ORBi: Wu Ling - Influence of the elasto-plastic adhesive contact on Micro-Switches

Reference : Influence of the elasto-plastic adhesive contact on Micro-Switches


	Document type :	Scientific congresses and symposiums : Paper published in a book
	Discipline(s) :	Engineering, computing & technology : Mechanical engineering Engineering, computing & technology : Electrical & electronics engineering Engineering, computing & technology : Aerospace & aeronautics engineering
	To cite this reference:	http://hdl.handle.net/2268/99063

Title :	Influence of the elasto-plastic adhesive contact on Micro-Switches
Language :	English
Author, co-author :	Wu, Ling [Université de Liège - ULg > Département d'aérospatiale et mécanique > LTAS - Vibrations et identification des structures >]
	Golinval, Jean-Claude [Université de Liège - ULg > Département d'aérospatiale et mécanique > LTAS - Vibrations et identification des structures >]
	Noels, Ludovic [Université de Liège - ULg > Département d'aérospatiale et mécanique > Computational & Multiscale Mechanics of Materials (CM3) >]
Publication date :	Nov-2011
Main document title :	Proceedings of the 5th International Conference on Advanded COmputational Methods in Engineering (ACOMEN2011)
Editor :	Hogge, Michel
	Van Keer, Roger
	Dick, Erik
	Malengier, Benny
	Slodicka, Marian
	Geuzaine, Christophe
	Noels, Ludovic
	Remacle, Jean-François
	Béchet, Eric
Pages :	8 pages
On invitation :	No
Audience :	International
ISBN :	978-2-9601143-1-7
Event name :	5th International Conference on Advanded COmputational Methods in Engineering (ACOMEN2011)
Event date :	14-17 november 2011
Event organizer :	Université de Liège, Universiteit Gent, Université Catholique de Louvain
Event place (city) :	Liège
Event country :	Belgium
Keywords :	[en] MEMS ; Stiction ; plasticity
Abstract :	[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.
Target :	Researchers ; Professionals
Permalink :	http://hdl.handle.net/2268/99063
Other URL :	http://www.ltas.ulg.ac.be/acomen2011/NewWebSite/docs/Abstracts/Numerical_Multiscale_Methods/Numerical%20Multiscale%20Methods04.pdf

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	File	Commentary	Version	Size	Access
Restricted access	2011_ACOMEN_MEMSPlast.pdf	(c) Université de Liège 2011	Author postprint	175.48 kB	Request copy

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