Detonation behavior of LX-14 and PBX-9404: theoretical aspect. [Thermodynamic and hydrodynamic paths after detonation]

Conference · Fri Mar 01 04:00:00 EST 1985

OSTI ID:5780280

Ree, F H; van Thiel, M

We recently developed an a priori theory of statistical mechanics to describe post-detonation behavior of explosives. It is based on (1) reliable intermolecular potentials, (2) an accurate statistical mechanical theory of mixtures, and (3) an efficient technique to handle reactive multiphase mixtures. We have computed the detonation properties of LX-14 and PBX-9404. The Gibbs free energy of the mixture indicates that nitrogen will phase-separate from the rest of detonation products as do graphite or diamond. The theoretical Chapman-Jouguet (CJ) detonation velocities agree well with experiment, but the CJ pressures show a small discrepancy. We suggest that CJ experiments have been insensitive to slow carbon formation. Theoretical results of overdriven shocks, the CJ adiabat, and several useful fits to the theory are discussed. 30 references, 7 figures, 5 tables.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5780280
• Report Number(s): UCRL-92420; CONF-850706-13; ON: DE85010038
• Country of Publication: United States
• Language: English

Related Subjects

45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
450100* -- Military Technology
Weaponry
& National Defense-- Chemical Explosions & Explosives
CARBON
CHEMICAL EXPLOSIVES
DATA
DETONATIONS
DIAMONDS
DISPERSIONS
ELEMENTAL MINERALS
ELEMENTS
ENERGY
EXPLOSIVES
FREE ENTHALPY
GRAPHITE
INFORMATION
MECHANICS
MINERALS
MIXTURES
NITROGEN
NONMETALS
NUMERICAL DATA
PHYSICAL PROPERTIES
STATISTICAL MECHANICS
THEORETICAL DATA
THERMODYNAMIC PROPERTIES