Theory and analysis of non-ideal detonation for RDX-metal mixtures

Document Type

Conference Proceeding

Publication Date

12-1-2006

Abstract

An experimental and theoretical study is performed to characterize how the inclusion of reactive metal affects steady detonation of the secondary high explosive RDX (C3H6N6O6). Rate stick tests on aluminized RDX indicate that low concentrations of UFG aluminum (mass fraction Λ0m m = 0:1) appear to have little net effect on detonation wave speed relative to identical concentrations of micro-size aluminum. However, 50 nm aluminum appears to signicantly decrease relative wave speed when present in larger concentrations (Λ0m m = 0:3). The theoretical study establishes existence criteria and determines steady wave structure based on a multiphase description that accounts for RDX combustion, metal phase change, condensed and gas phase metal oxidation, heat transfer between the neat explosive and metal phases, and aluminum oxide passivation. Predicted implications of metal grain size on detonation wave propagation and structural stability are highlighted.

Publication Source (Journal or Book title)

Proceedings of the 13th International Detonation Symposium, IDS 2006

First Page

176

Last Page

186

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