XDT in HTPB propellant from steel flyer plate impact tests

Tanaka, Katsumi; Noda, Keiichiro; Hyodo, Yukio; Nakamura, Hiroyuki; Kosaka, Katsuaki; Nakayama, Takashi; Katayama, Masahide; Takeba, Atsushi
April 2000
AIP Conference Proceedings;2000, Vol. 505 Issue 1, p667
Academic Journal
Several experiments simulating ground impact explosion following the command destruction of a launch vehicle have been performed using HTPB propellant samples of mass 460 to 940kg impacted by a steel flyer plate. Impact velocities were varied from 135m/s to 170m/s. Strong explosions were observed at impact velocities higher than 150m/s for tests of solid rocket propellant weighing 460kg. The XDT (Unknown to Detonation Transition) is studied using a bulk failure reaction model including strain rate effect. Computational results are compared with observed blast waves for various impact velocities. The present model has been successfully applied to 22 inch Critical Diameter tests for SRMU HTPB propellant.


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