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Title: Strain-gradient crystal-plasticity modelling of micro-cutting of b.c.c. single crystal
Authors: Demiral, Murat
Roy, Anish
Silberschmidt, Vadim V.
Keywords: Strain-gradient crystal-plasticity
Orthogonal micro-cutting
Brass single crystal
Finite-element analysis
Issue Date: 2016
Publisher: © Springer
Citation: DEMIRAL, M., ROY, A. and SILBERSCHMIDT, V.V., 2016. Strain-gradient crystal-plasticity modelling of micro-cutting of b.c.c. single crystal. Meccanica, 51 (2), pp. 371-381.
Abstract: In recent years thanks to enhancements in design of advanced machines, laser metrology and computer control, ultra-precision machining has become increasingly important. In micromachining of metals the depth of cut is usually less than the average grain size of a polycrystalline aggregate; hence, a cutting process can occur entirely within a single crystal. The respective effect of crystallographic anisotropy requires development of machining models that incorporate crystal plasticity for an accurate prediction of micro-scale material removal under such conditions. To achieve this, a 3D finite-element model of orthogonal micro-cutting of a single crystal of b.c.c. brass was implemented in a commercial software ABAQUS/Explicit using a user-defined subroutine VUMAT. Strain-gradient crystal-plasticity theories were used to demonstrate the influence of evolved strain gradients on the cutting process for different cutting directions.
Description: The final publication is available at Springer via http://dx.doi.org/10.1007/s11012-015-0280-3.
Sponsor: MD was supported with a fellowship from The Scientific and Technological Research Council of Turkey (TUBITAK 2232, project no: 114C199).
Version: Accepted for publication
DOI: 10.1007/s11012-015-0280-3
URI: https://dspace.lboro.ac.uk/2134/20560
Publisher Link: http://dx.doi.org/10.1007/s11012-015-0280-3
ISSN: 0025-6455
Appears in Collections:Published Articles (Mechanical, Electrical and Manufacturing Engineering)

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