Paper Title:

3D Dynamic Simulation for Random-Distributed Aggregate Model of Plain Concrete

Periodical Materials Science Forum (Volume 650)
Main Theme Energy and Environment Materials
Edited by Yafang Han, Tianmin Wang and Shaoxiong Zhou
Pages 56-62
DOI 10.4028/www.scientific.net/MSF.650.56
Citation Jun Hong et al., 2010, Materials Science Forum, 650, 56
Online since May, 2010
Authors Jun Hong, Li Guo, Ling Qiao, Xiao Ming Guo
Keywords Aggregate, Concrete, Discrete Element Method (DEM), Dynamic Simulation
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Abstract

Since meso-structure of plain concrete can not be observed directly, numerical simulation is the main approach to obtain the model coincident with the real structure on statistics. By applying the discrete element method, we have developed the 3D dynamic simulation for random aggregate model of plain concrete. According to the real ration of mass, the spatial positions of aggregate have been obtained, which is more close-grained compared with the random-distributed models based on Monte Carlo method. Compared with the geometrical generating algorithm for 2D random polyhedral aggregate, the algorithm for 2D or 3D random polyhedral aggregate is simpler. The results are the foundation for further studying the interface fracture and chloride diffused channels.