A New Cumulative Damage Model: Part 1

[+] Author and Article Information
J. L. Bogdanoff

School of Aeronautics and Astronautics, Purdue University, W. Lafayette, Ind.

J. Appl. Mech 45(2), 246-250 (Jun 01, 1978) (5 pages) doi:10.1115/1.3424282 History: Received April 01, 1977; Revised December 01, 1977; Online July 12, 2010


A new history-dependent phenomenological model of cumulative damage is presented. It is a stochastic model. The model includes as an inherent part of its structure the major sources of variability encountered in fatigue and wear. The generality possessed by the model is much more in accord with the complexity of fatigue and wear processes than possessed by models in current use. It also implies that the frequent inaccuracies encountered in life prediction when using current models are not surprising and cannot be substantially reduced using such models.

Copyright © 1978 by ASME
Topics: Fatigue , Wear
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