Powder Compaction in the Axisymmetric Case


The interaction between shock waves in porous and powdered materials remains a important research area. This importance stems from the necessity of establishing optimum loading conditions for obtaining compacts with spatially uniform physical and mechanical properties. The present consideration shows that an increase in the decay time of the external pressure achieved either through increasing the explosive thickness or through increasing the value of the external load causes no decrease in the dimensions of the fractured region under a fixed value of detonation velocity. At the same time, as the propagation velocity of the detonation wave decreases, the fractured region shrinks substantially.