Determination of detonation parameters of liquid high explosives

摘要

An experimental study of the detonation parameters and structure of the reaction zone for liquid high explosives (HEs), such as bis(2-fluoro-2,2-dinitroethyl)formal (FEFO), tetranitromethane (TNM), and nitromethane (NM) is performed. For each of these HEs, the time corresponding to the position of the Chapman-Jouguet point is determined: for FEFO, from experiments conducted at different charge diameters (a parts per thousand 300 ns); for TNM, at a fixed diameter but at different lengths (a parts per thousand 200 ns); and for NM, at the same diameter and length of the shell, but with detonation being initiated by different HE charge (a parts per thousand 50 ns). The particle velocity and pressure at the Chapman-Jouguet point for these explosives were measured. For TNM and NM, the dependence of the detonation velocity on the charge diameter was obtained.