relation: http://eprints.imtlucca.it/2055/ title: Contact mechanics of functionally graded rough surfaces creator: Paggi, Marco creator: Zavarise, Giorgio subject: TJ Mechanical engineering and machinery description: 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. publisher: Aras Edizioni date: 2009 type: Book Section type: PeerReviewed identifier: 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)