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.
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Copyright © 1998 American Society of Civil Engineers.
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Published online: Feb 1, 1998
Published in print: Feb 1998
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