Modeling Threshold Velocity of Hemispherical and Ogival-Nose Tungsten-Alloy Penetrators Perforating Finite Aluminum Targets

Abstract

This study examines the ability of the CTH hydrocode to predict the effect of rod nose shape on the transition from rigid body to eroding rod penetration for tungsten alloy long rod penetrators perforating finite aluminum targets. Two rod nose shapes and two target alloys were considered. The rod nose shapes were hemispherical and ogival, and the target alloys were 7.62 cm thick 5083 and 7039 aluminum. Results are compared to an experimental study that delineated the effect of nose shape on the threshold velocity at which tungsten alloy penetrators transition from rigid body to eroding rod when perforating finite aluminum targets.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1998
Accession Number
ADA336131

Entities

People

  • Daniel R. Scheffler

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Advanced Materials
  • Alloys
  • Aluminum
  • Boundary Layer
  • Experimental Data
  • Geometry
  • Materials
  • Metals
  • Military Research
  • Plastic Deformation
  • Poisson Ratio
  • Simulations
  • Transitions
  • Tungsten
  • Tungsten Alloys
  • Two Dimensional
  • Yield Strength

Readers

  • Explosive Engineering.
  • Materials Science (Mechanical Engineering).
  • Structural Dynamics.