Cylinder-Flat Contact Mechanics with Surface Roughness

On the nature of surface roughness with application to contact mechanics, sealing, rubber friction and adhesion.

Surface roughness has a huge impact on many important phenomena. The most important property of rough surfaces is the surface roughness power spectrum C(q). We present surface roughness power spectra of many surfaces of practical importance, obtained from the surface height profile measured using optical methods and the atomic force microscope. We show how the power spectrum determines the cont...

Role of Surface Roughness in Hysteresis during Adhesive Elastic Contact.

In experiments that involve contact with adhesion between two surfaces, as found in atomic force microscopy or nanoindentation, two distinct contact force (P) vs. indentation-depth (h) curves are often measured depending on whether the indenter moves towards or away from the sample. The origin of this hysteresis is not well understood and is often attributed to moisture, plasticity or viscoelas...

In situ non-contact measurements of surface roughness

Surface roughness measurements are often required to validate a machining process. However, when using a 3D surface roughness measuring instruments it is usually necessary to remove the part from the machine tool between two operations, potentially introducing systematic errors. Furthermore, surface roughness measuring instruments are not suited for measuring heavy and large parts such as stamp...

Non-Contact Method for Surface Roughness Measurement After Machining

184 Non-Contact Method for Surface Roughness Measurement After Machining J. Valíček, M. Držík, T. Hryniewicz, M. Harničárová, K. Rokosz, M. Kušnerová, K. Barčová, D. Bražina 1 Institute of Physics, Faculty of Mining and Geology, VŠB Technical University of Ostrava, 17. listopadu 15/2172, 708 33 Ostrava-Poruba, Czech Republic, corresponding author: [email protected] 2 Institute of Construction ...

Hydrogel Contact Lenses Surface Roughness and Bacterial Adhesion