Contact kinematics of a step-compressed viscoelastic solid
| Autor: | Kin W Chau |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Materials science
Acoustics and Ultrasonics business.industry Linearity Mechanics Kinematics Condensed Matter Physics Compression (physics) Viscoelasticity Surfaces Coatings and Films Electronic Optical and Magnetic Materials Dwell time Optics Stress relaxation Material properties Contact area business |
| Zdroj: | Journal of Physics D: Applied Physics. 40:4304-4309 |
| ISSN: | 1361-6463 0022-3727 |
| Popis: | A recently developed approach to study microscopic-scale viscoelastic solid (VS) interfacial contact is applied to quantify the natural law governing the growth of the contact area for a nominally flat VS/solid substrate pair subjected to a uniaxial step compression. A VS is assumed to make contact via some random process; its progress is tracked by treating the VS/substrate interface as a set of many small elements and partitioning them into subsets according to their contact status. A description for the said natural law, in the form of a map relating contact growth with the compressive strain, dwell time, relaxation time and other material properties of the VS/substrate pair, is obtained through non-deterministic considerations that require neither imposing linearity on viscoelastic behaviour nor input of surface topographic data. The proposed description is thus valid for the contact of any solid with a VS, linear or not. Its features, implications and relevance to VS parts design are discussed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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