A New Physically Based Model for Predicting the Fatigue Life Distribution of Rolling Bearings

R Fougères; G Lormand; A Vincent; D Nelias; G Dudragne; D Girodin; G Baudry; P Daguier

doi:10.1520/STP10855S

SYMPOSIA PAPER Published: 01 January 2002

STP10855S

A New Physically Based Model for Predicting the Fatigue Life Distribution of Rolling Bearings

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The available models are unable to estimate the fatigue life distribution of bearings explicitly taking into account material parameters. This paper presents a new model, that has been developed from a detailed analysis of damage mechanisms, for the prediction of the failure of rolling bearings operating under rolling fatigue conditions. The new approach introduces both nucleation and growth of microcracks present, or not, at the surface of the contact in the presence, or not, of inclusions. The distribution of fatigue lives is given for different loading conditions corresponding to smooth, rough or indented contacts. A good agreement is observed between the theoretical and experimental results.

Author Information

Fougères, R

INSA LYON

Lormand, G

INSA LYON

Vincent, A

INSA LYON

Nelias, D

SNR

Dudragne, G

Girodin, D

INSA LYON

Baudry, G

Daguier, P

Ascometal fatigue group

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Details

Developed by Committee: A01

Pages: 197–212

DOI: 10.1520/STP10855S

ISBN-EB: 978-0-8031-5466-7

ISBN-13: 978-0-8031-2894-1

A New Physically Based Model for Predicting the Fatigue Life Distribution of Rolling Bearings

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