A Multilevel Model for Elastic-Plastic Contact Between a Sphere and a Flat Rough SurfaceSource: Journal of Tribology:;2009:;volume( 131 ):;issue: 002::page 21409Author:F. Steven Wang
,
Joseph M. Block
,
W. Wayne Chen
,
Ashlie Martini
,
Kun Zhou
,
Leon M. Keer
,
Q. Jane Wang
DOI: 10.1115/1.3085944Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Elastic-plastic contact of a smooth sphere and a half-space with a real machined surface is simulated using an integration-based multilevel contact model. The total surface deflection is composed of bulk and asperity deformations. They are calculated at the global and the asperity level, respectively, which are connected through the asperity-supporting load. With this new model, the accurate contact area and contact pressure under a given load are quickly predicted using a relatively coarse grid system. The calculated load-area curve shows good agreement with the experimental data. Finally, the effects of the surface topography, including roughness and the asperity radius, upon the real contact area are analyzed.
keyword(s): Pressure , Deformation , Surface roughness , Stress , Deflection AND Elastic half space ,
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| contributor author | F. Steven Wang | |
| contributor author | Joseph M. Block | |
| contributor author | W. Wayne Chen | |
| contributor author | Ashlie Martini | |
| contributor author | Kun Zhou | |
| contributor author | Leon M. Keer | |
| contributor author | Q. Jane Wang | |
| date accessioned | 2017-05-09T00:35:37Z | |
| date available | 2017-05-09T00:35:37Z | |
| date copyright | April, 2009 | |
| date issued | 2009 | |
| identifier issn | 0742-4787 | |
| identifier other | JOTRE9-28765#021409_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/142079 | |
| description abstract | Elastic-plastic contact of a smooth sphere and a half-space with a real machined surface is simulated using an integration-based multilevel contact model. The total surface deflection is composed of bulk and asperity deformations. They are calculated at the global and the asperity level, respectively, which are connected through the asperity-supporting load. With this new model, the accurate contact area and contact pressure under a given load are quickly predicted using a relatively coarse grid system. The calculated load-area curve shows good agreement with the experimental data. Finally, the effects of the surface topography, including roughness and the asperity radius, upon the real contact area are analyzed. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | A Multilevel Model for Elastic-Plastic Contact Between a Sphere and a Flat Rough Surface | |
| type | Journal Paper | |
| journal volume | 131 | |
| journal issue | 2 | |
| journal title | Journal of Tribology | |
| identifier doi | 10.1115/1.3085944 | |
| journal fristpage | 21409 | |
| identifier eissn | 1528-8897 | |
| keywords | Pressure | |
| keywords | Deformation | |
| keywords | Surface roughness | |
| keywords | Stress | |
| keywords | Deflection AND Elastic half space | |
| tree | Journal of Tribology:;2009:;volume( 131 ):;issue: 002 | |
| contenttype | Fulltext |