A new numerical model for the three-dimensional contact analysis of a layered elastic–perfectly plastic half space with another rough surface is presented. The model is based on a variational principle in which the real area of contact and contact pressure distribution are those which minimize the total complementary potential energy. A quasi-Newton method is used to find the minimum. The influence coefficients matrix is determined using the Papkovich–Neuber potentials with fast Fourier transformation. The model is extended to elastic–perfectly plastic contacts in dry and wet conditions. Contact analyses have been performed to predict contact statistics of layered elastic/plastic solids with rough surfaces using this model. The effects of the stiffness of the layer and the substrate, layer thickness, as well as normal load are studied. Optimum layer parameters are identified to provide low friction/stiction and wear.
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e-mail: bhushan.2@osu.edu
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April 2001
Technical Papers
A Numerical Three-Dimensional Model for the Contact of Layered Elastic/Plastic Solids With Rough Surfaces by a Variational Principle
Wei Peng, Student Member ASME,
Wei Peng, Student Member ASME
Department of Mechanical Engineering, Computer Microtribology and Contamination Laboratory, The Ohio State University, Columbus, OH 43210-1107
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Bharat Bhushan, Fellow ASME
e-mail: bhushan.2@osu.edu
Bharat Bhushan, Fellow ASME
Department of Mechanical Engineering, Computer Microtribology and Contamination Laboratory, The Ohio State University, Columbus, OH 43210-1107
Search for other works by this author on:
Wei Peng, Student Member ASME
Department of Mechanical Engineering, Computer Microtribology and Contamination Laboratory, The Ohio State University, Columbus, OH 43210-1107
Bharat Bhushan, Fellow ASME
Department of Mechanical Engineering, Computer Microtribology and Contamination Laboratory, The Ohio State University, Columbus, OH 43210-1107
e-mail: bhushan.2@osu.edu
Contributed by the Tribology Division of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS for presentation at the STLE/ASME Tribology Conference, Seattle, WA, October 1–4. Manuscript received by the Tribology Division Feb. 4, 2000; revised manuscript received June 16, 2000. Paper No. 2000-TRIB-16. Associate Editor: G. G. Adams.
J. Tribol. Apr 2001, 123(2): 330-342 (13 pages)
Published Online: June 16, 2000
Article history
Received:
February 4, 2000
Revised:
June 16, 2000
Citation
Peng, W., and Bhushan, B. (June 16, 2000). "A Numerical Three-Dimensional Model for the Contact of Layered Elastic/Plastic Solids With Rough Surfaces by a Variational Principle ." ASME. J. Tribol. April 2001; 123(2): 330–342. https://doi.org/10.1115/1.1308004
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