Interfacial separation between elastic solids with randomly rough surfaces: comparison of experiment with theory
arXiv:0810.0950 · doi:10.1088/0953-8984/21/1/015003
Abstract
We study the average separation between an elastic solid and a hard solid with a nominal flat but randomly rough surface, as a function of the squeezing pressure. We present experimental results for a silicon rubber (PDMS) block with a flat surface squeezed against an asphalt road surface. The theory shows that an effective repulse pressure act between the surfaces of the form p proportional to exp(-u/u0), where u is the average separation between the surfaces and u0 a constant of order the root-mean-square roughness, in good agreement with the experimental results.
6 pages, 10 figures
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Cited by in corpus (7)
- Self-Affine Elastic Contacts: Percolation and Leakage
- Interfacial separation between elastic solids with randomly rough surfaces: comparison between theory and numerical techniques
- Stiffness of Contacts Between Rough Surfaces
- Finite-size scaling in the interfacial stiffness of rough elastic contacts
- A coupled cohesive zone model for transient analysis of thermoelastic interface debonding
- On the validity of the method of reduction of dimensionality: area of contact, average interfacial separation and contact stiffness
- Measurement of normal contact stiffness of fractal rough surfaces