2134/25641 Murat Demiral Murat Demiral Anish Roy Anish Roy Tamer El Sayed Tamer El Sayed Vadim Silberschmidt Vadim Silberschmidt Numerical modelling of micro-machining of f.c.c. single crystal: influence of strain gradients Loughborough University 2017 untagged Mechanical Engineering not elsewhere classified Condensed Matter Physics 2017-06-30 10:02:03 Journal contribution https://repository.lboro.ac.uk/articles/journal_contribution/Numerical_modelling_of_micro-machining_of_f_c_c_single_crystal_influence_of_strain_gradients/9565115 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.