关键词: Voronoi分布, 泡沫, 微结构, 力学性能, 有限元

Abstract:

On the basis of different random disturbances on the BCC points set, the Voronoi random models for closedfoam are established. The elastic properties of those models are analyzed by finite element method, and the relative elastic modulus, Poisson’s ratio and the coefficient of variation which describes their dispersion are obtained. The model size and random level dependence of the elastic properties and their dispersion are discussed.

Key words: Voronoi , tessellation,  , foam,  , microstructure,  , mechanical , property,  , finite , elements , method