Contact Fatigue Life Prediction under EHL Contact
| Periodical | Key Engineering Materials (Volumes 297 - 300) |
|---|---|
| Main Theme | Advances in Fracture and Strength |
| 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 | Tae Wan Kim et al., 2005, Key Engineering Materials, 297-300, 22 |
| Online since | November, 2005 |
| Authors | Tae Wan Kim, Sang Don Lee, Yong Joo Cho |
| Keywords | Contact Fatigue, Crack Initiation Life, EHL Analysis, High Cycle Fatigue Criteria |
| Price | US$ 28,- |
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.