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CNA Seminar
Marco Morandotti
Instituto Superior Te'cnico, Lisbon
Title: Dynamics for a system of screw dislocations

Abstract: We describe the dynamics for a system of screw dislocations subject to anti-plane shear. Variational techniques allow us to find minimizers for the energy functional associated with the system of dislocations in an elastic medium. Building on a model due to Cermelli and Gurtin, a weak notion of solutions (in the sense of Filippov) to ordinary differential equations is used to solve the dynamics problem. Some examples of interesting scenarios complement the presentation

Recording (avi): http://mm.math.cmu.edu/recordings/cna/CNA-MarcoMorandotti-Jan-28-2014.avi
Recording (mp4): http://mm.math.cmu.edu/recordings/cna/CNA-MarcoMorandotti-Jan-28-2014.mp4
Date: Tuesday, January 28, 2014
Time: 1:30 pm
Location: Wean Hall 7218
Submitted by:  David Kinderlehrer