SHOCK PROPAGATION AND FRACTURE IN 6061-T6 ALUMINUM FROM WAVE PROFILE MEASUREMENTS5

Abstract

The use of high-resolution, time-resolved measurements of rear surface velocity in shock loaded 6061-T6 aluminum is discussed as a means of studying spall fracture. The influence of stress pulse shape, material temperature, maximum compressive stress and degree of fracture on free surface motion is presented and correlated with maximum tensile stress at the spall plane. A summary of dynamic properties data (equation of state, elastic wave velocity, stress-strain-strain rate behavior, spall threshold) and a brief discussion on fracture in metals are also given.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1970
Accession Number
AD0705536

Entities

People

  • Douglas R. Christman
  • William M. Isbell

Organizations

  • General Motors

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Elastic Waves
  • Gas Guns
  • Guns
  • High Resolution
  • Impedance
  • Interferometers
  • Manufacturing
  • Materials
  • Mechanics
  • Shape
  • Shock Waves
  • Silica Glass
  • Stress Waves
  • Stresses
  • Tensile Stress
  • Thickness
  • Wave Propagation

Readers

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