| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 781185 | International Journal of Fatigue | 2011 | 13 Pages |
Abstract
Fatigue initiation from an artificial defect was investigated for a bainitic high strength roller bearing steel. Thin walled pipe specimens with small holes were subjected to multi-axial and non-proportional load cycles. The experimental fatigue crack positions around the hole were predicted with the Findley critical plane criterion. The criterion also ranked the severeness of three load sequences with respect to fatigue risk. Crack growth simulations and crack life measurements with strain gauges confirmed the ranking between the load sequences. Three uni-axial fatigue series with stress gradients were used to determine surface endurance data for the Findley criterion.
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Authors
Bo Alfredsson, Veronica Wåtz, Erik Olsson,