FATIGUE OF WELDED HIGH STRENGTH LOW ALLOY STEELS

The effects of arc welding on the fatigue strengths of three high strength low alloy steels and 1006 mild steel for joint and loading configurations typical of automotive applications were investigated. It was found that the 10 to the 7th power cycle fatigue limit stresses of smooth specimens varied according to the tensile strengths while the fatigue characteristics of all four steels after welding were nearly identical in the 5 X 10 to the 5th power-10 to the 7th power cycle range. Long life fatigue data from both the smooth and welded specimens were used to determine the applicability of Peterson's Equation. A fatigue crack initiation study was conducted at the stress range that would result in a total life of 10 to the 5th power cycles for each alloy.

  • Supplemental Notes:
    • Prepared for SAE meeting 25-29 February 1980.
  • Corporate Authors:

    Society of Automotive Engineers

    400 Commonwealth Drive
    Warrendale, PA  USA  15096
  • Authors:
    • Ewing, KMW
    • Wilson, M L
    • Heimbach, R A
    • Watney, D K
    • Houchens, A F
  • Publication Date: 1980-2

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00325228
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Report/Paper Numbers: SAE 800374
  • Files: TRIS
  • Created Date: Apr 15 1981 12:00AM