  Matlab Database > Partial Differential Equations > Finite Element Method > Simplified Friction Problem

### Matlab File(s)

 Title: Simplified Friction Problem Author: Stefan Hueeber E-Mail: hueeber-AT-ians.uni-stuttgart.de Institution: University of Stuttgart Description: This program solves the 2D simplified friction problem ``` - \Delta u + u = f in \Omega = (0,1)^2 ``` with the conditions for simplified friction ``` |du/dn| <= g |du/dn| < g => u = 0 |du/dn| = g => u * (du/dn) <= 0 ``` on the the boundary of \Omega with g>0. This problem leads to a variational inequality of the second kind. TH functional j(v) is replaced by the continuous differentibale one ``` / |v| if |v| >= eps j_eps(v) = | \ 1/2(v^2/eps + eps) if |v| < eps ``` Keywords: variational inequality of the second kind, penalty, simplified friction, finite elements File Name: simplified_friction.zip File Size: 3 KB File Version: 1.0 Matlab Version: 7.0 (R14) Date: 2007-05-30 Downloads: 1457 Download File  © Technische Universität München 2011 | Disclaimer | Impressum Rechtshinweise