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Title:Microscale prediction of deformation in an austenitic stainless steel under uniaxial loading
Authors:Dong-Feng Li a, Noel P. O’Dowd a, *, Catrin M. Davies b, Shu-Yan Zhang c, 2011
Abstract: In this study, the deformation behaviour of polycrystalline austenitic 316H stainless steel under uniaxial loading is investigated by means of in-situ neutron diffraction (ND) measurement and crystal plasticity-based finite element (FE) modelling. Data have been obtained for the macroscopic stress–strain response and the lattice strain evolution in the longitudinal and transverse direction relative to the uniaxial loading axis. Comparison between the model predictions and the ND measurements suggests that in most cases the FE model can predict the lattice strain evolution at the microscale and capture the general trends observed in the experiments. Both ND measurements and FE modelling simulations identify little effect of micromorphology effect on the longitudinal lattice strain evolution, while the transverse lattice strain response appears to be sensitive to the microstructure, in particular the initial crystallographic orientation of the material.
ICHEC Project:Microscale study of the deformation and failure behaviour of polycrystals at elevated temperature
Publication:European Journal of Mechanics - A/Solids Volume 30, Issue 5, September–October 2011, Pages 748–760
URL: http://dx.doi.org/10.1016/j.euromechsol.2011.02.002
Keywords: Austenitic stainless steel; Neutron diffraction; Crystal plasticity; Lattice strain; Finite element
Status: Published

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