Liu, Hong, Leray, Dimitri, Colin, Stephane, Pons, Patrick and Broue, Adrien (2012) Finite element based surface roughness study for ohmic contact of microswitches. 2012 IEEE 58th Holm Conference on Electrical Contacts (Holm 2012), United States. 23 - 26 Sep 2012. (doi:10.1109/HOLM.2012.6336607).
Abstract
Finite element method (FEM) is used to model ohmic contact in microswitches. A determinist approach is adopted, including atomic force microscope (AFM) scanning real contact surfaces and generating rough surfaces with three-dimensional mesh. FE frictionless models are set up with the elastoplastic material and the simulations are performed with a loading-unloading cycle. Two material properties, gold and ruthenium, are studied in the simulations. The effect of roughness is investigated by comparing the models with several smoothing intensities and asperity heights. The comparison is quantitatively analyzed with relations of force vs. displacement, force vs. contact area and force vs. electrical contact resistance (ECR); further the evolution of spots in contact during a loading-unloading cycle is studied.
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- Faculties (pre 2018 reorg) > Faculty of Engineering and the Environment (pre 2018 reorg)
- Faculties (pre 2018 reorg) > Faculty of Engineering and the Environment (pre 2018 reorg) > Mechanical Engineering (pre 2018 reorg) > Mechatronics (pre 2018 reorg)
Current Faculties > Faculty of Engineering and Physical Sciences > School of Engineering > Mechanical Engineering > Mechanical Engineering (pre 2018 reorg) > Mechatronics (pre 2018 reorg)
Mechanical Engineering > Mechanical Engineering (pre 2018 reorg) > Mechatronics (pre 2018 reorg) - Faculties (pre 2018 reorg) > Faculty of Engineering and the Environment (pre 2018 reorg) > Mechanical Engineering (pre 2018 reorg) > Engineering Mats & Surface Engineerg Gp (pre 2018 reorg)
Current Faculties > Faculty of Engineering and Physical Sciences > School of Engineering > Mechanical Engineering > Mechanical Engineering (pre 2018 reorg) > Engineering Mats & Surface Engineerg Gp (pre 2018 reorg)
Mechanical Engineering > Mechanical Engineering (pre 2018 reorg) > Engineering Mats & Surface Engineerg Gp (pre 2018 reorg)
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