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Herbert S. Cheng -
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Contact fatigue; thin film lubrication; tribology of ceramics; polymers and ceramic coatings
Professor Cheng's main research thrusts in tribology are aimed at gaining basic understandings of the failure mechanisms in lubricated metallic and ceramic rolling and sliding contacts and developing analytical models to predict the failure conditions for these contacts.
He is involved in research related to gas lubrication, elastohydrodynamics, plastohydrodynamics, mixed lubrication, and failure in lubricated contacts. Currently, he is developing a computerized tribological information system to help industry to solve critical design problems in tribology.
Publications
Miller, G. R., L. M. Keer, and H. S. Cheng. On the mechanics of fatigue crack growth due to contact loading. Proceedings of the Royal Society of London, A. 397:197-209.
Cheng, H. S. 1985. Some physical interpretations of the average flow reynolds equation. Proceedings of the 1985 JSLE International Conference on Tribology, 217-22.
Chein, H. L., and H. S. Cheng. 1985. Thermohydrodynamic performance of smooth plane sliders. Proceedings of the 1985 JSLE International Conference on Tribology, 559-64.
Keer, L. M., and H. S. Cheng. 1986. Stress analysis and crack growth in concentrated contacts. Proceedings of the 12th Leeds-Lyon Symposium on Tribology, 10-22.
Zhu, D., and H. S. Cheng. Surface roughness effects on the point contact EHL. Forthcoming in Journal of Tribology.
Gangopadhyay, A. K., H. S. Cheng, and M. E. Fine. Friction and wear characteristics of titanium and chromium doped polycrystalline alumina. Forthcoming in STLE Transactions.
Lee, S. C., and H. S. Cheng. On the load-compliance relation and asperity temperatures between two rough sliding contacts with longitudinal roughness. Submitted to STLE Transactions.
Fine, M. E., A. K. Gangopadhyay, H. S. Cheng, J. Braza, L. M. Keer, and R. Worden. Failure mechanisms in ceramic sliding contacts. Forthcoming in Symposium of Ceramics Tribology, STLE.