Sensitivity of Explosives. 5, Transition from Slow Burning to Detonation in Cast Pentolite
Abstract
Cast, highly confined charges of 50/50 pentolite were initiated by electrically heated Nichrome wires with the energy input of 10 to 50 calories. Transition to detonation occurred in many cases. Detonation and sub-detonation velocities were measured at different Intervals along the charge by means of ionization probes. It is concluded that transition from slow burning to velocities of the order of magnitude of 1 km/sec. takes place within centimeters, or less, from the igniter. The subsequent development to steady state detonation may require tens of centimeters of travel. The latter portion of the transition process is qualitatively similar to the build up of shock Initiated detonation.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1957
- Accession Number
- AD0154534
Entities
People
- Andrej Macek
- Royce W. Gipson
Organizations
- Naval Ordnance Laboratory