Journal
INTERNATIONAL JOURNAL OF PLASTICITY
Volume 27, Issue 11, Pages 1721-1738Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijplas.2011.04.005
Keywords
Microstructures; Crystal plasticity; Slip deformation; Twinning; Finite element model
Funding
- Canadian Natural Sciences and Engineering Research Council
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A crystal plasticity finite element code is developed to model lattice strains and texture evolution of HCP crystals. The code is implemented to model elastic and plastic deformation considering slip and twinning based plastic deformation. The model accounts for twinning reorientation and growth. Twinning, as well as slip, is considered to follow a rate dependent formulation. The results of the simulations are compared to previously published in situ neutron diffraction data. Experimental results of the evolution of the texture and lattice strains under uniaxial tension/compression loading along the rolling, transverse, and normal direction of a piece of rolled Zircaloy-2 are compared with model predictions. The rate dependent formulation introduced is capable of correctly capturing the influence of slip and twinning deformation on lattice strains as well as texture evolution. (C) 2011 Elsevier Ltd. All rights reserved.
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