liquid, and the ideal gas EOS is used for the gas components. Phase and chemical changes are characterized as reactions that require the specification of the rates of change. We describe an ignition event that heats one end of the HMX slab. The subsequent sequence of events includes phase change, melting and the generation of gas reactants that burn to gas products. The one-dimensional profiles and histories of the density, stress, strain, displacement, mass fractions, and temperature of the mixture are computed.
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U2 - 10.1063/1.5044897
DO - 10.1063/1.5044897
M3 - Conference contribution
AN - SCOPUS:85049807326
T3 - AIP Conference Proceedings
BT - Shock Compression of Condensed Matter - 2017
A2 - Knudson, Marcus D.
A2 - Brown, Eric N.
A2 - Chau, Ricky
A2 - Germann, Timothy C.
A2 - Lane, J. Matthew D.
A2 - Eggert, Jon H.
PB - American Institute of Physics Inc.
T2 - 20th Biennial American Physical Society Conference on Shock Compression of Condensed Matter, SCCM 2017
Y2 - 9 July 2017 through 14 July 2017
ER -