The Effective Length of a Crack Terminated by a Hole (La Longueur Efficace d'une Fissure qui Aboutit a un Trou).

Abstract

The influence of a small hole at the tip of a crack on the compliance of a cracked specimen is examined. It is shown tha the compliance of the specimen with a hole is the same as the compliance of a specimen with an infinitely sharp but slightly longer crack, the increment of length being proportional to the radius of the hole. In the case of mode III straining (the tearing mode) the equivalent sharp crack extends beyond the edge of the hole a distance equal to the radius of the hole. The results are pertinent to the experimental measurement of stress intensity factors. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1983
Accession Number
ADA128197

Entities

People

  • G. R. Cowper

Organizations

  • National Research Council Canada

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Boundaries
  • Crack Tips
  • Cracks
  • Dead Reckoning
  • Displacement
  • Equations
  • Integrals
  • Materials Laboratories
  • Mathematical Analysis
  • Measurement
  • Mechanical Engineering
  • Mechanics
  • Modulus Of Elasticity
  • Potential Energy
  • Shear Modulus
  • Stress Intensity Factors
  • Stresses

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Materials Science (Mechanical Engineering).
  • Small Business Innovation Research Program (SBIR) EDI Research and Innovation.