| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7225682 | Procedia Engineering | 2018 | 10 Pages |
Abstract
In order to predict the influence of the surface condition on the fatigue behaviour, a numerical approach based on the real surface topology has been developed. It is shown that the numerically identified crack initiation sites are in agreement with the experimental results. A probabilistic approach based on the weakest link concept, associated with the definition of a stress based crack initiation threshold has been integrated in a FE model. This approach leads naturally to a probabilistic Kitagawa type diagram, which in this case explains the relationship between the size defect and the scale effect on the fatigue strength.
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Authors
F. Abroug, E. Pessard, G. Germain, F. Morel, E. Chové,