A numerical-analytical approach to determining the real contact area of rough surface contact
| Autor: | Can Wang, Dik J. Schipper |
|---|---|
| Přispěvatelé: | Surface Technology and Tribology |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Surface (mathematics)
Materials science Real contact area Mechanical Engineering Mathematical analysis Extrapolation UT-Hybrid-D extrapolation Semi analytical method 02 engineering and technology 021001 nanoscience & nanotechnology 020303 mechanical engineering & transports 0203 mechanical engineering grid sensitivity Rough surface General Materials Science semi-analytical method 0210 nano-technology Contact area Computer Science::Distributed Parallel and Cluster Computing |
| Zdroj: | Tribology-Materials, Surfaces and Interfaces, 14(3), 166-176. Maney Publishing |
| ISSN: | 1751-5831 |
| Popis: | The objective of this study is to improve the accuracy of the real contact area calculated by the semi-analytical method (SAM). Two types of surface pairs are investigated: an analytically generated sinusoidal wavy surface against a rigid flat, and a pair of real rough surfaces. The results suggest that the real contact area calculated by the SAM is extremely sensitive to the resolution of input, i.e. the grid size. The SAM results of the real contact areas show poor convergence, especially in the case of the real rough surfaces. The main reason for this difference is the ‘over-covering’ effect when SAM calculates the real contact area. An exponential extrapolation technique is proposed to predict the real contact area values when further refinement of the grid resolution is unfeasible. |
| Databáze: | OpenAIRE |
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