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

作者：Zhang NaiLong; Guo XiaoMing^*; Zhu BiBo; Guo Li

来源：Science China Technological Sciences, 2012, 55(12): 3278-3284.

DOI：10.1007/s11431-012-5035-y

• cement concrete
• fracture
• Monte-Carlo method
• aggregate generation and packing algorithm
• mesoscale models

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.

• 出版日期2012-12
• 单位东南大学