THE EFFECT OF RESIDUAL STRESS ON CRACK PROPAGATION IN HY-80 STEELS

Tests were conducted to determine the effect of residual stress on the rate of crack growth in HY-80 plate steel. A residual stress field, over and above that inherently present in as-quenched and tempered material, was induced by means of welding-in of a pre-cracked patch plate into the specimen body; a cyclic load, which would induce particular values of stress intensity, was then applied. From the ensuing test results, a growth rate relation was determined and compared to a similar relation obtained from like tests performed on specimens having zero weld-induced residual stress. (Author)

  • Corporate Authors:

    Southwest Research Institute

    Department of Structural Research
    San Antonio, TX  USA 
  • Authors:
    • Sherman, R
  • Publication Date: 1971-10-22

Media Info

  • Pagination: 19 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00025724
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: Intrm Rpt
  • Contract Numbers: N00014-70-C-0265
  • Files: TRIS
  • Created Date: Mar 28 1972 12:00AM