THE USE OF SOLID FOAMS AS DISTRIBUTED LOW DENSITY EXPLOSIVES IN WATER

Authors
  1. Anderson, J.
  2. Von Rosen, K.
  3. Pinco, M.
  4. Silva, G.
Corporate Authors
Defence Research Establishment Suffield, Ralston ALTA (CAN);903123
Abstract
The generation of reduced pressures and sustained impulses, using submersed foam explosives, appears to be a feasible application for the PETN/polyurethane foam explosive developed by MREL/DRES. Critical diameter of the foam spheres, comprised of 60% PETN/40% polyurethane foam and having a foam density of 0.6 g/cc, is less than 1". Unconfined critical gaps are approximately 75% of charge diameter at greater than 2" charge diameters, with the critical gap rapidly decreasing below 2" charge diameter. Confinement significantly increases the critical gap for the three charge diameters investigated. The use of a matrix of foam spheres appears to effectively increase the overall effective charge diameter of the explosive, resulting in an increased critical gap. The mechanism of detonation has been established.
Report Number
DRES-CR-15/88 — Contract Report (Final)
Date of publication
15 May 1988
Number of Pages
124
DSTKIM No
88-04371
CANDIS No
57575
Format(s):
Hardcopy;Originator's fiche received by DSIS

Permanent link

Document 1 of 1

Date modified: