An evolutional version of the Modified Voronoi Tessellation is proposed to overcome the topological restrictions of the traditional methods of polycrystalline microstructure generation: cell size distribution, cell shape isotropy and volume fill density can be simultaneously imposed as target conditions. Examples are proposed highlighting a correlation between cell shape isotropy and relative position of centres and sides of the cells. Realistic microstructures impossible to obtain with traditional tessellation methods are shown.
Atomistic modelling of polycrystalline microstructures: An evolutional approach to overcome topological restrictions
Leonardi, Alberto;Leoni, Matteo;Scardi, Paolo
2013-01-01
Abstract
An evolutional version of the Modified Voronoi Tessellation is proposed to overcome the topological restrictions of the traditional methods of polycrystalline microstructure generation: cell size distribution, cell shape isotropy and volume fill density can be simultaneously imposed as target conditions. Examples are proposed highlighting a correlation between cell shape isotropy and relative position of centres and sides of the cells. Realistic microstructures impossible to obtain with traditional tessellation methods are shown.File in questo prodotto:
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