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CNA Seminar/Colloquium/Joint Pitt-CNA Colloquium
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 presentationRecording: http://mm.math.cmu.edu/recordings/cna/CNA-MarcoMorandotti-Jan-28-2014.avi Recording: http://mm.math.cmu.edu/recordings/cna/CNA-MarcoMorandotti-Jan-28-2014.mp4 Date: Tuesday, January 28, 2014Time: 1:30 pmLocation: Wean Hall 7218Submitted by: David Kinderlehrer |