Using dislocation pileup theory, a model is given for the prediction of crack initiation life under contact fatigue. Near surface crack initiation is investigated by introducing the sliding contact boundary condition. Crack initiation originated at the surface and substrate are treated as extreme cases. The new model physically explains how a surface crack can be initiated and shows that the surface crack initiation life should be shorter than the subsurface crack initiation life under the same stress amplitude conditions. A discussion is given about the influence of residual stress, hardness, temperature, irreversibility of the plastic deformation, as well as other parameters that affect the crack initiation life. Preliminary comparisons show that the new model agrees well with the experimental observations of surface and near surface crack initiation.
Skip Nav Destination
Article navigation
January 1994
Research Papers
Micromechanics Modeling of Crack Initiation Under Contact Fatigue
W. Cheng,
W. Cheng
Center for Engineering Tribology, Northwestern University, Evanston, IL 60208
Search for other works by this author on:
H. S. Cheng,
H. S. Cheng
Center for Engineering Tribology, Northwestern University, Evanston, IL 60208
Search for other works by this author on:
T. Mura,
T. Mura
Center for Engineering Tribology, Northwestern University, Evanston, IL 60208
Search for other works by this author on:
L. M. Keer
L. M. Keer
Center for Engineering Tribology, Northwestern University, Evanston, IL 60208
Search for other works by this author on:
W. Cheng
Center for Engineering Tribology, Northwestern University, Evanston, IL 60208
H. S. Cheng
Center for Engineering Tribology, Northwestern University, Evanston, IL 60208
T. Mura
Center for Engineering Tribology, Northwestern University, Evanston, IL 60208
L. M. Keer
Center for Engineering Tribology, Northwestern University, Evanston, IL 60208
J. Tribol. Jan 1994, 116(1): 2-8 (7 pages)
Published Online: January 1, 1994
Article history
Received:
March 14, 1992
Revised:
December 29, 1992
Online:
June 5, 2008
Citation
Cheng, W., Cheng, H. S., Mura, T., and Keer, L. M. (January 1, 1994). "Micromechanics Modeling of Crack Initiation Under Contact Fatigue." ASME. J. Tribol. January 1994; 116(1): 2–8. https://doi.org/10.1115/1.2927042
Download citation file:
Get Email Alerts
Related Articles
A Mechanism-Based Approach From Low Cycle Fatigue to Thermomechanical Fatigue Life Prediction
J. Eng. Gas Turbines Power (July,2016)
Fatigue of As-Fabricated Open Cell Aluminum Foams
J. Eng. Mater. Technol (January,2005)
Green’s Function of a Bimaterial Problem With a Cavity on the Interface—Part I: Theory
J. Appl. Mech (May,2005)
A Superposition Framework for Discrete Dislocation Plasticity
J. Appl. Mech (November,2004)
Related Proceedings Papers
Related Chapters
Concluding Remarks and Future Work
Ultrasonic Welding of Lithium-Ion Batteries
Understanding the Problem
Design and Application of the Worm Gear
Three-Dimensional Cracked Configurations
The Stress Analysis of Cracks Handbook, Third Edition