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

doi:10.1007/s11837-014-1153-2

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

King Abdullah University of Science and Technology

Research output: Contribution to journal › Article › peer-review

106 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 language	English (US)
Pages (from-to)	2108-2120
Number of pages	13
Journal	JOM
Volume	66
Issue number	10
DOIs	https://doi.org/10.1007/s11837-014-1153-2
State	Published - Sep 27 2014

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This material is based upon work supported by the U.S. Department of Energy, Office of Science, Office of Fusion Energy Sciences, under Award Number DE-FG02-03ER54708, and the US Air Force Office of Scientific Research (AFOSR), under award number FA9550-11-1-0282.

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title = "Recent Progress in Discrete Dislocation Dynamics and Its Applications to Micro Plasticity",

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.",

author = "Giacomo Po and Mohamed, {Mamdouh S.} and Tamer Crosby and Can Erel and Anter El-Azab and Nasr Ghoniem",

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AU - Crosby, Tamer

AU - Erel, Can

AU - El-Azab, Anter

AU - Ghoniem, Nasr

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: This material is based upon work supported by the U.S. Department of Energy, Office of Science, Office of Fusion Energy Sciences, under Award Number DE-FG02-03ER54708, and the US Air Force Office of Scientific Research (AFOSR), under award number FA9550-11-1-0282.

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N2 - 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.

AB - 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.

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

Abstract

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