THE EFFECT OF TENSILE STRENGTH ON THE FATIGUE LIFE OF SPOT-WELDED SHEET STEELS

Tensile-shear spot-weld specimens were tested to determine the effect of base-metal tensile properties on fatigue life. Four sheet thicknesses were investigated. Base-metal yield strength ranged between 186 and 757 MPa (27 and 110 ksi). Results showed that fatigue life was independent of base-metal strength for lives greater than 10,000 cycles. At shorter lives, fatigue performance improved with increasing base-metal strength. For a given cyclic load range fatigue life increased at all lives with increasing sheet thickness. Fatigue results from both this and a previous study were used to develop a spot-weld fatigue design curve relating spot-weld tensile-shear fatigue life to the correlation parameter.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/01487191
• Supplemental Notes:
  • International Congress and Exposition, Detroit, Michigan, February 27-March 2, 1984.
• Corporate Authors:

  Society of Automotive Engineers (SAE)

  400 Commonwealth Drive
  Warrendale, PA  United States  15096
• Authors:
  • Davidson, J A
  • Imhof Jr, E J
• Publication Date: 1984

Media Info

• Features: Figures; References; Tables;
• Pagination: 10 p.
• Serial:
  • SAE Technical Paper
  • Publisher: Society of Automotive Engineers (SAE)
  • ISSN: 0148-7191
  • EISSN: 2688-3627
  • Serial URL: http://papers.sae.org/

Subject/Index Terms

• TRT Terms: Fatigue (Mechanics); Sheet metal; Spot welding; Steel; Tensile strength; Thickness; Yield strength
• Uncontrolled Terms: Fatigue life
• Subject Areas: Safety and Human Factors;

Filing Info

• Accession Number: 00452069
• Record Type: Publication
• Source Agency: National Highway Traffic Safety Administration
• Report/Paper Numbers: SAE 840110, HS-039 249
• Files: HSL, USDOT
• Created Date: Jan 31 1986 12:00AM