Two-scale modeling of granular materials: A FEM-FEM approach
作者： Yun-Zhu Cai , Yu-Ching Wu
DOI: 10.1007/S11709-013-0213-Y
关键词: Extended discrete element method 、 Mathematical optimization 、 Representative elementary volume 、 Finite element method 、 Mechanics 、 Scale model 、 Granular material 、 Kinematics 、 Homogenization (chemistry) 、 Discrete element method 、 Materials science 、 Civil and Structural Engineering 、 Architecture
摘要: In the present paper, a homogenization-based two-scale FEM-FEM model is developed to simulate compactions of visco-plastic granular assemblies. The structure consisting two-dimensional grains modeled by microscopic finite element method at small-scale level, and homogenized viscous assembly analyzed macroscopic large-scale level. link between scales made using computational homogenization method. in which each particle treated individually with appropriate constitutive relations obtained from representative volume element, kinematic conditions, contact constraints, elimination overlap satisfied for every particle. could be used variety problems that can represented media.
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