Accession Number:

AD0818946

Title:

MEASUREMENT OF THE LENGTH OF A CENTRAL OR EDGE CRACK IN A SHEET OF METAL BY AN ELECTRICAL RESISTANCE METHOD.

Descriptive Note:

Technical rept.,

Corporate Author:

ROYAL AIRCRAFT ESTABLISHMENT FARNBOROUGH (UNITED KINGDOM)

Personal Author(s):

Report Date:

1966-12-01

Pagination or Media Count:

17.0

Abstract:

The change in length of an edge or central crack in a metal sheet can be obtained by measuring the change in electrical resistance of the sheet containing the crack. This paper gives the theory of the method and the results of a computer programme designed to provide detailed calibration curves. The method has been used to measure crack propagation rates during fatigue and the experimental procedure is described. Author

Subject Categories:

  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE