On Adiabatic Shear Band Determinations by Surface Observations

Abstract

Two cracking mechanisms, adiabatic shear band cracking and ductile dimpled shear cracking, have been observed in hollow, right circular cylinders of AISI 4340 steel, which were explosively expanded in a quick-stop containment apparatus. It is concluded that distinction of cracking mechanisms cannot be made without the use of metallographic sectioning, as the external appearances of both types of cracks are identical. These exploding cylinder results demonstrate the inaccuracies associated with determining the presence or density of adiabatic shear bands only from surface observations.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1980
Accession Number
ADA085627

Entities

People

  • Michael R. Staker

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Acquisition
  • Ammunition
  • Electron Microscopy
  • Explosives
  • Fragmentation
  • Hardness
  • Heat Treatment
  • High Explosives
  • Materials
  • Materials Laboratories
  • Mechanics
  • Munitions
  • New York
  • Observation
  • Scanning Electron Microscopy
  • Shear Bands
  • United States

Readers

  • Combustion and Flow Dynamics.
  • Explosive Engineering.
  • Materials Science (Mechanical Engineering).