Accession Number:

ADA012758

Title:

Automatic End-On Fatigue Crack Measurements on Thick-Walled Cylinders.

Descriptive Note:

Technical rept.,

Corporate Author:

WATERVLIET ARSENAL N Y

Personal Author(s):

Report Date:

1975-05-01

Pagination or Media Count:

26.0

Abstract:

Thick walled cylinders exposed to repeated cycles of high internal pressure may fail by low-cycle fatigue. To develop design criteria and to set safe inspection standards, it is necessary to know not only the length, but the depth and shape of fatigue cracks. A technique has been developed for the accurate end-on measurement of crack depth using a normal beam ultrasonic probe. The accuracy and sensitivity are briefly described.

Subject Categories:

  • Test Facilities, Equipment and Methods
  • Guns

Distribution Statement:

APPROVED FOR PUBLIC RELEASE