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:
  • Corporate Authors:

    Society for Experimental Stress Analysis

    21 Bridge Square
    Westport, CT  USA  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

Filing Info

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