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Analysis of plane and rough contacts, subject to a shearing force

Analysis of plane and rough contacts, subject to a shearing force
Analysis of plane and rough contacts, subject to a shearing force
We analyse the surface traction conditions induced in plane contact between two bodies whose surfaces are rough. It is assumed that the roughness may be idealised by a surface of regularly spaced cylindrical “bumps”, and the overall geometry may be in the form of a cylinder, flat ended punch or wedge. The stick-slip regime experienced by each individual asperity contact is found, and hence it is shown how the applied shearing force produces concentrated regions of surface damage. Conditions for crack initiation are then discussed, and compared with equivalent results found for nominally smooth contacts.
surface roughness, rough contacts, partial slip, sheared contacts
0020-7403
107-20
Ciavarella, Michele
3de51b62-4f69-4369-9f4d-a743d6950daa
Hills, D.A.
d7ac6eb1-a16e-4a2c-b3ff-86e82cfbf3d6
Moobola, R.
0b3158b0-f015-47f6-b737-03f89aa69d36
Ciavarella, Michele
3de51b62-4f69-4369-9f4d-a743d6950daa
Hills, D.A.
d7ac6eb1-a16e-4a2c-b3ff-86e82cfbf3d6
Moobola, R.
0b3158b0-f015-47f6-b737-03f89aa69d36

Ciavarella, Michele, Hills, D.A. and Moobola, R. (1999) Analysis of plane and rough contacts, subject to a shearing force. International Journal of Mechanical Sciences, 41 (1), 107-20. (doi:10.1016/S0020-7403(98)00038-1).

Record type: Article

Abstract

We analyse the surface traction conditions induced in plane contact between two bodies whose surfaces are rough. It is assumed that the roughness may be idealised by a surface of regularly spaced cylindrical “bumps”, and the overall geometry may be in the form of a cylinder, flat ended punch or wedge. The stick-slip regime experienced by each individual asperity contact is found, and hence it is shown how the applied shearing force produces concentrated regions of surface damage. Conditions for crack initiation are then discussed, and compared with equivalent results found for nominally smooth contacts.

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More information

Published date: 1999
Keywords: surface roughness, rough contacts, partial slip, sheared contacts

Identifiers

Local EPrints ID: 23231
URI: http://eprints.soton.ac.uk/id/eprint/23231
ISSN: 0020-7403
PURE UUID: f125241e-57e8-4918-a44a-88414608c108

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Date deposited: 01 Feb 2007
Last modified: 15 Mar 2024 06:45

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Contributors

Author: Michele Ciavarella
Author: D.A. Hills
Author: R. Moobola

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