Recent Progress in Discrete Dislocation Dynamics and Its Applications to Micro Plasticity

Giacomo Po, Mamdouh S. Mohamed, Tamer Crosby, Can Erel, Anter El-Azab, Nasr Ghoniem

Research output: Contribution to journalArticlepeer-review

61 Scopus citations

Abstract

We present a self-contained review of the discrete dislocation dynamics (DDD) method for the numerical investigation of plasticity in crystals, focusing on recent development and implementation progress. The review covers the theoretical foundations of DDD within the framework of incompatible elasticity, its numerical implementation via the nodal method, the extension of the method to finite domains and several implementation details. Applications of the method to current topics in micro-plasticity are presented, including the size effects in nano-indentation, the evolution of the dislocation microstructure in persistent slip bands, and the phenomenon of dislocation avalanches in micro-pillar compression.
Original languageEnglish (US)
Pages (from-to)2108-2120
Number of pages13
JournalJOM
Volume66
Issue number10
DOIs
StatePublished - Sep 27 2014

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