Mechanics of the Run Up on Linear Shaped Charges Cuttings
Run up is a factor in Linear Shaped Charge (LSC) cutting for which an account must be made. It occurs on the initiation segment of the charge, and the cutting performance during this period is significantly lower. Previous investigations by the UMR Explosives Group observed that similar effects occur not only with LSCs but a wide range of other explosives applications, including explosive-driven flux-compression generators. Prior to this investigation, it was believed that the main contributing factors to run up were from the combined effects of explosive run up (detonation pressure), lack of confinement at the free, initiation end of the charge, and penetrator transition from segmented pieces to a long-rod penetrator blade. As an initial step to understanding the mechanics of LSC run up, a series of investigations was performed in which the testing series was divided into several sub-categories (explosive detonation pressure run up, lack of confinement and long-rod penetrator concept) in order to reveal the effect of each on the run up. Predominantly, commercially manufactured LSCs were used for the investigation, and the entire testing was completed by the UMR Explosives Group.
S. Lim et al., "Mechanics of the Run Up on Linear Shaped Charges Cuttings," Proceedings of the annual conference on explosives and blasting technique, International Society of Explosives Engineers (ISEE), Jan 2006.
Mining and Nuclear Engineering
Keywords and Phrases
Detonation Pressure; Explosive Run Up; Linear Shaped Charge Cutting
Article - Conference proceedings
© 2006 International Society of Explosives Engineers (ISEE), All rights reserved.