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 (SAE)

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

Media Info

• Features: References;
• Pagination: 12 p.
• Serial:
  • Society of Automotive Engineers Preprint
  • Publisher: Society of Automotive Engineers (SAE)

Subject/Index Terms

• TRT Terms: Alloys; Automobile industry; Building materials; Fatigue (Physiological condition); Fatigue strength; Loads; Low alloy steel; Metals; Steel; Tensile strength; Vehicular materials; Welding
• Uncontrolled Terms: Loading
• Old TRIS Terms: Automobile materials; Metals and alloys
• Subject Areas: Geotechnology; Highways; Materials; Vehicles and Equipment; I34: Steels and Metals; I91: Vehicle Design and Safety;

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