Friction of viscoelastic elastomers with rough surfaces under torsional contact conditions
文献类型：期刊论文
| 作者 | Trejo, Miguel; Fretigny, Christian; Chateauminois, Antoine |
| 刊名 | Physical review. E, Statistical, nonlinear, and soft matter physics
 |
| 出版日期 | 2013-11 |
| 卷号 | 88期号:5页码:052401 |
| ISSN号 | 1550-2376 |
| DOI | 10.1103/PhysRevE.88.052401 |
| 文献子类 | Article |
| 英文摘要 | Frictional properties of contacts between a smooth viscoelastic rubber and rigid surfaces are investigated using a torsional contact configuration where a glass lens is continuously rotated on the rubber surface. From the inversion of the displacement field measured at the surface of the rubber, spatially resolved values of the steady state frictional shear stress are determined within the nonhomogeneous pressure and velocity fields of the contact. For contacts with a smooth lens, a velocity-dependent but pressure-independent local shear stress is retrieved from the inversion. On the other hand, the local shear stress is found to depend on both velocity and applied contact pressure when a randomly rough (sand-blasted) glass lens is rubbed against the rubber surface. As a result of changes in the density of microasperity contacts, the amount of light transmitted by the transparent multicontact interface is observed to vary locally as a function of both contact pressure and sliding velocity. Under the assumption that the intensity of light transmitted by the rough interface is proportional to the proportion of area into contact, it is found that the local frictional stress can be expressed experimentally as the product of a purely velocity-dependent term, k(v), by a term representing the pressure and velocity dependence of the actual contact area, A/A(0). A comparison between k(v) and the frictional shear stress of smooth contacts suggests that nanometer scale dissipative processes occurring at the interface predominate over viscoelastic dissipation at microasperity scale. |
| 语种 | 英语 |
| 源URL | [http://119.78.100.183/handle/2S10ELR8/266680]  |
| 专题 | 中国科学院上海药物研究所 |
| 作者单位 | Soft Matter Science and Engineering Laboratory (SIMM), UMR CNRS 7615, Ecole Supérieure de Physique et Chimie Industrielles (ESPCI), Université Pierre et Marie Curie, Paris (UPMC), France |
| 推荐引用方式 GB/T 7714 | Trejo, Miguel,Fretigny, Christian,Chateauminois, Antoine. Friction of viscoelastic elastomers with rough surfaces under torsional contact conditions[J]. Physical review. E, Statistical, nonlinear, and soft matter physics,2013,88(5):052401. |
| APA | Trejo, Miguel,Fretigny, Christian,&Chateauminois, Antoine.(2013).Friction of viscoelastic elastomers with rough surfaces under torsional contact conditions.Physical review. E, Statistical, nonlinear, and soft matter physics,88(5),052401. |
| MLA | Trejo, Miguel,et al."Friction of viscoelastic elastomers with rough surfaces under torsional contact conditions".Physical review. E, Statistical, nonlinear, and soft matter physics 88.5(2013):052401. |
入库方式： OAI收割
来源：上海药物研究所
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