BibTeX:

@article{IJIRSTV5I6010,
     title={Influence of 2D versus 3D Modeling on the Fatigue Limit Calculations of Bearing Steels during Rolling Contact Fatigue},
     author={Anup Pandkar and Bryan Allison},
     journal={International Journal for Innovative Research in Science & Technology},
     volume={5},
     number={6},
     pages={22--30},
     year={},
     url={http://www.ijirst.org/articles/IJIRSTV5I6010.pdf},
     publisher={IJIRST (International Journal for Innovative Research in Science & Technology)},
}

Previous analytical/computational studies on the estimation of fatigue limit of bearing steels under Rolling Contact Fatigue (RCF) were based on the concept of absence of micro-plasticity near inclusions. However, these studies were based on 2D models rather than realistic 3D models. In present research, the influence of a simplifying 2D finite element modeling assumption on the accuracy of the predicted fatigue limit has been quantified. The results of this study show that a 2D FE model over-predicts the fatigue limit compared to a 3D model in the case of stiff inclusions, and substantially under-predicts it in the case of compliant inclusions and pores. There-fore, it is suggested that use of 3D modeling should be employed, and extreme care must be taken in interpreting the estimates of fatigue limit obtained from 2D models. On a broader scale, the outcomes of this study highlight key differences between 2D versus 3D modeling when studying complex fatigue failure mechanisms such as RCF.

Bearing Steels, Fatigue Limit, Finite Element Analysis, Inclusions, Microstructure, Micro-plasticity, Rolling Contact Fatigue