Modeling unit cell interactions for the microstructure of a heterogeneous explosive: Detonation diffraction past an inert sphere

D. S. Stewart, J. B. Bdzil, J. W. Walter, T. Aida

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We describe an approach to model multi-phase blast explosive, which is primarily condensed explosive by volume with inert embedded particles. The asymptotic theory of detonation shock dynamics governs the detonation shock propagation in the explosive. The detonation shock moves at a normal speed that depends on the shock curvature. The shock angle with the particle boundary is also prescribed. We describe theory to predict the behavior of a collection of such detonation shock/particle interactions in the larger aggregate. A unit cell problem, of a detonation shock diffracting over a sphere, is analyzed by analytical and numerical means. The properties of an ensemble of such unit cell problems are discussed with implications for the macroscopic limiting behavior of the heterogeneous explosive.

Original languageEnglish (US)
Title of host publicationShock Compression of Condensed Matter - 2009 - Proceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter
Pages117-120
Number of pages4
DOIs
StatePublished - 2009
EventConference of the American Physical Society Topical Group on Shock Compression of Condensed Matter, 2009 APS SCCM - Nashville, TN, United States
Duration: Jun 28 2009Jul 3 2009

Publication series

NameAIP Conference Proceedings
Volume1195
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherConference of the American Physical Society Topical Group on Shock Compression of Condensed Matter, 2009 APS SCCM
CountryUnited States
CityNashville, TN
Period6/28/097/3/09

Keywords

  • Detonation shock dynamics
  • Detonation speed
  • Mesoscale model
  • Metalized explosives

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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