Investigation of solid explosives initiation under shock waves

For investigating the characteristics of solid explosives initiated by shock waves,the Card Gap Test of JO-9195 explosive was carried out and recorded with high speed camera. The critical thickness of plexiglass clapboard to initiate the explosive was predicted. The shock initiation model of explosives was given. The numeicral simulations of explosive initiation were conducted. The pressure histories inside explosives under shock waves loading were calculated. The threshold pressure to initiate the explosive and the run distance of detonation were discussed.