VERIFICATION OF A NEUBER-BASED NOTCH ANALYSIS BY THE COMPANION-SPECIMEN METHOD

Measurements of actual notch-root stress-strain behavior by means of the companion-specimen method are compared with predictions of the notch analysis using both a constant (long-life) fatigue-notch factor and a variable fatigue-notch factor determined from fatigue-life data. The results using cyclicly stabilized specimens, show that Kf is dependent upon the stress level or the degree of local straining. The amount of error incurred in the use of either the variable or constant Kf was about 7 percent in the prediction of the local strains. In addition, test results using specimens that had not been cyclicly hardened, and specimens subjected to a random-load history, indicated the effects of material- deformation phenomena such as cyclic hardening, stress-strain hysteresis- loop shape, and material memory, on local stress-strain predictions.

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  • Corporate Authors:

    Society for Experimental Stress Analysis

    21 Bridge Square
    Westport, CT  USA  06880
  • Authors:
    • Conle, A
    • Nowack, H
  • Publication Date: 1977-2

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 57-63
  • Serial:
    • Experimental Mechanics
    • Volume: 17
    • Issue Number: 2
    • Publisher: Society for Experimental Mechanics
    • ISSN: 0014-4851

Subject/Index Terms

Filing Info

  • Accession Number: 00149855
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 27 1977 12:00AM