Predictions of Detonation Propagation Through Open Cell Foam Embedded in Chemically Sensitized Nitromethane

Brandon Lieberthal, Warren Russell Maines, Donald Scott Stewart

Research output: Contribution to journalArticlepeer-review

Abstract

We report results of Eulerian hydrodynamic simulations of detonation shock waves propagating through open cell foams constructed of aluminum, polymethylmethacrylate, and lead at approximately 20 % relative density in nitromethane. By varying pore sizes, as well as material impedance, we predict the dynamic responses at the mesoscale using a reactive flow model in the ALE3D software package. We explain predictions of the detonation profile of each explosive system, along with the stress-strain response of the foams therein. Finally, we describe predictions of a radially expanding detonation front and apply the theory of Detonation Shock Dynamics to the expansion rate of the shock front.

Original languageEnglish (US)
Pages (from-to)329-336
Number of pages8
JournalPropellants, Explosives, Pyrotechnics
Volume42
Issue number3
DOIs
StatePublished - Mar 1 2017

Keywords

  • Detonation shock dynamics
  • Heterogeneous explosives
  • Nitromethane
  • Open cell foam
  • Stress-strain response

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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