Efficient Algorithm for Fatigue Life Calculations under Broad Band Loading Based on Peak Approximation
Publication: Journal of Engineering Mechanics
Volume 124, Issue 2
Abstract
In this paper, a new method of fast fatigue life prediction under broad band (BB) random loading is proposed, which is based on statistical theory of the peak distribution of a stationary Gaussian random process and the concept of equivalent stress range. The equivalent stress range in the model can be calculated directly by frequency domain parameters, obviating the need for cycle-by-cycle counting and damage summation. The new method offers a great advantage when compared with any other existing approximate methods that are based on the peak stress distribution.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Chaudhury, G. K., and Dover, W. D.(1985). “Fatigue analysis of offshore platforms subject to sea wave loading.”Int. J. Fatigue, 7(1), 13–19.
2.
Chow, C. L., and Li, D. L.(1991). “An analytical solution for fast fatigue assessment under wide-band random loading.”Int. J. Fatigue, 13(5), 395–404.
3.
Huston, W. B., and Skopinski, T. H. (1956). “Probability and frequency characteristics of some flight buffet loads.”NACA TN3733, NACA, Washington, D.C.
4.
Kam, J. C. P.(1990). “Recent development in the fast corrosion fatigue analysis of offshore structures under random wave loading.”Int. J. Fatigue, 12(6), 458–468.
5.
Kam, J. C. P., and Dover, W. D.(1988). “Part 2: fast fatigue assessment procedure for offshore structures under random stress history.”Proc. Inst. Civ. Engrg., 85, 689–700.
6.
Rice, S. O. (1955). “Mathematical analysis of random noise.”Selected papers on noise and stochastic processes, N. Wax, ed., Dover, New York.
7.
Wirsching, P. H. (1980). “Fatigue under wide band random stress.”J. Struct. Div. Am. Soc. Civ. Engrg., 1593–1606.
Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 124 • Issue 2 • February 1998
Pages: 233 - 236
Copyright
Copyright © 1998 American Society of Civil Engineers.
History
Published online: Feb 1, 1998
Published in print: Feb 1998
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.