Accession Number:

AD0639666

Title:

AN INVESTIGATION OF THE INFLUENCE OF RESIDUAL STRESSES AND HETEROGENEOUS YIELDING ON BRITTLE FRACTURE.

Descriptive Note:

Final rept. 15 Jun 61-30 Apr 64,

Corporate Author:

ILLINOIS UNIV URBANA DEPT OF THEORETICAL AND APPLIED MECHANICS

Personal Author(s):

Report Date:

1966-09-01

Pagination or Media Count:

4.0

Abstract:

The problem of brittle fracture at low stresses in mild steel was separated into three phases a measurement of fracture toughness for initial crack extension from an artificial fatigue crack using concepts of linear elastic fracture mechanics, b measurement of fracture toughness for a running crack and for crack arrest, and c measurement of the reduction in fracture toughness for initial crack extension caused by one or a combination of embrittling factors including residual welding stresses, heat affected zone, compressive prestrain, hydrogen, irradiation and possibly certain atmospheres. Author

Subject Categories:

  • Metallurgy and Metallography
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE