rough surfaces – About Tribology

power spectral density of a rough surface

Power Spectral Density of Rough Surfaces

26.08.2018 tribonet

Roughness is known to be an important factor in friction, wear and related performance of the machine parts. It was shown recently that Power Spectrum Density (PSD) can be used as a metric to describe […]

Contact Area Calculation Tutorial: Boundary Element Based Model vs. Asperity Based Model

14.03.2018

In contact mechanics and tribology it is frequently needed to calculate the contact area between rough surfaces to estimate possible slip, friction, electric conductivity, etc. In this tutorial, it will be shown how to perform [...]
Bi-layered materials: graphene - no heat, no friction; h-BN - as strong as diamond.

20.09.2017

A group of researchers from Queen’s University Belfast have discovered a stretchy miracle material that could be used to create highly resistant smart devices and scratch-proof paint for cars. Led by Dr Elton Santos from [...]
Snake skin inspired texture to control friction

22.06.2018

If you want to know how to make a sneaker with better traction in the rain, just ask a snake. That’s the theory driving the research of Hisham Abdel-Aal, PhD, an associate teaching professor from [...]
How to get sprayed metal coatings to stick

04.12.2017

Micrographs of a metal surface after impact by metal particles. Craters are formed due to melting of the surface from the impact. Image courtesy of the researchers. “When spraying metal coatings, melting hurts rather than [...]
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Sediments Act As Lubricants for Plate Tectonics

09.09.2019

Plate tectonics explains the features and movement of the Earth’s surface both in the present and in the past. It is the theory that the outer shell of Earth is divided into many plates (including [...]

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About Tribology

Wiki Tag: rough surfaces

Power Spectral Density of Rough Surfaces

Contact Area Calculation Tutorial: Boundary Element Based Model vs. Asperity Based Model

Bi-layered materials: graphene - no heat, no friction; h-BN - as strong as diamond.

Snake skin inspired texture to control friction

How to get sprayed metal coatings to stick

Sediments Act As Lubricants for Plate Tectonics