Accession Number:

AD0429004

Title:

INVESTIGATION OF THE BASIC MECHANISM OF METAL FATIGUE

Descriptive Note:

Quarterly engineering progress rept. no. 2, 1 Oct-31 Dec 1963

Corporate Author:

REPUBLIC AVIATION CORP FARMINGDALE NY

Personal Author(s):

Report Date:

1964-01-23

Pagination or Media Count:

41.0

Abstract:

Improved methods were devised for electrochemical cutting and chemical polishing of single crystal copper test specimens. The mechanical loading system designed for the cyclic deformation of single crystals was calibrated and the reliability of strain measurements was determined. Measurements were made of the attenuation of longitudinal waves propagating through 110 oriented single crystals of copper during cyclic deformation. A general review The Use of High Frequency Ultrasonic Measurements to Study the Effects of Dislocations on the Mechanical Properties of Crystalline Solids is included as an Appendix.

Subject Categories:

  • Military Aircraft Operations
  • Crystallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE