The Behavior of Shaped Charges with Open-Poled Hemispherical Liners

Abstract

This paper discusses the effect of an opening at the pole of a hemispherical shaped-charge liner. An experimental study was performed in which various diameter holes were made in otherwise similar shaped-charge liners. Flash radiographs were taken to observe changes in the liner collapse and the jet characteristics. The collapse process and jet characteristics of a hemispherical liner are significantly altered for a hole diameter which is 10% or more of the outer liner diameter. The jet tip velocity is increased by 26% for a hole diameter-to-liner diameter ratio of 0.25. Two explanations are presented for the behavior of the tip region of the shaped-charge jet. Both of the explanations assume that the pole of the liner impedes the motion of the subsequent liner material. Keywords: Holes openings; Shaped charges; Hemispherical liners; Flash radiography; Conical liners.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1990
Accession Number
ADA229151

Entities

People

  • R. D. Dick
  • R. L. Summers
  • W. P. Walters

Organizations

  • Ballistic Research Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Collapse
  • Diameters
  • Explosive Charges
  • Explosives
  • Geometry
  • Kinetic Energy
  • Materials
  • Measurement
  • Munitions
  • Research Facilities
  • Shape
  • Shaped Charge Jets
  • Shaped Charges
  • Spreadsheet Software
  • Test Facilities
  • X Rays

Fields of Study

  • Physics

Readers

  • Explosive Engineering.
  • Military Engineering.