Accession Number:

AD0729641

Title:

Comparison of Plane-Stress Fracture Toughness for Three Aluminum Sheet Alloys.

Descriptive Note:

Final rept.,

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON D C

Report Date:

1971-08-11

Pagination or Media Count:

12.0

Abstract:

A program for evolving analytical procedures to characterize the fracture resistance of high-strength sheet metals has been initiated. The first phase of this program is concerned with the development of a standard plane-stress test method for reliable characterization of high-strength sheet alloys. The test incorporates fracture mechanics principles to define the relationship between the stress and critical crack size at instability in terms of a single parameter. A center-cracked sheet panel has been selected as the most promising test-specimen configuration to investigate this relationship. Author

Subject Categories:

  • Aircraft
  • Metallurgy and Metallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE