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Predictions of Detonation Propagation Through Open Cell Foam Embedded in Chemically Sensitized Nitromethane
Author(s) -
Lieberthal Brandon,
Maines Warren Russell,
Stewart Donald Scott
Publication year - 2017
Publication title -
propellants, explosives, pyrotechnics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.56
H-Index - 65
eISSN - 1521-4087
pISSN - 0721-3115
DOI - 10.1002/prep.201600060
Subject(s) - detonation , nitromethane , materials science , explosive material , mechanics , shock (circulatory) , eulerian path , shock wave , mesoscale meteorology , strain rate , composite material , thermodynamics , physics , chemistry , medicine , organic chemistry , lagrangian , meteorology , mathematical physics
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.