THE EFFECT OF LARGE PRESTRAINS ON FATIGUE

Evaluation of the fatigue bahavior of stamped parts requires a knowledge of the effects of large prestrains on fatigue. This paper reports the results of a test program carried out to investigate the effect of tensile and rolling prestrains on the fatigue strength of SAE 101 and Maxiform 50 steels. Large rolling-induced prestrains were shown to cause a significant increase, while large tensile prestrains (up to 0.9 times the true fracture strain of the steel) caused a moderate increase in the long- life fatigue properties of these steels. Still larger tensile prestrains (0.95 times the true fracture strain) caused the fatigue strength to reduce to its initial value.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00144851
• Corporate Authors:

  Society for Experimental Stress Analysis

  21 Bridge Square
  Westport, CT  United States  06880
• Authors:
  • Libertiny, G Z
  • Topper, T H
  • LEIS, B N
• Publication Date: 1977-2

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 64-68
• Serial:
  • Experimental Mechanics
  • Volume: 17
  • Issue Number: 2
  • Publisher: Society for Experimental Mechanics
  • ISSN: 0014-4851

Subject/Index Terms

• TRT Terms: Evaluation; Fatigue (Mechanics); Fatigue strength; Rolling; Steel; Strain (Mechanics); Tension; Testing
• Old TRIS Terms: Strains
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00149856
• Record Type: Publication
• Files: TRIS
• Created Date: Apr 27 1977 12:00AM