Premium
Simulation of micro‐cutting considering finite deformation crystal plasticity
Author(s) -
Bischof Robert,
Schneider Frank,
Kuhn Charlotte,
Aurich Jan C.,
Müller Ralf
Publication year - 2016
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201610141
Subject(s) - finite element method , crystal plasticity , materials science , slip (aerodynamics) , plasticity , deformation (meteorology) , anisotropy , deformation mechanism , microstructure , machining , composite material , mechanics , geometry , metallurgy , structural engineering , engineering , thermodynamics , mathematics , physics , optics
Micro‐machining processes on metalic microstructures are influenced by the crystal structure, i. e. the grain orientation. Furthermore, the chip formation underlies large deformations. To perform finite element simulations of micro‐cutting processes, a large deformation material model is necessary in order to model the hyperelastic and finite plastic material behaviour. In the case of cp‐titanium material with hcp‐crystal structure the anisotropic behaviour must be considered by an appropriate set of slip planes and slip directions. In the present work the impact of the grain orientation on the plastic deformation is demonstrated by means of finite element simulations of a finite deformation single slip crystal plasticity model. (© 2016 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)