Reference : Influence of the elasto-plastic adhesive contact on Micro-Switches
Scientific congresses and symposiums : Paper published in a book
Engineering, computing & technology : Aerospace & aeronautics engineering
Engineering, computing & technology : Electrical & electronics engineering
Engineering, computing & technology : Mechanical engineering
http://hdl.handle.net/2268/99063
Influence of the elasto-plastic adhesive contact on Micro-Switches
English
Wu, Ling mailto [Université de Liège - ULg > Département d'aérospatiale et mécanique > LTAS - Vibrations et identification des structures >]
Golinval, Jean-Claude mailto [Université de Liège - ULg > Département d'aérospatiale et mécanique > LTAS - Vibrations et identification des structures >]
Noels, Ludovic mailto [Université de Liège - ULg > Département d'aérospatiale et mécanique > Computational & Multiscale Mechanics of Materials (CM3) >]
Nov-2011
Proceedings of the 5th International Conference on Advanded COmputational Methods in Engineering (ACOMEN2011)
Hogge, Michel
Van Keer, Roger
Dick, Erik
Malengier, Benny
Slodicka, Marian
Geuzaine, Christophe
Noels, Ludovic
Remacle, Jean-François
Béchet, Eric
8 pages
No
No
International
978-2-9601143-1-7
5th International Conference on Advanded COmputational Methods in Engineering (ACOMEN2011)
14-17 november 2011
Université de Liège, Universiteit Gent, Université Catholique de Louvain
Liège
Belgium
[en] MEMS ; Stiction ; plasticity
[en] Undesirable stiction, which results from contact between surfaces, is a major failure mode in micro,electro-mechanical systems (MEMS). In previous works, a statistical rough surfaces interaction,model, based on Maugis and Kim formulations has been presented to estimate the adhesive forces in MEMS switches. In this model, only elastic adhesive contact has been considered. However, during the impact between rough surfaces, at pull-in process for example, plastic deformations of the rough surfaces cannot be always neglected especially for the MEMS with metallic contact surfaces.
In the present work, a new micro-model predicting the adhesive-contact force on a single elasticplastic asperity interacting with a rigid plane is presented. This model will be used later on for the interaction between two elastic-plastic rough surfaces. The MEMS devices studied here are assumed to work in a dry environment. In these operating conditions only the Van der Waals forces have to be considered for adhesion.
Researchers ; Professionals
http://hdl.handle.net/2268/99063
http://www.ltas.ulg.ac.be/acomen2011/NewWebSite/docs/Abstracts/Numerical_Multiscale_Methods/Numerical%20Multiscale%20Methods04.pdf

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