WEDGE PENETRATION IN A THICK TARGET.

Abstract

Analysis of the penetration of a wide wedge into a thick aluminum target was compared with penetration experiments at velocities from 1 to 500 ft/ sec. The penetration data follow the rough wedge solution at low velocity but approach the frictionless case at several hundred ft/sec. This behavior is ascribed to adiabatic heating and consequent softening of target material adjacent to the penetrator. It was concluded that a strain-rateinsensitive Tresca yield stress is a satisfactory constitutive equation for the material but that work-hardening and thermal phenomena must be included for accurate analysis. (Author)

Document Details

Document Type
Technical Report
Publication Date
May 28, 1964
Accession Number
AD0601773

Entities

People

  • William G. Soper

Organizations

  • Naval Surface Warfare Center Dahlgren Division

Tags

DTIC Thesaurus Topics

  • Aluminum
  • Constitutive Equations
  • Differential Equations
  • Equations
  • Equations Of State
  • Hardening
  • Materials
  • Mathematics
  • Partial Differential Equations
  • Softening

Readers

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