ON THE EXPLICIT DETERMINATION OF THE CHAPMAN-JOUGUET PARAMETERS FOR AN EXPLOSIVE COMPOUND

摘要

This work re-examines earlier development and current advances of the shock Hugoniots in anticipation of developing an explicit solution to determine the Chapman-Jouguet (C-J) parameters for an explosive compound. A new and simple equation for the C-J specific density was obtained as a function of three measureable parameters: initial density, detonation velocity, and the heat of detonation. For the ratio of specific heats, γ, an explicit expression as a function of the C-J parameters was obtained. The relations were tested for the very well-characterized explosives PETN, HMX, RDX, TATB, TNT, and the calculated values obtained for the C-J parameters and γ compared very well with published experimental values. The equatiotis were then applied to a broad range of explosives types regardless of their heterogeneity or their physical state and the C-J parameters obtained compared very well with published values.