Simulation of micro-cutting considering finite deformation crystal plasticity |
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| Authors: | Robert Bischof Frank Schneider Charlotte Kuhn Jan C Aurich Ralf Müller |
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| Institution: | 1. Institute of Applied Mechanics, University of Kaiserslautern, P.O.Box 3049, 67653 Kaiserslautern, Germany;2. Institute of Manufacturing Technology and Production Systems, University of Kaiserslautern, P.O.Box 3049, 67653 Kaiserslautern, Germany;3. Computational Mechanics, University of Kaiserslautern, P.O.Box 3049, 67653 Kaiserslautern, Germany |
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| Abstract: | 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) |
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