MATEC Web Conf.
Volume 165, 201812th International Fatigue Congress (FATIGUE 2018)
|Number of page(s)||6|
|Section||Fretting and Contact Fatigue|
|Published online||25 May 2018|
A novel approach to predict fretting fatigue crack initiation
Ecole normale supérieure Paris-Saclay, 94230 Cachan, France
2 Safran Aircraft Engines, 77550 Moissy-Cramayel, France
* Corresponding author: email@example.com
This paper proposes a simplified approximation of the velocity fields close to the contact edge using non-local intensity factors and reference fields. This non-local description is not affected by size or gradient effects and leads to unique crack initiation boundaries. Linear intensity factor I represents the contribution of the elastic field on the total one and can be determined thanks to the macroscopic load even with coarse mesh. While the complementary intensity factor Ic describes the friction effect and is proportional to the size of the partial slip zone. The prediction of Ic using I through an incremental approach allows to predict the velocity fields for complex loadings and can be used to set up criteria to predict crack initiation.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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