Complete EOS for PBX 9502

Menikoff, Ralph S¹ 

[1] Los Alamos National Laboratory

关键词: COMPRESSION;    DIAMONDS;    EXPLOSIVES;    LATTICE VIBRATIONS;    POROSITY;    SCATTERING;    SPECIFIC HEAT;    TATB;   

DOI  :  10.2172/1043481
RP-ID  :  LA-UR-09-06529
RP-ID  :  LA-UR-09-6529
PID  :  OSTI ID: 1043481
Others  :  TRN: US201214%%133

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来源: SciTech Connect

【 摘 要 】

PBX 9502 is an insensitive plastic-bonded explosive based on triamino-trinitrobenzene (TATB). A complete equation of state (EOS) is constructed for unreacted PBX 9502 suitable for reactive burn models, i.e., high pressure regime in which material strength is unimportant. The PBX EOS is composed of two parts: a complete EOS for TATB and a porosity model which allows for variations in the initial PBX density. The TATB EOS is based on a cold curve and a thermal model for lattice vibrations. The heat capacity, and hence thermal model, is determined by the vibrational spectrum from Raman scattering. The cold curve is calibrated to diamond anvil cell data for isothermal compression using a two-piece Keane fitting form. Hugoniot data for PBX 9502 is used as a consistency check.