Conference paper
Automated contact area measurement on structured surfaces
Manufacturing Engineering, Department of Mechanical Engineering, Technical University of Denmark1
Department of Mechanical Engineering, Technical University of Denmark2
Visual Computing, Department of Applied Mathematics and Computer Science, Technical University of Denmark3
Department of Applied Mathematics and Computer Science, Technical University of Denmark4
Structured surfaces involved in a tribological test are quantified using an automated contact area measurement method. The method involves an image segmentation algorithm based on local image gradient extrema. The gradients are then used to accurately determine band-edge segmentation in order to measure the line thickness of the structured surfaces.
The traceability of the method was established through an optical standard from NPL in the line-thickness range 10 -100 μm achieving expanded uncertainties in the range 0.5-1.9 μm. The specimen line thickness of different combinations of asperity angle and deformation load, were subject to 10 repeated automatic measurements.
The combination of the parameters produce different contact areas, which are interesting for the tribological properties of the surfaces.
| Language: | English |
|---|---|
| Publisher: | The European Society for Precision Engineering and Nanotechnology |
| Year: | 2018 |
| Pages: | 473-474 |
| Proceedings: | 18th International Conference of the european Society for Precision Engineering and Nanotechnology (euspen 18) |
| Types: | Conference paper |
| ORCIDs: | Kücükyildiz, Ömer C. and De Chiffre, Leonardo |
