In this work a model, based on a X-ray diffraction contrast tomography data of a stainless steel wire with a diameter of 0.4 mm is presented. 3D topology and crystallographic orientation of individual grains are directly transferred into a finite element model. The influence of the grain boundary strength on the macroscopic properties of a polycrystalline aggregate is then explored. The grain boundaries are modelled using the cohesive zone approach. Anisotropic elasticity and crystal plasticity constitutive laws are used for the bulk grain material. The macroscopic response is computed using volume averaging.
SIMONOVSKI Igor;
CIZELJ Leon;
GARRIDO Oriol Costa;
2013-03-22
Nuclear Society of Slovenia
JRC66781
https://publications.jrc.ec.europa.eu/repository/handle/JRC66781,
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