Abstract
ABSTRACTAn annular-shaped booster pellet has been developed in order to study the capability of such a design to initiate the detonation of insensitive high explosives (IHE). The detonation characteristics of an annular booster design were studied theoretically by numerical simulation and experimentally. Results showed that if the annular booster pellet were detonated simultaneously at four symmetrical points, the detonation wave collision could be achieved within the pellet. The pairs of impacts of the four detonation wavefronts generated enhanced shock pressures in four radially symmetric directions. The tangential energy flow from the collision of detonation plays a major part in improving the initiation capability of an annular booster pellet. The numerical simulation is qualitatively consistent with the experimental results.
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