Limiting resistance of an HMX-based explosive under shock-wave loading

The action of shock-wave loading on specimens of an OTK-90 explosive compos ition is studied, The limiting levels of loading that correspond to the ini tial stage of explosive conversion of the specimens impacted by steel plate s of different thickness are determined. The limiting resistance of the spe cimens subjected to the gliding detonation of a TP-83 plastic explosive thr ough a polyurethane-foam layer and also to the gliding and normal detonatio ns of a NIL-1 low-density explosive is examined. It is shown that the bound aries of the transition from the purely mechanical failure of OTK-90 to a m echanochemical reaction that were obtained by different methods of shock-wa ve loading agree well.