OBSERVATIONS OF SHOCK-INDUCED PARTIALL REACTIONS IN HIGH EXPLOSIVE

摘要

The high speed photography, pressure measurements and numerical simulation of gap test of the high explosive have been carried out. The height of donor is 50 mm with 26 mm inner diameter, and that for acceptor charges is varied. When the gap length is 22.8 mm or large, the sympathetic detonation was not confirmed. Although the detonation does not occur, the gas expansion from the acceptor appears as the results of remarkable decomposition if the gap length approaches 23 mm. Those phenomena are very important on the point of view of the safety engineering. Finally, the parameters of initiation model which could reproduce the behaviors of high explosive around the critical condition were constructed.