Transition from Deflagration to Detonation in Granular Explosives
Abstract
Deflagration to detonation transition (DDT) has been observed for 91/ 9 RDX/Wax over the range of 67 - 95% TMD. The initial process monitored was the propagation of a convective flame front through the porous charge. Some time after that a postconvective front was formed; it traveled at a greater speed and overtook the convective front. About 10 - 20 microseconds after this intersection and 10 - 20 mm beyond it, detonation appeared. Details of this proposed mechanism and their variation with compaction are fully described in the report. A few experiments at 70% TMD were also made on 97/3 and 94/6 RDX/ Wax and on ammonium picrate. Only the latter failed to undergo a transition to detonation in the apparatus used.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 13, 1972
- Accession Number
- AD0755172
Entities
People
- Donna Price
- Richard R. Bernecker
Organizations
- Naval Ordnance Laboratory