Electrified Dynamic Tensile Extrusion of Hemispherical Nose Aluminum Projectiles

Abstract

The use of electrification to increase the velocity enhancement of aluminum projectiles during dynamic tensile extrusion is explored. Experiments were performed in both electrified and unelectrified configurations with impact velocities between 475 and 575 m/s. Photon Doppler velocimetry was used to determine velocities, and X-ray radiography and optical shadowgraphy were used for imaging. Specimen breakup times are discussed and the percentage increases in velocity for the lead particles are presented.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2022
Accession Number
AD1181631

Entities

People

  • Brian L. Wilmer
  • Colby T. Adams
  • Matthew J. Coppinger
  • Robert W. Jr Borys

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Aluminum
  • Capacitors
  • Data Acquisition
  • Electrodes
  • Extrusion
  • Flow
  • Hypervelocity Impact
  • Hypervelocity Projectiles
  • Impact
  • Lasers
  • Light Sources
  • Materials
  • Measurement
  • Metals
  • Military Research
  • Particles
  • Photons
  • Projectiles
  • Pulsed Lasers
  • Radiography
  • Simulations
  • X Rays

Fields of Study

  • Physics

Readers

  • Fluid Mechanics and Fluid Dynamics.
  • Mechanical Engineering/Mechanics of Materials.
  • Plasma Physics.