Reprint of: Dynamics of discrete screw dislocations on glide directions

被引：0

作者：

Alicandro, R. ^{[1
]}

De Luca, L. ^{[2
]}

Garroni, A. ^{[3
]}

Ponsiglione, M. ^{[3
]}

机构：

[1] Univ Cassino, DIEI, Via Biasio 43, I-03043 Cassino, Italy

[2] Tech Univ Munich, Zentrum Math M7, Boltzmannstr 3, D-85748 Garching, Germany

[3] Univ Roma La Sapienza, Dipartimento Matemat Guido Castelnuovo, Ple Aldo Moro 5, I-00185 Rome, Italy

来源：

JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS | 2016年 / 97卷

关键词：

Dislocations; Dynamics; Microstructures; Asymptotic analysis; Variational calculus; TOPOLOGICAL SINGULARITIES; PLASTICITY; LATTICE; ENERGY; MODEL; MECHANICS; MOTION; CRYSTALS; DEFECTS; LIMIT;

D O I：

10.1016/j.jmps.2016.10.003

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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. (C) 2016 Elsevier Inc. All rights reserved.

引用

页码：299 / 316

页数：18

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