Numerical modeling of electrical contacts

Wei�enfels, C.; Wriggers, P.
July 2010
Computational Mechanics;Jul2010, Vol. 46 Issue 2, p301
Academic Journal
The focus of this work is the investigation of the behavior in electrical contacts, where electrical, thermal and mechanical fields are coupled. Specifically, theoretical constitutive models for the electrical conductance and electrical wear phenomena are developed and implemented in a three dimensional finite element setting. Also a new relation for wear is proposed, where the amount of wear is coupled to the dissipation arising at the contact interface. Additionally, the numerical results of the new theoretical formulations are validated by means of experimental data.


Related Articles

  • Electromagnetic Elasto-Plastic Dynamic Response of Conductive Plate. Yuanwen Gao // AIP Conference Proceedings;5/21/2010, Vol. 1233 Issue 1, p869 

    Electromagnetic elasto-plastic dynamic response of a conductive plate in a magnetic pulse field are studied in this paper, the influence of the strain rate effect is investigated for the electromagnetic elasto-plastic deformation of the conductive plate. Basic governing equations are derived for...

  • Effect of Material Thickness on Attenuation (dB) of PTFE Using Finite Element Method at X-Band Frequency. Yakubu, Abubakar; Abbas, Zulkifly; Hashim, Mansor // Advances in Materials Science & Engineering;2014, p1 

    PTFE samples were prepared with different thicknesses. Their electric field intensity and distribution of the PTFE samples placed inside a rectangular waveguide were simulated using finite element method. The calculation of transmission/reflection coefficients for all samples thickness was...

  • Fully discrete finite element method for Maxwell�s equations with nonlinear conductivity. Durand, Stephane; Slodicka, Mari�n // IMA Journal of Numerical Analysis;Oct2011, Vol. 31 Issue 4, p1713 

    In this paper we present a numerical scheme to solve nonlinear Maxwell�s equations based on backward Euler discretization in time and curl-conforming finite elements in space. The nonlinearity is due to a field-dependent conductivity in the form of a power law. The system under study is...

  • A finite-element analysis of critical-state models for type-II superconductivity in 3D. Elliott, Charles M.; Kashima, Yohei // IMA Journal of Numerical Analysis;Apr2007, Vol. 27 Issue 2, p293 

    We consider the numerical analysis of evolution variational inequalities which are derived from Maxwell's equations coupled with a nonlinear constitutive relation between the electric field and the current density and governing the magnetic field around a type-II bulk superconductor located in...

  • Analysis and Numerical Approximation of an Electro-elastic Frictional Contact Problem. Taik, A.; Essoufi, El.; Benkhira, El.; Fakhar, R. // Mathematical Modelling of Natural Phenomena;Dec2010, Vol. 5 Issue 7, p84 

    We consider the problem of frictional contact between an piezoelectric body and a conductive foundation. The electro-elastic constitutive law is assumed to be nonlinear and the contact is modelled with the Signorini condition, nonlocal Coulomb friction law and a regularized electrical...

  • Numerical Study of Magnetoacoustic Signal Generation with Magnetic Induction Based on Inhomogeneous Conductivity Anisotropy. Xun Li; Sanqing Hu; Lihua Li; Shanan Zhu // Computational & Mathematical Methods in Medicine;2013, p1 

    Magnetoacoustic tomography with magnetic induction (MAT-MI) is a noninvasive imaging modality for generating electrical conductivity images of biological tissues with high spatial resolution. In this paper, we create a numerical model, including a permanent magnet, a coil, and a two-layer...

  • Numerical Solution of 3-D Magnetotelluric Using Vector Finite Element Method. Prihantoro, Rudy; Sutarno, Doddy; Nurhasan // AIP Conference Proceedings;2015, Vol. 1677 Issue 1, p060018-1 

    Magnetotelluric (MT) is a passive electromagnetic (EM) method which measure natural variations of electric and magnetic vector fields at the Earth surface to map subsurface electrical conductivity/resistivity structure. In this study, we obtained numerical solution of three-dimensional (3-D) MT...

  • The Consideration Nonlinear Characteristic of Soil Around Grounding Electrode by Finite Element Method. Gačanović, Rasim; Zildžo, Hamid // International Review on Modelling & Simulations;Apr2012, Vol. 5 Issue 2, p991 

    The goal of this paper is to calculate the response of an elementary grounding electrode under high speed and high intensity current impulse. This consideration takes into account some nonlinear characteristic of the soil around the electrode. This paper presents the solution to this problem in...

  • Current-voltage characteristics of nanoplatelet-based conductive nanocomposites. Oskouyi, Amirhossein; Sundararaj, Uttandaraman; Mertiny, Pierre // Nanoscale Research Letters;Dec2014, Vol. 9 Issue 1, p1 

    In this study, a numerical modeling approach was used to investigate the current-voltage behavior of conductive nanoplatelet-based nanocomposites. A three-dimensional continuum Monte Carlo model was employed to randomly disperse the nanoplatelets in a cubic representative volume element. A...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics