Contact Fatigue Life Prediction under EHL Contact

Abstract:

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In this study, the simulation of contact fatigue based on stress analysis is conducted under Elastohydrodynamic Lubrication (EHL) state. To predict a crack initiation life accurately, it is necessary to calculate contact stress and subsurface stresses accurately. Contact stresses are obtained by contact analysis of a semi-infinite solid based on the use of influence functions and the subsurface stress is obtained using rectangular patch solutions. The numerical algorithm using newton-rapson method was constructed to calculate the EHL pressure. Based on these stress values, three multiaxial high-cycle fatigue criteria are used. As a result, the effects of EHL on contact fatigue life are calculated.

Info:

Periodical:

Key Engineering Materials (Volumes 297-300)

Edited by:

Young-Jin Kim, Dong-Ho Bae and Yun-Jae Kim

Pages:

22-27

DOI:

10.4028/www.scientific.net/KEM.297-300.22

Citation:

T. W. Kim et al., "Contact Fatigue Life Prediction under EHL Contact ", Key Engineering Materials, Vols. 297-300, pp. 22-27, 2005

Online since:

November 2005

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Price:

$35.00

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