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Contact mechanics of functionally graded rough surfaces

Paggi, Marco and Zavarise, Giorgio Contact mechanics of functionally graded rough surfaces. In: Proceedings of the 19th AIMETA Congress of Theoretical and Applied Mechanics. Aras Edizioni, pp. 1-10. ISBN 9788896378083 (2009)

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In this paper the Greenwood and Williamson contact theory for microscopically rough surfaces is generalized by considering a grading on the elastic modulus of the asperities. This situation can be representative of surfaces receiving superficial treatments or characterized by a chemical degradation. The effect of an exponential grading on the applied normal load, on the relationship between the real contact area and the load, on the plasticity index, as well as on the contact conductance is illustrated with detailed numerical examples.

Item Type: Book Section
Additional Information: 19th AIMETA Congress of Theoretical and Applied Mechanics, Ancona, Italy, September 14-17, 2009
Uncontrolled Keywords: Contact mechanics, rough surfaces, functionally graded materials.
Subjects: T Technology > TJ Mechanical engineering and machinery
Research Area: Computer Science and Applications
Depositing User: Prof Marco Paggi
Date Deposited: 12 Dec 2013 13:07
Last Modified: 09 Oct 2014 09:20
URI: http://eprints.imtlucca.it/id/eprint/2055

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