A mesoscale model based on Monte-Carlo method for concrete fracture behavior study

查看全文 作　　者：ZHANG [1,2]NaiLong;GUO [1,2]XiaoMing;ZHU [3]BiBo;GUO [1,2]Li

机构地区：[1]Department of Engineering Mechanics,School of Civil Engineering,Southeast University,Nanjing 210096,China;[2]Jiangsu Key Laboratory of Engineering Mechanics,Southeast University,Nanjing 210096,China;[3]Daya Bay Nuclear Power Operations and Management Company,Shenzhen 518110,China

出　　处：《Science China(Technological Sciences)》索引2012年第55卷第12期,共7页

基　　金：supported by the Specialized Research Fund for the Doctoral Program (SRFDP) of Higher Education of China (Grant No.20100092110049);Jiangsu Provincial Science Foundation Program of China (Grant No. BK2009259);the National Basic Research Program of China ('973' Project) (Grant No. 2009CB623202);the National Natural Science Foundation of China (Grant No. 11072060) 摘　　要：An aggregate generation and packing algorithm based on Monte-Carlo method is developed to express the aggregate random distribution in cement concrete. A mesoscale model is proposed on the basis of the algorithm. In this model, the concrete consists of three parts, namely coarse aggregate, cement matrix and the interfacial transition zone (ITZ) between them. To verify the proposed model, a three-point bending beam test was performed and a series of two-dimensional mesoscale concrete models were generated for crack behavior investigation. The results indicate that the numerical model proposed in this study is helpful in modeling crack behavior of concrete, and that treating concrete as heterogeneous material is very important in fracture modeling. 关键词：中尺度数值模式混凝土骨料蒙特卡罗方法 MONTE-CARLO方法行为研究数值模型断裂水泥基体

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A mesoscale model based on Monte-Carlo method for concrete fracture behavior study

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