CRITICAL LOAD CURVES FOR REBOUND CRACKING

Abstract

It is shown that, under an external load, a cylindrical plastic shell mounted on a steel mandrel can rebound at a velocity sufficient to cause cracking of the shield due to hoop tension. Using numerical calculations, critical load curves are found for the combinations of peak pressure and impulse which divide the loads that produce cracking from those that do not. These curves are found to be consistent with semigraphical solutions based on the method of characteristics. The latter method is also used to obtain critical load curves for spall. Experiments that verify the theory of rebound cracking are reported.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1967
Accession Number
AD0810471

Entities

People

  • G. R. Abrahamson
  • G. S. Samuelsen
  • W. Stuiver

Organizations

  • SRI International

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Boundaries
  • Composite Materials
  • Explosives
  • Geometry
  • Kinetic Energy
  • Method Of Characteristics
  • Modulus Of Elasticity
  • Numerical Analysis
  • Oscillators
  • Plastic Explosives
  • Stress Waves
  • Stresses
  • Tensile Stress
  • Thickness
  • Vacuum Chambers
  • Wave Propagation
  • Yield Strength

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Structural Dynamics.