Accession Number:

ADA128197

Title:

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

Descriptive Note:

Aeronautical note,

Corporate Author:

NATIONAL RESEARCH COUNCIL OF CANADA OTTAWA (ONTARIO)

Personal Author(s):

Report Date:

1983-01-01

Pagination or Media Count:

16.0

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

Subject Categories:

  • Numerical Mathematics
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE