Abstract
Strong cylindrical imploding shock waves have been generated in PMMA by the simultaneous detonation of high explosive PBX shells. Surface initiation of the PBX shell begins at the collision of a cylindrical thin flyer driven by the detonation of a low-density PETN shell, which is initiated by the explosion of fine copper wire-rows using a high voltage impulsive current. As preliminary studies, shock initiation of the PBX, wire-row conditions for the PETN detonation and cylindrical flyer acceleration systems were investigated. Observed shadowgraphs of imploding shocks in PMMA cylinder (40mmφ dia.) show that cylindrical shock waves are focusing with a fairly good axisymmetry, but the comparison with the numerical results indicates that the actual steady state C-J pressure of the PBX seems to be on the way of build-up in this study.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
