Numerical modelling of micro-machining of f.c.c. single crystal: Influence of strain gradients

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

doi:10.1016/j.commatsci.2014.05.058

Numerical modelling of micro-machining of f.c.c. single crystal: Influence of strain gradients

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

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

24 Scopus citations

Abstract

A micro-machining process becomes increasingly important with the continuous miniaturization of components used in various fields from military to civilian applications. To characterise underlying micromechanics, a 3D finite-element model of orthogonal micro-machining of f.c.c. single crystal copper was developed. The model was implemented in a commercial software ABAQUS/Explicit employing a user-defined subroutine VUMAT. Strain-gradient crystal-plasticity and conventional crystal-plasticity theories were used to demonstrate the influence of pre-existing and evolved strain gradients on the cutting process for different combinations of crystal orientations and cutting directions. Crown Copyright © 2014.

Original language	English (US)
Pages (from-to)	273-278
Number of pages	6
Journal	Computational Materials Science
Volume	94
Issue number	C
DOIs	https://doi.org/10.1016/j.commatsci.2014.05.058
State	Published - Nov 2014

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01

ASJC Scopus subject areas

General Physics and Astronomy
Mechanics of Materials
General Materials Science
Computational Mathematics
General Chemistry
General Computer Science

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10.1016/j.commatsci.2014.05.058

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AU - Silberschmidt, Vadim V.

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AB - A micro-machining process becomes increasingly important with the continuous miniaturization of components used in various fields from military to civilian applications. To characterise underlying micromechanics, a 3D finite-element model of orthogonal micro-machining of f.c.c. single crystal copper was developed. The model was implemented in a commercial software ABAQUS/Explicit employing a user-defined subroutine VUMAT. Strain-gradient crystal-plasticity and conventional crystal-plasticity theories were used to demonstrate the influence of pre-existing and evolved strain gradients on the cutting process for different combinations of crystal orientations and cutting directions. Crown Copyright © 2014.

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Numerical modelling of micro-machining of f.c.c. single crystal: Influence of strain gradients

Abstract

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