A necessary step in understanding failure problems of tribological elements is to investigate the contact performance of rough surfaces subjected to frictional heating. It is essential that the interfacial variables are obtained through solving the interactive thermomechanical contact problem. This paper studies the three dimensional thermomechanical contact of non-conforming rough surfaces, the model of which includes the normal surface displacements caused by the contact pressure, frictional shear, and frictional heating. Influence coefficients and frequency response functions for elastic and thermoelastic displacements, as well as those for temperature rises, are investigated for model construction. In order to develop an accurate and efficient solver, the numerical algorithms with the discrete convolution and fast Fourier transform techniques and the single-loop conjugated gradient method are used. The model modules are numerically verified and the thermomechanical performance of the rough surfaces in a point contact is studied.
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e-mail: liusb@northwestern.edu
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January 2001
Technical Papers
A Three-Dimensional Thermomechanical Model of Contact Between Non-Conforming Rough Surfaces
Shuangbiao Liu,
e-mail: liusb@northwestern.edu
Shuangbiao Liu
Department of Mechanical Engineering, Northwestern University, Evanston, IL 60208
Search for other works by this author on:
Qian Wang
Qian Wang
Department of Mechanical Engineering, Northwestern University, Evanston, IL 60208
Search for other works by this author on:
Shuangbiao Liu
Department of Mechanical Engineering, Northwestern University, Evanston, IL 60208
e-mail: liusb@northwestern.edu
Qian Wang
Department of Mechanical Engineering, Northwestern University, Evanston, IL 60208
Contributed by the Tribology Division for publication in the ASME JOURNAL OF TRIBOLOGY. Manuscript received by the Tribology Division February 16, 2000; revised manuscript received August 1, 2000. Associate Editor: G. G. Adams.
J. Tribol. Jan 2001, 123(1): 17-26 (10 pages)
Published Online: August 1, 2000
Article history
Received:
February 16, 2000
Revised:
August 1, 2000
Citation
Liu, S., and Wang, Q. (August 1, 2000). "A Three-Dimensional Thermomechanical Model of Contact Between Non-Conforming Rough Surfaces ." ASME. J. Tribol. January 2001; 123(1): 17–26. https://doi.org/10.1115/1.1327585
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