Accession Number : AD0476684

Title :   STUDIES OF SOME BRITTLE FRACTURE CONCEPTS.

Descriptive Note : Final rept.,

Corporate Author : ILLINOIS UNIV AT URBANA

Personal Author(s) : Wright, R. N. ; Hall, W. J. ; Terry, S. W. ; Nordell, W. J. ; Erhard, G. R.

Report Date : SEP 1965

Pagination or Media Count : 86

Abstract : Interpretive studies based on available information of the low-stress brittle fracture behavior of mild steel are made to suggest additional guides for the evaluation of the fracture resistance of fabricated steel structures. An experimental investigation was conducted to investigate the influence of welding on the yield behavior of metal from the thermally affected zone in the vicinity of a weld. The study suggests that low-stress cleavage initiation at service temperatures can be associated with a marked local reduction of critical fracture stress, that residual stresses can be responsible for the propagation through sound metal of fractures initiated in damaged material, and that the critical fracture stress and fracture mechanics approaches are equivalent when applied to cleavage propagation and arrest. (Author)

Descriptors :   *FRACTURE(MECHANICS)), (*STEEL, SHIP HULLS, SHIP STRUCTURAL COMPONENTS, WELDS, STRESSES, BRITTLENESS, SHIP PLATES, TOUGHNESS, ELASTIC PROPERTIES, BIBLIOGRAPHIES.

Subject Categories : Metallurgy and Metallography
      Marine Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE