METHOD DETERMINING SENSITIVITY OF EXPLOSIVE CHARGE TO DYNAMIC ACTION OF LIQUID JET Russian patent published in 1998 - IPC

FIELD: study of sensitivity of explosive charges to dynamic loading. SUBSTANCE: in accordance with method there are conducted action of high-speed liquid jet on explosive charge, fixation and recording of dependencies of pressure on time and comparison of obtained dependencies with dependencies obtained in experiments with explosive test charges. Surface of explosive charge is subjected to action of high-speed liquid jet formed under action of plunger forced by powder charge. High-speed liquid jet is run through accelerating nozzle on to sample of explosive. Piezosensor registers pressure formed in blast chamber by reactions taking place. Experiments with detonation of test charges of explosive having various masses lesser than mass of examined explosive charge are carried out in advance. Obtained changes of pressure are recorded by piezosensor. Then obtained dependencies of change of pressure on test charges and examined charge of explosive are compared. EFFECT: increased accuracy of determination of rational and safe modes of washing out of explosives and reduced number of experiments required for it. 4 cl, 2 dwg