Abstract

The passage of a detonation wave through solid explosive can be described as the result of a reactive shock in the crystalline material and the transmission of spalled unreacted explosive across any air spaces which may be present. Calculation of the spall velocity can then be related to a particle velocity which is thought to be the von Neumann peak. This peak particle velocity is roughtly 20% higher than the Chapman-Jouguet (CJ) value at the highest densities and may exceed 30% at low explosive densities.

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