Cavity Expansion Experiments with Spherical Explosive Charges in Concrete

Abstract

Three experiments were conducted with 1-lb explosive spheres embedded in large concrete cylinders with flatpack stress gages and Dremin loop velocity gages surrounding the charge. In two tests, the charge was far from the boundaries and was fully contained. Radial stresses and velocities attenuated with range by approximately 1/r2.5. In the third test the charge was near the top surface of the concrete cylinder, and reflections perturbed the sphericity of the flow.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2009
Accession Number
ADA508554

Entities

People

  • J. D. Cargile
  • James K. Gran
  • John Q. Ehrgott Jr.

Organizations

  • Engineer Research and Development Center

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Air Force Research Laboratories
  • Boundaries
  • Concrete
  • Engineers
  • Explosions
  • Explosive Charges
  • Explosives
  • Materials
  • Materials Processing
  • Materials Science
  • Measurement
  • Radial Stress
  • Radial Velocity
  • Reflection
  • Stress Waves
  • Stresses

Readers

  • Explosive Engineering.
  • Mechanical Engineering/Mechanics of Materials.