A METHOD OF MEASURING CRACK PROPAGATION RATES IN BRITTLE MATERIALS

Abstract

A method of measuring the rate of crack propagation is described. The method, applicable to any specimen having a smooth surface across which brittle-type fracture will occur, is accomplished by means of a fine gridwork of conducting lines applied to the specimen by various vacuum deposition techniques. When a potential is applied to the grid, a direct reading of current (or distance) versus time is obtained with a strip chart recorder or equivalent device. The method has been applied to the study of brittle-type fracture associated with stress corrosion cracking observed in titanium alloys.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1967
Accession Number
AD0661814

Entities

People

  • J. Michael Kuronen
  • James W. Bieber
  • Ned M. Lowry
  • Owen R. Mulkey

Organizations

  • Boeing Commercial Airplanes

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aircrafts
  • Alloys
  • Coatings
  • Commercial Aircraft
  • Corrosion
  • Crack Propagation
  • Cracks
  • Films
  • Material Degradation Processes
  • Materials
  • Materials Processing
  • Metals
  • Physical Properties
  • Recording Systems
  • Stress Corrosion
  • Stress Corrosion Cracking
  • Vacuum Deposition

Readers

  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Materials Science (Mechanical Engineering).
  • Nanofabrication and Microfabrication.