STUDY ON IGNITION OF METAL ENVELOPED EXPLOSIVE BY LASER BEAM

The ignition of metal enveloped explosive by repetitively rulsed YAG laser and corresponding damaging mechanism and mode of metal/explosive structure are investigated from experiments. The relationship between laser output duration needed by ignition of metal enveloped RDX、PETN explosive and laser intensity is given. Preliminary computational simulation show that the laser output time needed by explosive ignition is obviously dependent on laser intensity and spot size ．