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  United States 
• Authors:
  • Sherman, R
• Publication Date: 1971-10-22

Media Info

• Pagination: 19 p.

Subject/Index Terms

• TRT Terms: Cracking; Fracture mechanics; Residual stress; Stresses; Welds
• Uncontrolled Terms: Crack propagation
• Old TRIS Terms: Residual stresses; Weld stresses
• Subject Areas: Marine Transportation; Materials;

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