Accession Number : ADA119262

Title :   Modeling of Deflagration-to-Shock-to-Detonation Transition (DSDT) in Porous High Energy Solid Propellants and Explosives.

Descriptive Note : Annual rept. 1 Jun 81-30 May 82,

Corporate Author : ILLINOIS UNIV AT URBANA DEPT OF MECHANICAL AND INDUSTRIAL ENGINEERING

Personal Author(s) : Krier,Herman W ; Bulter,P Barry ; Coyne,Daniel

PDF Url : ADA119262

Report Date : Jul 1982

Pagination or Media Count : 30

Abstract : This annual report represents the summary of work done on the modeling of processes leading from deflagration to detonation in porous or granular high energy propellants. Particular attention is paid to the analysis of shock development from compression waves forming ahead of confined burning in the original material. It is summarized that if the shock is sufficiently strong, it will lead to shock to detonation transition (SDT). During the development of the shock wave, the porous material may collapse into a solid plug of void free propellant because the speed at which the wave propagates increases as the material is compressed. The modeling effort presented indicates how two-phase unsteady combustion processes in granular material can couple to the solid mechanics of shock formation and eventually to a steady-state detonation. (Author)

Descriptors :   *Detonations, *Deflagration, *High energy propellants, *High explosives, Models, Shock waves, Porosity, Transitions, Compression, Porous materials, Mechanics, Steady state

Subject Categories : Ammunition and Explosives

Distribution Statement : APPROVED FOR PUBLIC RELEASE