Contact Fatigue Life Prediction under EHL Contact

2005 ◽  
pp. 22-27
Author(s):  
Tae Wan Kim ◽  
Sang Don Lee ◽  
Yong Joo Cho
Keyword(s):  
Fatigue Life ◽  
Life Prediction ◽  
Contact Fatigue ◽  
Fatigue Life Prediction ◽  
Contact Fatigue Life ◽  
Ehl Contact

scholarly journals Study on Contact Fatigue Life Prediction for Clasp Joint Structure of Mooring Buoy

2012 ◽  
Vol 2 (2) ◽  
pp. 29-35 ◽  
Author(s):  
Zifan Fang ◽  
Daojia Du ◽  
Kongde He ◽  
Wenhui Shu ◽  
Qingsong He ◽  
...  
Keyword(s):  
Fatigue Life ◽  
Life Prediction ◽  
Contact Fatigue ◽  
Fatigue Life Prediction ◽  
Joint Structure ◽  
Contact Fatigue Life

Contact Fatigue Life Prediction under EHL Contact

2005 ◽  
Vol 297-300 ◽  
pp. 22-27
Author(s):  
Tae Wan Kim ◽  
Sang Don Lee ◽  
Yong Joo Cho
Keyword(s):  
Fatigue Life ◽  
Life Prediction ◽  
High Cycle Fatigue ◽  
Contact Fatigue ◽  
Elastohydrodynamic Lubrication ◽  
Cycle Fatigue ◽  
Rectangular Patch ◽  
Contact Fatigue Life ◽  
Crack Initiation Life ◽  
Ehl Contact

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.

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