A Probabilistic Model for Creep-Fatigue Failure

[+] Author and Article Information
D. G. Harlow, T. J. Delph

Department of Mechanical Engineering and Mechanics, Lehigh University, Bethlehem, PA 18015

J. Pressure Vessel Technol 119(1), 45-51 (Feb 01, 1997) (7 pages) doi:10.1115/1.2842265 History: Received August 01, 1995; Revised April 25, 1996; Online February 11, 2008


We outline here a method for incorporating the scatter observed in creep rupture times and fatigue cycles-to-failure into a probabilistic model for creep-fatigue failure. We do this within the context of the well-known damage fraction summation rule. Various numerical methods for calculating the probability of failure for given creep-fatigue loading cycles are discussed.

Copyright © 1997 by The American Society of Mechanical Engineers
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