Dislocation dynamics in polycrystalline materials

Cho, Jaehyun; Crone, Joshua C.; Arsenlis, Athanasios; Aubry, Sylvie

doi:10.1088/1361-651X/ab6da8

Title: Dislocation dynamics in polycrystalline materials

Abstract

An extension of the dislocation dynamics method to polycrystalline materials is presented with emphasis on handling interactions between dislocations and grain boundaries. The key new features of the method include: (1) a grain boundary detection algorithm, (2) new dislocation emission criteria based on power dissipation and area growth, (3) mobility of dislocations at grain boundaries, and (4) extension of topological operations e.g. mesh adaption, collision, and dissociation to handle dislocations interacting with grain boundaries. Furthermore, verification and validation examples are executed to compare our calculations with existing analytic methods, molecular dynamics simulations, and experimental observations.

Authors:

^[1]; Crone, Joshua C. ^[2]; Arsenlis, Athanasios ^[1]; Aubry, Sylvie ^[1]

Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Army Research Lab., Aberdeen Proving Ground, MD (United States)

Publication Date:: Tue Feb 11 00:00:00 EST 2020

Research Org.:: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Sponsoring Org.:: USDOE National Nuclear Security Administration (NNSA); US Army Research Laboratory (USARL)

OSTI Identifier:: 1605531

Report Number(s):: LLNL-JRNL-783204
Journal ID: ISSN 0965-0393; 978864

Grant/Contract Number:: AC52-07NA27344

Resource Type:: Accepted Manuscript

Journal Name:: Modelling and Simulation in Materials Science and Engineering

Additional Journal Information:: Journal Volume: 28; Journal Issue: 3; Journal ID: ISSN 0965-0393

Publisher:: IOP Publishing

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING; 97 MATHEMATICS AND COMPUTING; 36 MATERIALS SCIENCE; dislocation dynamics; polycrystals; grain boundaries; emission; ParaDiS; dislocations

Citation Formats


                    Cho, Jaehyun, Crone, Joshua C., Arsenlis, Athanasios, and Aubry, Sylvie. Dislocation dynamics in polycrystalline materials.  United States: N. p., 2020. 
Web.  doi:10.1088/1361-651X/ab6da8.

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                    Cho, Jaehyun, Crone, Joshua C., Arsenlis, Athanasios, & Aubry, Sylvie. Dislocation dynamics in polycrystalline materials.  United States.  https://doi.org/10.1088/1361-651X/ab6da8

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                    Cho, Jaehyun, Crone, Joshua C., Arsenlis, Athanasios, and Aubry, Sylvie. Tue .  
"Dislocation dynamics in polycrystalline materials".  United States.  https://doi.org/10.1088/1361-651X/ab6da8.  https://www.osti.gov/servlets/purl/1605531.

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@article{osti_1605531,

  title        = {Dislocation dynamics in polycrystalline materials},

  author       = {Cho, Jaehyun and Crone, Joshua C. and Arsenlis, Athanasios and Aubry, Sylvie},

  abstractNote = {An extension of the dislocation dynamics method to polycrystalline materials is presented with emphasis on handling interactions between dislocations and grain boundaries. The key new features of the method include: (1) a grain boundary detection algorithm, (2) new dislocation emission criteria based on power dissipation and area growth, (3) mobility of dislocations at grain boundaries, and (4) extension of topological operations e.g. mesh adaption, collision, and dissociation to handle dislocations interacting with grain boundaries. Furthermore, verification and validation examples are executed to compare our calculations with existing analytic methods, molecular dynamics simulations, and experimental observations.},

  doi          = {10.1088/1361-651X/ab6da8},

  journal      = {Modelling and Simulation in Materials Science and Engineering},

  number       = 3,

  volume       = 28,

  place        = {United States},

  year         = {Tue Feb 11 00:00:00 EST 2020},

  month        = {Tue Feb 11 00:00:00 EST 2020}

}

Copy to clipboard

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Works referenced in this record:

Mobility of Dislocations in Grain Boundaries
journal, October 1988

Grabski, M. W.
Le Journal de Physique Colloques, Vol. 49, Issue C5
DOI: 10.1051/jphyscol:1988561

Fast, Memory-Efficient Cell Location in Unstructured Grids for Visualization
journal, November 2010

Garth, Christoph; Joy, Kenneth I.
IEEE Transactions on Visualization and Computer Graphics, Vol. 16, Issue 6
DOI: 10.1109/TVCG.2010.156

On plastic deformation and the dynamics of 3D dislocations
journal, February 1998

Zbib, Hussein M.; Rhee, Moono; Hirth, John P.
International Journal of Mechanical Sciences, Vol. 40, Issue 2-3
DOI: 10.1016/S0020-7403(97)00043-X

Low temperature deformation in iron studied with dislocation dynamics simulations
journal, January 2010

Naamane, S.; Monnet, G.; Devincre, B.
International Journal of Plasticity, Vol. 26, Issue 1
DOI: 10.1016/j.ijplas.2009.05.003

Dislocation dynamics in hexagonal close-packed crystals
journal, September 2016

Aubry, S.; Rhee, M.; Hommes, G.
Journal of the Mechanics and Physics of Solids, Vol. 94
DOI: 10.1016/j.jmps.2016.04.019

Microstructure-sensitive computational modeling of fatigue crack formation
journal, September 2010

McDowell, D. L.; Dunne, F. P. E.
International Journal of Fatigue, Vol. 32, Issue 9
DOI: 10.1016/j.ijfatigue.2010.01.003

Application of the in situ TEM deformation technique to observe how “clean” and doped grain boundaries respond to local stress concentrations
journal, March 1992

Robertson, I. M.; Lee, T. C.; Birnbaum, H. K.
Ultramicroscopy, Vol. 40, Issue 3
DOI: 10.1016/0304-3991(92)90130-C

Modelling grain-boundary resistance in intergranular dislocation slip transmission
journal, September 2002

Koning, Maurice de; Miller, R.; Bulatov, V. V.
Philosophical Magazine A, Vol. 82, Issue 13
DOI: 10.1080/01418610208240050

Nucleation and propagation of dislocations in nanocrystalline fcc metals
journal, April 2006

Van Swygenhoven, H.; Derlet, P. M.; Frøseth, A. G.
Acta Materialia, Vol. 54, Issue 7
DOI: 10.1016/j.actamat.2005.12.026

Interaction of Dislocations with Grain Boundaries
journal, December 1982

Smith, D. A.
Le Journal de Physique Colloques, Vol. 43, Issue C6
DOI: 10.1051/jphyscol:1982621

Dislocation interactions and low-angle grain boundary strengthening
journal, November 2011

Liu, B.; Raabe, D.; Eisenlohr, P.
Acta Materialia, Vol. 59, Issue 19
DOI: 10.1016/j.actamat.2011.07.067

Grain-boundary dislocations and enhanced diffusion in nanocrystalline bulk materials and films
journal, January 2003

Ovid'ko, I. A.; Sheinerman, A. G.
Philosophical Magazine, Vol. 83, Issue 13
DOI: 10.1080/1478643031000088674

Yield stress of fine grained materials
journal, August 1998

Masumura, R. A.; Hazzledine, P. M.; Pande, C. S.
Acta Materialia, Vol. 46, Issue 13
DOI: 10.1016/S1359-6454(98)00150-5

A multiscale strength model for extreme loading conditions
journal, April 2011

Barton, N. R.; Bernier, J. V.; Becker, R.
Journal of Applied Physics, Vol. 109, Issue 7
DOI: 10.1063/1.3553718

Tensile-compressive yield asymmetries in high strength wrought magnesium alloys
journal, July 1994

Ball, E. A.; Prangnell, P. B.
Scripta Metallurgica et Materialia, Vol. 31, Issue 2
DOI: 10.1016/0956-716X(94)90159-7

A multiply parallel implementation of finite element-based discrete dislocation dynamics for arbitrary geometries
journal, March 2014

Crone, Joshua C.; Chung, Peter W.; Leiter, Kenneth W.
Modelling and Simulation in Materials Science and Engineering, Vol. 22, Issue 3
DOI: 10.1088/0965-0393/22/3/035014

A molecular dynamics study of polycrystalline fcc metals at the nanoscale: grain boundary structure and its influence on plastic deformation
journal, July 2001

Van Swygenhoven, H.; Caro, A.; Farkas, D.
Materials Science and Engineering: A, Vol. 309-310
DOI: 10.1016/S0921-5093(00)01794-9

Atomistic Simulations of Dislocation Pileup: Grain Boundaries Interaction
journal, May 2015

Wang, Jian
JOM, Vol. 67, Issue 7
DOI: 10.1007/s11837-015-1454-0

Influence of irradiation damage on slip transfer across grain boundaries
journal, February 2014

Cui, B.; Kacher, J.; McMurtrey, M.
Acta Materialia, Vol. 65
DOI: 10.1016/j.actamat.2013.11.033

Dynamic recrystallisation and the development of microstructure during the high temperature deformation of magnesium
journal, October 1982

Ion, S. E.; Humphreys, F. J.; White, S. H.
Acta Metallurgica, Vol. 30, Issue 10
DOI: 10.1016/0001-6160(82)90031-1

A phenomenological dislocation mobility law for bcc metals
journal, October 2016

Po, Giacomo; Cui, Yinan; Rivera, David
Acta Materialia, Vol. 119
DOI: 10.1016/j.actamat.2016.08.016

Dislocation nucleation in Σ3 asymmetric tilt grain boundaries
journal, February 2008

Tschopp, M. A.; McDowell, D. L.
International Journal of Plasticity, Vol. 24, Issue 2
DOI: 10.1016/j.ijplas.2007.02.010

Emission of dislocations from grain boundaries by grain boundary dissociation
journal, December 2014

Hoagland, Richard G.; Valone, Steven M.
Philosophical Magazine, Vol. 95, Issue 2
DOI: 10.1080/14786435.2014.987842

Dislocation processes in the deformation of nanocrystalline aluminium by molecular-dynamics simulation
journal, September 2002

Yamakov, Vesselin; Wolf, Dieter; Phillpot, Simon R.
Nature Materials, Vol. 1, Issue 1
DOI: 10.1038/nmat700

Enabling strain hardening simulations with dislocation dynamics
journal, July 2007

Arsenlis, A.; Cai, W.; Tang, M.
Modelling and Simulation in Materials Science and Engineering, Vol. 15, Issue 6
DOI: 10.1088/0965-0393/15/6/001

Influence of {10-12} extension twinning on the flow behavior of AZ31 Mg alloy
journal, February 2007

Jiang, Lan; Jonas, John J.; Luo, Alan A.
Materials Science and Engineering: A, Vol. 445-446
DOI: 10.1016/j.msea.2006.09.069

Strengthening and softening mechanisms in nanocrystalline materials under superplastic deformation
journal, April 2004

Gutkin, M. Yu.; Ovid'ko, I. A.; Skiba, N. V.
Acta Materialia, Vol. 52, Issue 6
DOI: 10.1016/j.actamat.2003.12.014

Probing the limits of metal plasticity with molecular dynamics simulations
journal, September 2017

Zepeda-Ruiz, Luis A.; Stukowski, Alexander; Oppelstrup, Tomas
Nature, Vol. 550, Issue 7677
DOI: 10.1038/nature23472

Modeling Interface-Dominated Mechanical Behavior of Nanolayered Crystalline Composites
journal, November 2013

Wang, Jian; Zhou, Caizhi; Beyerlein, Irene J.
JOM, Vol. 66, Issue 1
DOI: 10.1007/s11837-013-0808-8

Effect of the grain boundary on the evolution of deformation in a bicrystal
journal, June 2005

Ziegler, A.; Campbell, G. H.; Kumar, M.
Journal of Materials Science, Vol. 40, Issue 12
DOI: 10.1007/s10853-005-2689-x

Modelling crystal plasticity by 3D dislocation dynamics and the finite element method: The Discrete-Continuous Model revisited
journal, February 2014

Vattré, A.; Devincre, B.; Feyel, F.
Journal of the Mechanics and Physics of Solids, Vol. 63
DOI: 10.1016/j.jmps.2013.07.003

Interfacial dislocation motion and interactions in single-crystal superalloys
journal, October 2014

Liu, B.; Raabe, D.; Roters, F.
Acta Materialia, Vol. 79
DOI: 10.1016/j.actamat.2014.06.048

Interfacial plasticity governs strain rate sensitivity and ductility in nanostructured metals
journal, February 2007

Zhu, T.; Li, J.; Samanta, A.
Proceedings of the National Academy of Sciences, Vol. 104, Issue 9
DOI: 10.1073/pnas.0611097104

Simulation and modelling of forest hardening in body centre cubic crystals at low temperature
journal, September 1999

Tang, M.; Devincre, B.; Kubin, L. P.
Modelling and Simulation in Materials Science and Engineering, Vol. 7, Issue 5
DOI: 10.1088/0965-0393/7/5/319

Dynamic observations of the transfer of slip across a grain boundary
journal, June 1989

Robertson, I. M.; Lee, T. C.; Rozenak, P.
Ultramicroscopy, Vol. 30, Issue 1-2
DOI: 10.1016/0304-3991(89)90174-5

Mobility laws in dislocation dynamics simulations
journal, December 2004

Cai, Wei; Bulatov, Vasily V.
Materials Science and Engineering: A, Vol. 387-389
DOI: 10.1016/j.msea.2003.12.085

Nanodomained Nickel Unite Nanocrystal Strength with Coarse-Grain Ductility
journal, June 2015

Wu, Xiaolei; Yuan, Fuping; Yang, Muxin
Scientific Reports, Vol. 5, Issue 1
DOI: 10.1038/srep11728

Multiscale modelling of dislocation/grain boundary interactions. II. Screw dislocations impinging on tilt boundaries in Al
journal, October 2007

Dewald, M. P.; Curtin, W. A.
Philosophical Magazine, Vol. 87, Issue 30
DOI: 10.1080/14786430701297590

Dislocation–grain boundary interaction in 〈111〉 textured thin metal films
journal, September 2010

Bachurin, D. V.; Weygand, D.; Gumbsch, P.
Acta Materialia, Vol. 58, Issue 16
DOI: 10.1016/j.actamat.2010.05.037

Influence of intrinsic kink-like defects on screw dislocation – coherent twin boundary interactions in copper
journal, January 2017

Fang, Qiongjiali; Sansoz, Frederic
Acta Materialia, Vol. 123
DOI: 10.1016/j.actamat.2016.10.032

Size effects in polycrystalline thin films analyzed by discrete dislocation plasticity
journal, May 2005

Nicola, Lucia; Van der Giessen, Erik; Needleman, Alan
Thin Solid Films, Vol. 479, Issue 1-2
DOI: 10.1016/j.tsf.2004.12.012

A non-singular continuum theory of dislocations
journal, March 2006

Cai, W.; Arsenlis, A.; Weinberger, C.
Journal of the Mechanics and Physics of Solids, Vol. 54, Issue 3
DOI: 10.1016/j.jmps.2005.09.005

Interaction Between Lattice and Grain Boundary Dislocations and Their role in Mechanical Properties of Interfaces
journal, April 1985

Lim, L. C.; Raj, R.
Le Journal de Physique Colloques, Vol. 46, Issue C4
DOI: 10.1051/jphyscol:1985464

Coincidence-site lattices and complete pattern-shift in cubic crystals
journal, March 1974

Grimmer, H.; Bollmann, W.; Warrington, D. H.
Acta Crystallographica Section A, Vol. 30, Issue 2
DOI: 10.1107/S056773947400043X

The Deformation and Ageing of Mild Steel: II Characteristics of the L ders Deformation
journal, September 1951

Hall, E. O.
Proceedings of the Physical Society. Section B, Vol. 64, Issue 9
DOI: 10.1088/0370-1301/64/9/302

Overview No. 127The role of the grain boundary plane in cubic polycrystals
journal, March 1998

Randle, V.
Acta Materialia, Vol. 46, Issue 5
DOI: 10.1016/S1359-6454(97)00338-8

Structural phase transformations in metallic grain boundaries
journal, May 2013

Frolov, Timofey; Olmsted, David L.; Asta, Mark
Nature Communications, Vol. 4, Issue 1
DOI: 10.1038/ncomms2919

Mobility law of dislocations with several character angles and temperatures in FCC aluminum
journal, March 2017

Cho, Jaehyun; Molinari, Jean-François; Anciaux, Guillaume
International Journal of Plasticity, Vol. 90
DOI: 10.1016/j.ijplas.2016.12.004

Quasi-four-dimensional analysis of dislocation interactions with grain boundaries in 304 stainless steel
journal, November 2012

Kacher, Josh; Robertson, I. M.
Acta Materialia, Vol. 60, Issue 19
DOI: 10.1016/j.actamat.2012.08.036

Dislocation mobility and the mechanical response of b.c.c. single crystals: A mesoscopic approach
journal, May 1998

Tang, M.; Kubin, L. P.; Canova, G. R.
Acta Materialia, Vol. 46, Issue 9
DOI: 10.1016/S1359-6454(98)00006-8

Micro-scale modeling of interface-dominated mechanical behavior
journal, October 2017

Shao, Shuai; Misra, Amit; Huang, Hanchen
Journal of Materials Science, Vol. 53, Issue 8
DOI: 10.1007/s10853-017-1662-9

Sequential slip transfer of mixed-character dislocations across Σ3 coherent twin boundary in FCC metals: a concurrent atomistic-continuum study
journal, January 2016

Xu, Shuozhi; Xiong, Liming; Chen, Youping
npj Computational Materials, Vol. 2, Issue 1
DOI: 10.1038/npjcompumats.2015.16

In situ nanoindentation study on plasticity and work hardening in aluminium with incoherent twin boundaries
journal, September 2014

Bufford, D.; Liu, Y.; Wang, J.
Nature Communications, Vol. 5, Issue 1
DOI: 10.1038/ncomms5864

In situ and tomographic observations of defect free channel formation in ion irradiated stainless steels
journal, November 2012

Kacher, J.; Liu, G. S.; Robertson, I. M.
Micron, Vol. 43, Issue 11
DOI: 10.1016/j.micron.2012.01.017

Multiple slip in bicrystal deformation
journal, June 1957

Livingston, J. D.; Chalmers, B.
Acta Metallurgica, Vol. 5, Issue 6
DOI: 10.1016/0001-6160(57)90044-5

Parametric dislocation dynamics: A thermodynamics-based approach to investigations of mesoscopic plastic deformation
journal, January 2000

Ghoniem, N. M.; Tong, S. -H.; Sun, L. Z.
Physical Review B, Vol. 61, Issue 2
DOI: 10.1103/PhysRevB.61.913

The role of twinning deformation on the hardening response of polycrystalline magnesium from discrete dislocation dynamics simulations
journal, June 2015

Fan, Haidong; Aubry, Sylvie; Arsenlis, Athanasios
Acta Materialia, Vol. 92
DOI: 10.1016/j.actamat.2015.03.039

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Title: Dislocation dynamics in polycrystalline materials

Abstract

Citation Formats

Mobility of Dislocations in Grain Boundaries journal, October 1988

Fast, Memory-Efficient Cell Location in Unstructured Grids for Visualization journal, November 2010

On plastic deformation and the dynamics of 3D dislocations journal, February 1998

Low temperature deformation in iron studied with dislocation dynamics simulations journal, January 2010

Dislocation dynamics in hexagonal close-packed crystals journal, September 2016

Microstructure-sensitive computational modeling of fatigue crack formation journal, September 2010

Application of the in situ TEM deformation technique to observe how “clean” and doped grain boundaries respond to local stress concentrations journal, March 1992

Modelling grain-boundary resistance in intergranular dislocation slip transmission journal, September 2002

Nucleation and propagation of dislocations in nanocrystalline fcc metals journal, April 2006

Interaction of Dislocations with Grain Boundaries journal, December 1982

Dislocation interactions and low-angle grain boundary strengthening journal, November 2011

Grain-boundary dislocations and enhanced diffusion in nanocrystalline bulk materials and films journal, January 2003

Yield stress of fine grained materials journal, August 1998

A multiscale strength model for extreme loading conditions journal, April 2011

Tensile-compressive yield asymmetries in high strength wrought magnesium alloys journal, July 1994

A multiply parallel implementation of finite element-based discrete dislocation dynamics for arbitrary geometries journal, March 2014

A molecular dynamics study of polycrystalline fcc metals at the nanoscale: grain boundary structure and its influence on plastic deformation journal, July 2001

Atomistic Simulations of Dislocation Pileup: Grain Boundaries Interaction journal, May 2015

Influence of irradiation damage on slip transfer across grain boundaries journal, February 2014

Dynamic recrystallisation and the development of microstructure during the high temperature deformation of magnesium journal, October 1982

A phenomenological dislocation mobility law for bcc metals journal, October 2016

Dislocation nucleation in Σ3 asymmetric tilt grain boundaries journal, February 2008

Emission of dislocations from grain boundaries by grain boundary dissociation journal, December 2014

Dislocation processes in the deformation of nanocrystalline aluminium by molecular-dynamics simulation journal, September 2002

Enabling strain hardening simulations with dislocation dynamics journal, July 2007

Influence of {10-12} extension twinning on the flow behavior of AZ31 Mg alloy journal, February 2007

Strengthening and softening mechanisms in nanocrystalline materials under superplastic deformation journal, April 2004

Probing the limits of metal plasticity with molecular dynamics simulations journal, September 2017

Modeling Interface-Dominated Mechanical Behavior of Nanolayered Crystalline Composites journal, November 2013

Effect of the grain boundary on the evolution of deformation in a bicrystal journal, June 2005

Modelling crystal plasticity by 3D dislocation dynamics and the finite element method: The Discrete-Continuous Model revisited journal, February 2014

Interfacial dislocation motion and interactions in single-crystal superalloys journal, October 2014

Interfacial plasticity governs strain rate sensitivity and ductility in nanostructured metals journal, February 2007

Simulation and modelling of forest hardening in body centre cubic crystals at low temperature journal, September 1999

Dynamic observations of the transfer of slip across a grain boundary journal, June 1989

Mobility laws in dislocation dynamics simulations journal, December 2004

Nanodomained Nickel Unite Nanocrystal Strength with Coarse-Grain Ductility journal, June 2015

Multiscale modelling of dislocation/grain boundary interactions. II. Screw dislocations impinging on tilt boundaries in Al journal, October 2007

Dislocation–grain boundary interaction in 〈111〉 textured thin metal films journal, September 2010

Influence of intrinsic kink-like defects on screw dislocation – coherent twin boundary interactions in copper journal, January 2017

Size effects in polycrystalline thin films analyzed by discrete dislocation plasticity journal, May 2005

A non-singular continuum theory of dislocations journal, March 2006

Interaction Between Lattice and Grain Boundary Dislocations and Their role in Mechanical Properties of Interfaces journal, April 1985

Coincidence-site lattices and complete pattern-shift in cubic crystals journal, March 1974

The Deformation and Ageing of Mild Steel: II Characteristics of the L ders Deformation journal, September 1951

Overview No. 127The role of the grain boundary plane in cubic polycrystals journal, March 1998

Structural phase transformations in metallic grain boundaries journal, May 2013

Mobility law of dislocations with several character angles and temperatures in FCC aluminum journal, March 2017

Quasi-four-dimensional analysis of dislocation interactions with grain boundaries in 304 stainless steel journal, November 2012

Dislocation mobility and the mechanical response of b.c.c. single crystals: A mesoscopic approach journal, May 1998

Micro-scale modeling of interface-dominated mechanical behavior journal, October 2017

Sequential slip transfer of mixed-character dislocations across Σ3 coherent twin boundary in FCC metals: a concurrent atomistic-continuum study journal, January 2016

In situ nanoindentation study on plasticity and work hardening in aluminium with incoherent twin boundaries journal, September 2014

In situ and tomographic observations of defect free channel formation in ion irradiated stainless steels journal, November 2012

Multiple slip in bicrystal deformation journal, June 1957

Parametric dislocation dynamics: A thermodynamics-based approach to investigations of mesoscopic plastic deformation journal, January 2000

The role of twinning deformation on the hardening response of polycrystalline magnesium from discrete dislocation dynamics simulations journal, June 2015

Mobility of Dislocations in Grain Boundaries
journal, October 1988

Fast, Memory-Efficient Cell Location in Unstructured Grids for Visualization
journal, November 2010

On plastic deformation and the dynamics of 3D dislocations
journal, February 1998

Low temperature deformation in iron studied with dislocation dynamics simulations
journal, January 2010

Dislocation dynamics in hexagonal close-packed crystals
journal, September 2016

Microstructure-sensitive computational modeling of fatigue crack formation
journal, September 2010

Application of the in situ TEM deformation technique to observe how “clean” and doped grain boundaries respond to local stress concentrations
journal, March 1992

Modelling grain-boundary resistance in intergranular dislocation slip transmission
journal, September 2002

Nucleation and propagation of dislocations in nanocrystalline fcc metals
journal, April 2006

Interaction of Dislocations with Grain Boundaries
journal, December 1982

Dislocation interactions and low-angle grain boundary strengthening
journal, November 2011

Grain-boundary dislocations and enhanced diffusion in nanocrystalline bulk materials and films
journal, January 2003

Yield stress of fine grained materials
journal, August 1998

A multiscale strength model for extreme loading conditions
journal, April 2011

Tensile-compressive yield asymmetries in high strength wrought magnesium alloys
journal, July 1994

A multiply parallel implementation of finite element-based discrete dislocation dynamics for arbitrary geometries
journal, March 2014

A molecular dynamics study of polycrystalline fcc metals at the nanoscale: grain boundary structure and its influence on plastic deformation
journal, July 2001

Atomistic Simulations of Dislocation Pileup: Grain Boundaries Interaction
journal, May 2015

Influence of irradiation damage on slip transfer across grain boundaries
journal, February 2014

Dynamic recrystallisation and the development of microstructure during the high temperature deformation of magnesium
journal, October 1982

A phenomenological dislocation mobility law for bcc metals
journal, October 2016

Dislocation nucleation in Σ3 asymmetric tilt grain boundaries
journal, February 2008

Emission of dislocations from grain boundaries by grain boundary dissociation
journal, December 2014

Dislocation processes in the deformation of nanocrystalline aluminium by molecular-dynamics simulation
journal, September 2002

Enabling strain hardening simulations with dislocation dynamics
journal, July 2007

Influence of {10-12} extension twinning on the flow behavior of AZ31 Mg alloy
journal, February 2007

Strengthening and softening mechanisms in nanocrystalline materials under superplastic deformation
journal, April 2004

Probing the limits of metal plasticity with molecular dynamics simulations
journal, September 2017

Modeling Interface-Dominated Mechanical Behavior of Nanolayered Crystalline Composites
journal, November 2013

Effect of the grain boundary on the evolution of deformation in a bicrystal
journal, June 2005

Modelling crystal plasticity by 3D dislocation dynamics and the finite element method: The Discrete-Continuous Model revisited
journal, February 2014

Interfacial dislocation motion and interactions in single-crystal superalloys
journal, October 2014

Interfacial plasticity governs strain rate sensitivity and ductility in nanostructured metals
journal, February 2007

Simulation and modelling of forest hardening in body centre cubic crystals at low temperature
journal, September 1999

Dynamic observations of the transfer of slip across a grain boundary
journal, June 1989

Mobility laws in dislocation dynamics simulations
journal, December 2004

Nanodomained Nickel Unite Nanocrystal Strength with Coarse-Grain Ductility
journal, June 2015

Multiscale modelling of dislocation/grain boundary interactions. II. Screw dislocations impinging on tilt boundaries in Al
journal, October 2007

Dislocation–grain boundary interaction in 〈111〉 textured thin metal films
journal, September 2010

Influence of intrinsic kink-like defects on screw dislocation – coherent twin boundary interactions in copper
journal, January 2017

Size effects in polycrystalline thin films analyzed by discrete dislocation plasticity
journal, May 2005

A non-singular continuum theory of dislocations
journal, March 2006

Interaction Between Lattice and Grain Boundary Dislocations and Their role in Mechanical Properties of Interfaces
journal, April 1985

Coincidence-site lattices and complete pattern-shift in cubic crystals
journal, March 1974

The Deformation and Ageing of Mild Steel: II Characteristics of the L ders Deformation
journal, September 1951

Overview No. 127The role of the grain boundary plane in cubic polycrystals
journal, March 1998

Structural phase transformations in metallic grain boundaries
journal, May 2013

Mobility law of dislocations with several character angles and temperatures in FCC aluminum
journal, March 2017

Quasi-four-dimensional analysis of dislocation interactions with grain boundaries in 304 stainless steel
journal, November 2012

Dislocation mobility and the mechanical response of b.c.c. single crystals: A mesoscopic approach
journal, May 1998

Micro-scale modeling of interface-dominated mechanical behavior
journal, October 2017

Sequential slip transfer of mixed-character dislocations across Σ3 coherent twin boundary in FCC metals: a concurrent atomistic-continuum study
journal, January 2016

In situ nanoindentation study on plasticity and work hardening in aluminium with incoherent twin boundaries
journal, September 2014

In situ and tomographic observations of defect free channel formation in ion irradiated stainless steels
journal, November 2012

Multiple slip in bicrystal deformation
journal, June 1957

Parametric dislocation dynamics: A thermodynamics-based approach to investigations of mesoscopic plastic deformation
journal, January 2000

The role of twinning deformation on the hardening response of polycrystalline magnesium from discrete dislocation dynamics simulations
journal, June 2015