Email this article Continuum approach to high-cycle fatigue. The finite life-time case with stochastic stress history
- Authors: Orelma H.1
-
Affiliations:
- Tampere University
- Issue: Vol 23, No 3 (2019)
- Pages: 452-463
- Section: Articles
- URL: https://ogarev-online.ru/1991-8615/article/view/20625
- DOI: https://doi.org/10.14498/vsgtu1705
- ID: 20625
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Abstract
In this paper, we consider continuum approach for high-cycle fatigue in the case where life-time is finite. The method is based on differential equations and all basic concepts are explained. A stress history is assumed to be a stochastic process and this leads us to the theory of stochastic differential equations. The life-time is a quantity, which tells us when the breakdown of the material happens. In this method, it is naturally a random variable. The basic assumption is, that the distribution of the life-time is log-normal or Weibull. We give a numerical basic example to demonstrate the method.
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##article.viewOnOriginalSite##About the authors
Heikki Orelma
Tampere University
Email: Heikki.Orelma@tuni.fi
Doctor of Science 4, Kalevantie, Tampere, 33100, Finland
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