Underground Ammunition Storage. Blast Propagation in the Tunnel System. Report II A. Chamber Pressure

Abstract

The purpose of the present work was to examine the pressure-time history for detonation and burning of various explosives in confined regions (chambers). In the detonation tests, a systematic study was performed for three types of explosives (TNT, PETN, and DYNAMITE) for different loading densities and chamber venting. Four additional explosives (AN/FO, RDX, ALUMIT, and COMP.B) were also tested over a limited range of loading densities in a closed chamber. To determine the maximum 'chamber pressure', carefully designed electrical filters were employed to remove the high frequency ringing in the pressure-time recordings. The results compare favourably with recent calculations of post- detonation pressures in closed and vented chambers. Some preliminary tests were performed to determine the ignitability for the explosives used in the detonation tests using the closed bomb method. For one explosive (PETN), the transition from burning to detonation was established.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1975
Accession Number
ADA027064

Entities

People

  • A. Jenssen
  • A. T. Skjeltorp
  • T. Hegdahl

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Ammunition
  • Blast
  • Burning Rate
  • Closed Bomb Tests
  • Combustion
  • Detonations
  • Dynamite
  • Explosions
  • Explosives
  • Frequency
  • Gages
  • Heat Loss
  • Materials Laboratories
  • Measurement
  • Ordnance Laboratories
  • Pressure Gages
  • Pressure Transducers

Readers

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