A continuum theory for shock induced heating of metalized explosive

Document Type

Conference Proceeding

Publication Date

12-1-2009

Abstract

A well-developed continuum theory for DDT in granular explosive is generalized to account for the existence of an arbitrary number of condensed phases and a gas product phase. Formulation of the more generic theory is motivated by a desire to model both low and high pressure impact of metalized explosive for which the metal and explosive phases may have distinct thermodynamic states. The theory is consistent with the strong form of the dissipation inequality and allows for flexible partitioning of dissipation between phases. The theory is applied to inert impact of aluminized HMX in the limit of low gas pressure. It is shown that the partitioning of compaction potential energy between the phases significantly affects equilibrium phase pressures but minimally affects compaction dissipation within waves. © 2009 American Institute of Physics.

Publication Source (Journal or Book title)

AIP Conference Proceedings

First Page

444

Last Page

447

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