SENSITIVITY FUNDAMENTALS.
Abstract
In the study to learn if certain difluoroamino compounds sustain low velocity detonation (LVD) waves, research in this quarter was aimed at improving methods for detecting and studying Mach discs in confined liquids. These discs were proposed as a necessary precursor to LVD initiation. The behavior of oblique shock waves propagating from a metal wall into a confined liquid was analyzed and related to the temperatures and pressures along the liquid axis. This analysis was used to design experiments for detecting Mach reflections in the LVD initiation zone. Preliminary experiments gave promising results and are being continued with improvements. A striking example of the effect of molecular structure on one of the detonation characteristics was demonstrated for the DP isomers. The behavior was found to be significantly different from that of either isomers studied. The failure diameter of 1,1-DP matched that of 2,2-DP (about 4.0 mm) within the precision of the experiments, and 1,3-DP was indistinguishable from 1,2-DP (about 1.6 mm). Additional experiments on CR-39 plastic attenuators from 25 to 50 mm thick were performed, and preliminary calculations showed peak pressures below 40 kbars. The investigation of decomposition behavior of NF compounds in aqueous solution at low temperatures is continuing. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 15, 1966
- Accession Number
- AD0369532
Entities
People
- Adolph B. Amster
Organizations
- SRI International