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 / Alicandro, Roberto; DE LUCA, Lucia; Garroni, Adriana; Ponsiglione, Marcello. - In: JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS. - ISSN 0022-5096. - STAMPA. - 92:(2016), pp. 87-104. [10.1016/j.jmps.2016.03.020]
Dynamics of discrete screw dislocations on glide directions
DE LUCA, LUCIA;GARRONI, Adriana;PONSIGLIONE, Marcello
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.| File | Dimensione | Formato | |
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