ASSESSMENT OF ALLOWABLE MAXIMUM CRACK SIZE IN TOE HAZ OF WELDED LOW ALLOY STEEL COMPONENTS

A suitable method to evaluate an allowable maximum defect size at toe HAZ in welded low alloy steel components is described by making use of a stress intensity factor expression for a part through thickness crack. Taking into account the fracture characteristics of the toe HAZ and the existence of triaxial welding residual stress, the geometry of the allowable maximum defect is determined in terms of the depth and length of the defect. Practical examples of the low stress brittle fracture in the welded structures are discussed.

  • Corporate Authors:

    Tohoku University

    Department of Engineering Science, Katahira 2-chome
    Sendai,   Japan 
  • Authors:
    • Suzuki, M
    • TAKAHASHI, H
    • Saito, M
  • Publication Date: 0

Media Info

  • Features: References;
  • Pagination: 23 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00184180
  • Record Type: Publication
  • Source Agency: Tohoku University
  • Report/Paper Numbers: IIW X-903-78
  • Files: TRIS
  • Created Date: Dec 12 1978 12:00AM