Free-Field Stagnation Pressure and Impulse from a High Explosive Detonation in a Model Underground Storage Facility

Abstract

Results are presented from high-explosive (PETN) model tests conducted to determine free-field stagnation pressures and impulses produced by simulated underground chamber/tunnel explosions. The model consisted of a 1:50 scale, smooth, chamber/tunnel configuration with a converging area change. Internal side-on pressures and external side-on and stagnation pressures were measured as a function of chamber-charge loading density and external test-bed type (i.e., sand or plywood). Results of the tests indicate that the ratio of stagnation pressure to side-on pressure is dependent on terrain at the tunnel exit. Keywords: Underground explosions; Tunnels; Airblast/overpressure; Munition storage; Blast waves; Stagnation pressure; Underground storage; Stagnation impulse.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1990
Accession Number
ADA221035

Entities

People

  • Stephen J. Zardas

Organizations

  • Ballistic Research Laboratory

Tags

Communities of Interest

  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Blast
  • Blast Waves
  • Department Of Defense
  • Detonations
  • Engineering
  • Explosions
  • Explosives
  • Free Field
  • High Explosives
  • Materials
  • Military Research
  • Model Tests
  • Munitions
  • Overpressure
  • Stagnation Pressure
  • Standards
  • Test Beds

Readers

  • Explosive Engineering.
  • Fluid Dynamics.