Article ID Journal Published Year Pages File Type
784458 International Journal of Plasticity 2011 18 Pages PDF
Abstract

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.

► Crystal plasticity FE code modelling twinning and slip in HCP crystals. ► Validated against texture and internal strain evolution. ► Compared to self-consistent model predictions.

Related Topics
Physical Sciences and Engineering Engineering Mechanical Engineering
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