We consider a simple discrete model for screw dislocations in crystals. Using a variational discrete scheme we study the motion of a configuration of dislocations toward low energy configurations. We deduce an effective fully overdamped dynamics that follows the maximal dissipation criterion introduced in Cermelli and Gurtin (1999) and predicts motion along the glide directions of the crystal.

Dynamics of discrete screw dislocations on glide directions

De Luca, L.;
2016

Abstract

We consider a simple discrete model for screw dislocations in crystals. Using a variational discrete scheme we study the motion of a configuration of dislocations toward low energy configurations. We deduce an effective fully overdamped dynamics that follows the maximal dissipation criterion introduced in Cermelli and Gurtin (1999) and predicts motion along the glide directions of the crystal.
Alicandro, R.; De Luca, L.; Garroni, A.; Ponsiglione, M.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11568/934879
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