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) : Corten,H. T.

Report Date : SEP 1966

Pagination or Media Count : 4

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)

Descriptors :   (*STEEL, *FRACTURE(MECHANICS)), STRESSES, TOUGHNESS, BRITTLENESS, DEFORMATION, MEASUREMENT

Subject Categories : Metallurgy and Metallography
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE