0
RESEARCH PAPERS

A Cumulative Damage Rule Based on the Knee Point of the S-N Curve

[+] Author and Article Information
S. Subramanyan

Mechanical Engineering, PSG College of Technology, Coimbatore, India

J. Eng. Mater. Technol 98(4), 316-321 (Oct 01, 1976) (6 pages) doi:10.1115/1.3443383 History: Received March 14, 1975; Revised August 02, 1975; Online August 17, 2010

Abstract

Making use of a set of isodamage lines, a fresh concept for predicting the fatigue life, under variable amplitude loading, is presented. It is assumed that all isodamage lines converge at the knee point of a S-log N diagram. The life predictions based on this concept are closer to the experimental data than given by Miner’s linear damage rule. The concept is verified with the step-test data obtained on unnotched C-35 steel specimens in rotary bending. Several other reported experimental data in rotary bending tests also confirm the reliability of this simple damage rule.

Copyright © 1976 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In