Accession Number:

AD0755172

Title:

Transition from Deflagration to Detonation in Granular Explosives

Descriptive Note:

Corporate Author:

NAVAL ORDNANCE LAB WHITE OAK MD

Personal Author(s):

Report Date:

1972-12-13

Pagination or Media Count:

126.0

Abstract:

Deflagration to detonation transition DDT has been observed for 91 9 RDXWax 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 973 and 946 RDX Wax and on ammonium picrate. Only the latter failed to undergo a transition to detonation in the apparatus used.

Subject Categories:

  • Ammunition and Explosives
  • Explosions

Distribution Statement:

APPROVED FOR PUBLIC RELEASE