Abstract
Abstract Flash x-radiographs were obtained of commercial No 8∗ strength aluminium tube detonators in cartridges of emulsion explosive at various times after fusehead operation. The trigger system for the radiography was based on the detection of light following fusehead firing via optical fibres inserted into the fusehead cavity during detonator assembly. These experiments were simulated using a finite element hydrocode with realistic treatment of the non-ideal reaction kinetics. Excellent agreement between the simulation and experiment was demonstrated for the shape and position of the shock waves. Initiation of the emulsion explosive was predominately forward from the detonator, with the initiation in the reverse direction towards the crimped end of the detonator exhibiting both corner turning of the detonation front and dynamic desensitization.
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