Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4986111 | Tribology International | 2017 | 14 Pages |
Abstract
This work presents a methodology for fretting fatigue life estimation based on the evaluation of a multiaxial fatigue parameter at a critical distance below the contact surface. The fatigue parameter is defined using the Modified Wöhler Curve Method together with a measure of shear stress amplitude based on the Maximum Rectangular Hull concept. To apply the approach in the medium-cycle fatigue regime, the critical distance is assumed to depend on the fatigue life. Available fretting fatigue experiments conducted on a cylinder-on-flat contact configuration made of Al-4%Cu alloy were used to evaluate the methodology. Most of the fatigue life estimates were within factor-of-two boundaries.
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Authors
J.A. Araújo, L. Susmel, M.S.T. Pires, F.C. Castro,