Influence of strain gradients on lattice rotation in nano-indentation experiments: A numerical study

Murat Demiral; Anish Roy; Tamer S. El Sayed; Vadim V. Silberschmidt

doi:10.1016/j.msea.2014.04.033

Influence of strain gradients on lattice rotation in nano-indentation experiments: A numerical study

Murat Demiral, Anish Roy, Tamer S. El Sayed, Vadim V. Silberschmidt

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

16 Scopus citations

Abstract

In this paper the texture evolution in nano-indentation experiments was investigated numerically. To achieve this, a three-dimensional implicit finite-element model incorporating a strain-gradient crystal-plasticity theory was developed to represent accurately the deformation of a body-centred cubic metallic material. A hardening model was implemented to account for strain hardening of the involved slip systems. The surface topography around indents in different crystallographic orientations was compared to corresponding lattice rotations. The influence of strain gradients on the prediction of lattice rotations in nano-indentation was critically assessed. © 2014 Elsevier B.V..

Original language	English (US)
Pages (from-to)	73-81
Number of pages	9
Journal	Materials Science and Engineering: A
Volume	608
DOIs	https://doi.org/10.1016/j.msea.2014.04.033
State	Published - Jul 2014

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: The research leading to these results received funding from the European Union Seventh Framework Programme(FP7/2007-2013) under Grant agreement PITN-GA-2008-211536, project MaMiNa and KAUST baseline fund. MD thanks Prof. Fionn Dunne for useful discussions.

ASJC Scopus subject areas

Mechanics of Materials
General Materials Science
Mechanical Engineering
Condensed Matter Physics

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10.1016/j.msea.2014.04.033

Cite this

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title = "Influence of strain gradients on lattice rotation in nano-indentation experiments: A numerical study",

abstract = "In this paper the texture evolution in nano-indentation experiments was investigated numerically. To achieve this, a three-dimensional implicit finite-element model incorporating a strain-gradient crystal-plasticity theory was developed to represent accurately the deformation of a body-centred cubic metallic material. A hardening model was implemented to account for strain hardening of the involved slip systems. The surface topography around indents in different crystallographic orientations was compared to corresponding lattice rotations. The influence of strain gradients on the prediction of lattice rotations in nano-indentation was critically assessed. {\textcopyright} 2014 Elsevier B.V..",

author = "Murat Demiral and Anish Roy and {El Sayed}, {Tamer S.} and Silberschmidt, {Vadim V.}",

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AU - Roy, Anish

AU - El Sayed, Tamer S.

AU - Silberschmidt, Vadim V.

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: The research leading to these results received funding from the European Union Seventh Framework Programme(FP7/2007-2013) under Grant agreement PITN-GA-2008-211536, project MaMiNa and KAUST baseline fund. MD thanks Prof. Fionn Dunne for useful discussions.

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AB - In this paper the texture evolution in nano-indentation experiments was investigated numerically. To achieve this, a three-dimensional implicit finite-element model incorporating a strain-gradient crystal-plasticity theory was developed to represent accurately the deformation of a body-centred cubic metallic material. A hardening model was implemented to account for strain hardening of the involved slip systems. The surface topography around indents in different crystallographic orientations was compared to corresponding lattice rotations. The influence of strain gradients on the prediction of lattice rotations in nano-indentation was critically assessed. © 2014 Elsevier B.V..

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JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

ER -

Influence of strain gradients on lattice rotation in nano-indentation experiments: A numerical study

Abstract

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