%0 Journal Article
%A QU Jin
%A LOU Zong-ke
%A LIU Zhao-song
%T Modeling of Concrete’s Random Aggregate on Mesoscopic Level
%D 2015
%R 10.3969/j.issn.1001-5485.2015.04.025
%J Journal of Yangtze River Scientific Research Institute
%P 129-132
%V 32
%N 4
%X In mesoscopic sense, concrete is a  three-phase composite material  which is composed  of aggregate, mortar and the interface layer between them. The interface layer is the  weakest part of concrete,  and is also the main cause of concrete’s low tensile strength. MATLAB software is used to establish three random aggregate models of circle, polygon and elliptic shape  and to  generate the interface layer of certain thickness. Furthermore, finite element software ABAQUS is employed to establish two-dimensional  mesoscopic numerical model of concrete. Computation examples show that  the  algorithm is simple and the model is reliable. By introducing interface layer and grid subdivision, we  provide a foundation for the numerical simulation of concrete’s damage fracture mechanism, and effectively solve the  problem of connection among  MATLAB, AUTOCAD and finite element software.
%U http://ckyyb.crsri.cn/EN/10.3969/j.issn.1001-5485.2015.04.025