Finite Element Multi-physics Modeling for Ohmic Contact of Microswitches

Abstract : The purpose of this paper is to investigate the thermoelectrical behaviour of ohmic microcontacts under low force. The temperature in the contact zone is very important for the reliability of microswitches. As it is very difficult to measure the inner temperature, the numerical thermal modelling of electrical contacts offers interesting perspectives. A multi-physics modelling of electrical contact is accomplished with the finite element commercial package ANSYSTM. Two approaches for coupled-field analysis are investigated, namely direct and load transfer. The thermo-electro-mechanical modelling is firstly validated with a smooth sphere-plane contact, and then applied for a real rough contact computation, elastic-plastic material deformation is included in the modelling. The temperature distribution on the contact surface is plotted, and the maximum temperature is found around the asperities with the highest deformation. The multi-physics model offers a reliable method to investigate the steady-state thermal behaviour of electrical contact with rough surface included.
Type de document :
Communication dans un congrès
International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (EuroSimE), Apr 2014, Ghent, Belgium. pp.Proceedings EuroSimE, 2014
Liste complète des métadonnées

Littérature citée [26 références]  Voir  Masquer  Télécharger

https://hal.archives-ouvertes.fr/hal-01024132
Contributeur : Pons Patrick <>
Soumis le : mardi 15 juillet 2014 - 16:23:49
Dernière modification le : vendredi 26 octobre 2018 - 10:46:46
Document(s) archivé(s) le : lundi 24 novembre 2014 - 12:06:00

Fichier

EuroSimE_2014_-_Liu.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

  • HAL Id : hal-01024132, version 1

Citation

Hong Liu, Dimitri Leray, Patrick Pons, Stéphane Colin. Finite Element Multi-physics Modeling for Ohmic Contact of Microswitches. International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (EuroSimE), Apr 2014, Ghent, Belgium. pp.Proceedings EuroSimE, 2014. 〈hal-01024132〉

Partager

Métriques

Consultations de la notice

317

Téléchargements de fichiers

604