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Title: Shock temperature dependent rate law for plastic bonded explosives

A reactive flow model for the tri-amino-tri-nitro-benzene (TATB) based plastic bonded explosive PBX 9502 (95% TATB, 5% polymeric binder Kel-F 800) is presented. This newly devised model is based primarily on the shock temperature of the material, along with local pressure, and accurately models a broader range of detonation and initiation scenarios. Specifically, sensitivity changes to the initial explosive temperature are accounted for naturally and with a single set of parameters. The equation of state forms for the reactants and products, as well as the thermodynamic closure of pressure and temperature equilibration, are carried over from the Wescott-Stewart-Davis (WSD) model [Wescott et al., J. Appl. Phys. 98, 053514 (2005) and “Modeling detonation diffraction and dead zones in PBX-9502,” in Proceedings of the Thirteenth International Detonation Symposium (2006)]. This newly devised model, with Arrhenius state dependence on the shock temperature, based on the WSD equation of states, is denoted by AWSD. In conclusion, modifying an existing implementation of the WSD model to the AWSD model in a hydrocode is a rather straightforward procedure.
Authors:
ORCiD logo [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Report Number(s):
LA-UR-17-31402
Journal ID: ISSN 0021-8979
Grant/Contract Number:
AC52-06NA25396
Type:
Accepted Manuscript
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 123; Journal Issue: 14; Journal ID: ISSN 0021-8979
Publisher:
American Institute of Physics (AIP)
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE
OSTI Identifier:
1481143
Alternate Identifier(s):
OSTI ID: 1432419

Aslam, Tariq Dennis. Shock temperature dependent rate law for plastic bonded explosives. United States: N. p., Web. doi:10.1063/1.5020172.
Aslam, Tariq Dennis. Shock temperature dependent rate law for plastic bonded explosives. United States. doi:10.1063/1.5020172.
Aslam, Tariq Dennis. 2018. "Shock temperature dependent rate law for plastic bonded explosives". United States. doi:10.1063/1.5020172.
@article{osti_1481143,
title = {Shock temperature dependent rate law for plastic bonded explosives},
author = {Aslam, Tariq Dennis},
abstractNote = {A reactive flow model for the tri-amino-tri-nitro-benzene (TATB) based plastic bonded explosive PBX 9502 (95% TATB, 5% polymeric binder Kel-F 800) is presented. This newly devised model is based primarily on the shock temperature of the material, along with local pressure, and accurately models a broader range of detonation and initiation scenarios. Specifically, sensitivity changes to the initial explosive temperature are accounted for naturally and with a single set of parameters. The equation of state forms for the reactants and products, as well as the thermodynamic closure of pressure and temperature equilibration, are carried over from the Wescott-Stewart-Davis (WSD) model [Wescott et al., J. Appl. Phys. 98, 053514 (2005) and “Modeling detonation diffraction and dead zones in PBX-9502,” in Proceedings of the Thirteenth International Detonation Symposium (2006)]. This newly devised model, with Arrhenius state dependence on the shock temperature, based on the WSD equation of states, is denoted by AWSD. In conclusion, modifying an existing implementation of the WSD model to the AWSD model in a hydrocode is a rather straightforward procedure.},
doi = {10.1063/1.5020172},
journal = {Journal of Applied Physics},
number = 14,
volume = 123,
place = {United States},
year = {2018},
month = {4}
}

Works referenced in this record:

Detonation waves in PBX 9501
journal, December 2006