Pressure required to flatten an elastic random rough profile
| Autor: | W. Manners |
|---|---|
| Rok vydání: | 2000 |
| Předmět: |
Surface (mathematics)
business.industry Plane (geometry) Mechanical Engineering Mean pressure Surface finish Mechanics Type (model theory) Condensed Matter Physics Flattening Optics Asymptotic form Mechanics of Materials General Materials Science business Civil and Structural Engineering Mathematics |
| Zdroj: | International Journal of Mechanical Sciences. 42:2321-2336 |
| ISSN: | 0020-7403 |
| DOI: | 10.1016/s0020-7403(99)00098-3 |
| Popis: | This paper considers a semi-infinite elastic solid, whose surface has a random rough profile, and which is flattened by a smooth rigid plane. It is confirmed that, for the type of profile considered, which has characteristics typical of many found in engineering practice, complete flattening cannot be achieved with a finite mean pressure applied to the rigid plane. If the components of roughness with a ‘frequency’ above some cut-off value are ignored, a finite mean pressure is sufficient. By varying the cut-off frequency, an asymptotic form for the mean pressure can be found, and the effect of the high-frequency components can be investigated. Some implications for the creation of static seals are discussed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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