Accession Number : AD0696117

Title :   AN ATOMIC MODEL FOR CLEAVAGE CRACK PROPAGATION IN ALPHA IRON.

Descriptive Note : Technical rept.,

Corporate Author : BATTELLE MEMORIAL INST COLUMBUS OHIO COLUMBUS LABS

Personal Author(s) : Gehlen,P. C. ; Kanninen,M. F.

Report Date : SEP 1969

Pagination or Media Count : 24

Abstract : A preliminary study of the atomic arrangements at the tip of a cleavage crack in alpha iron (BCC) is described. Equilibrium configurations are calculated under each of a number of different applied tensile loads. From a detailed study of these configurations the critical point at which crack extension commence is estimated. (Author)

Descriptors :   (*IRON, *CRACK PROPAGATION), CONTINUUM MECHANICS, FRACTURE(MECHANICS), ATOMIC STRUCTURE, ANISOTROPY

Subject Categories : Metallurgy and Metallography
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE