Shock temperature dependent rate law for plastic bonded explosives

Aslam, Tariq Dennis

doi:10.1063/1.5020172

Shock temperature dependent rate law for plastic bonded explosives

Journal Article · Sat Apr 14 00:00:00 EDT 2018 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.5020172· OSTI ID:1481143

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

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.

View Accepted Manuscript (DOE)

Research Organization:: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

Sponsoring Organization:: USDOE; USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: AC52-06NA25396

OSTI ID:: 1481143

Alternate ID(s):: OSTI ID: 1432419

Report Number(s):: LA-UR--17-31402

Journal Information:: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 14 Vol. 123; ISSN 0021-8979

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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Pressure-induced phase transition in 1,3,5-triamino-2,4,6-trinitrobenzene (TATB) Steele, Brad A.; Clarke, Samantha M.; Kroonblawd, Matthew P. Applied Physics Letters, Vol. 114, Issue 19 https://doi.org/10.1063/1.5091947	journal	May 2019

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