Accession Number : AD0602570

Title :   INVESTIGATIONS ON THE TRANSITION OF BURNING OF EXPLOSIVES INTO EXPLOSION,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Andreev,K. K. ; Chuiko,S. V.

Report Date : 25 FEB 1964

Pagination or Media Count : 21

Abstract : By a method of photographic registration of its speed and character the burning is studied, at constant increased pressures of inert gas (nitrogen) of three powdery secondary explosives --PETN, hexogen, and tetryl. In the region of low pressures the burning of powdery explosives of low density in speed and character does not differ from the burning of solid explosives. Above a certain pressure, increasing with an increase of relative density and a decrease of dimensions of particles, burning changes into accelerated regime. The average speed of burning in accelerated regime 10 -- 100 times exceeds the speed of normal burning, within limits of the charge is approximately constant and grows differently with pressure depending upon density and dimensions of particles. In the studied range of pressures (to 1000 technical atmospheres) and dimensions of charge, burning at constant pressure did not change into explosion. The relative stability of burning of powdery explosives at constant increased pressures in a significant measure is determined by the growth of dilution by inert gas with an increase of pressure. (Author)

Descriptors :   (*EXPLOSIVES, POWDERS), (*PETN, BURNING RATE), (*TETRYL, BURNING RATE), NITROCELLULOSE, NITRAMINES, HEAT OF REACTION, REACTION KINETICS, TRANSITION TEMPERATURE, TRANSPORT PROPERTIES, POROUS MATERIALS, PRESSURE, EXPLOSIONS, EXPLOSION GASES, USSR

Distribution Statement : APPROVED FOR PUBLIC RELEASE