期刊
COMPUTATIONAL MATERIALS SCIENCE
卷 94, 期 -, 页码 273-278出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.commatsci.2014.05.058
关键词
Strain-gradient crystal plasticity; Orthogonal micromachining; Copper single crystal; Finite-element analysis
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 (C) 2014 Published by Elsevier B.V. All rights reserved.
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