利用ANSYS将混凝土数学模型在计算机上实现，建立混凝土三维随机骨料模型。
The math model is achieved in the computer by ANSYS, and 3-D random aggregate model of concrete is established.
按照试件的实际配比计算出各种粒径骨料的数目，采用蒙特卡罗法对混凝土骨料进行随机投放，生成试件的随机骨料模型。
The Monte Carlo method was used to generate the random aggregate model, and the number of aggregate of different sizes was determined according to the actual mix proportion.
本文采用随机骨料模型和双折线损伤模型相结合，在细观层次上对混凝土在单轴荷载作用下的力学特性和破坏机理进行了数值研究。
In this paper, the random particle model and double lines damage model are used, and uniaxial mechanical properties of concrete and the damage mechanism are integrated on meso-level.
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