Accession Number : AD0706921

Title :   INVESTIGATION OF LOW-VELOCITY DETONATION PHENOMENA IN LIQUID PROPELLANTS, FUELS AND EXPLOSIVES.

Descriptive Note : Annual rept. 1 Mar 69-28 Feb 70,

Corporate Author : STANFORD RESEARCH INST MENLO PARK CALIF

Personal Author(s) : Wooten,D. C. ; Bredfeldt,H. R. ; Woolfolk,R. W. ; Kier,R. J.

Report Date : 30 MAR 1970

Pagination or Media Count : 66

Abstract : A reevaluation is made of existing low-velocity detonation (LVD) data to identify individual mechanisms contributing to LVD initiation and propagation in energetic liquid explosives. LVD is observed only in confined explosives. Container walls induce cavitation in the liquid ahead of a shock which compresses the cavities to produce hot spot ignition of the material. The wall interaction is investigated theoretically to show that precursor pressure waves of sufficient strength to cause cavitation are present. Properties of systems that influence LVD are examined and compared to observed phenomena. Experiments to examine the effects of confinement are described. Wall thickness is varied, keeping all other parameters constant. The results indicate that for a given system there is probably a single critical wall thickness that will support stable LVD.

Descriptors :   (*DETONATIONS, LIQUIDS), TANKS(CONTAINERS), BULKHEADS, DETONATION WAVES, INTERACTIONS, CAVITATION, REACTION KINETICS, SENSITIVITY, TEST METHODS, LIQUID ROCKET PROPELLANTS, FUELS, EXPLOSIVES

Subject Categories : Explosions

Distribution Statement : APPROVED FOR PUBLIC RELEASE