DETONATION OF A CYLINDER OF HIGH EXPLOSIVE CONTAINING AN AXIAL CORE OF PYROTECHNIC COMPOSITION
PICATINNY ARSENAL DOVER NJ FELTMAN RESEARCH LABS
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In order to determine whether an explosive based on the complete combustion of aluminum within the detonation zone would be superior to existing explosives, observations were made of the detonation behavior of a composite, consisting of an outer cylindrical shell of 9404 explosive OD 1.5 inches, ID 0.5 inch and an inner cylindrical core of 6040 potassium perchlorate aluminum OD 0.5 inch. The explosive shell was in the form of two cylinder- halves. The 6040 insert consisted of pressed pellets, of density 2.35 gcm3. These experimental results showed the following jet effects in the residual space between the cylinder-halves the 6040 detonation always propagating at a rate set by side initiation and compression by the 9404 the aluminum combustion completed as an afterburning process, rather than forward of the Chapman-Jouguet plane. Computer calculations of the ideal detonation velocity of the 6040 predicted speeds of 6685 ms and 7442 ms for densities of 2.25 and 2.50 respectively. It was concluded that the 6040 composition can not be made to provide an explosive superior to 9404.
- Ammunition and Explosives