An improved method for estimating fatigue life under combined stress
Date issued
2007
Journal Title
Journal ISSN
Volume Title
Publisher
University of West Bohemia
Abstract
The paper deals with a complicated problem of estimating fatigue lives of machine parts exposed to various
kinds of dynamic loading. An origin of the presented method can be found 25 years ago when a simple algorithm
of strain energy density cumulation was applied for evaluation of uniaxial harmonic and random fatigue tests.
Recently, the method has been adopted for multiaxial loading. Unfortunately, results of its application have shown
rather big variance. This paper presents the improved method, which yields much lower scattering of estimated
fatigue lives compared with earlier approaches.
Description
Subject(s)
zkoušení materiálu, únava materiálu, odhad životnosti
Citation
Applied and Computational Mechanics. 2007, vol. 1, no. 1, p. 1-10.