An empirical method for predicting detonation pressure of CHNOFCl explosives

Abstract

This paper describes a new method for prediction of the Chapman–Jouguet detonation pressures of CHNOFCl explosives using the heat of detonation, Q det, the number of moles of gaseous products of detonation per gram of explosive, α, and the average molecular weight of gaseous products, M. The equation has the form: P CJ=15.88 α( MQ det) 1/2 ρ 0 2−11.17, where P CJ is the Chapman–Jouguet detonation pressure and ρ 0 the loading density. Calculated P CJ by this procedure show good result with respect to measured detonation pressure for any pure or mixture of ideal and some of less ideal CHNOFCl explosives at ρ 0>0.8 g/cm 3.