In order to reflect the heterogeneity of concrete at mesoscopic level, the concrete is firstly assumed to be a two-phase composite composed of matrix, aggregate, holes, and cracks. Then a random aggregate numerical model is constructed with Monte Carlo method.
为了反映材料细观层次上的非均匀性,本文假设混凝土是由砂浆为基相,粗集料、孔、裂缝为分散相的一级二相复合材料,运用蒙特卡洛方法,建立了随机集料数值模型,并采用有限元法的思想,利用Delaunay三角网进行单元网格自动剖分。
参考来源 - 混凝土细观结构的数值模拟Concrete is a composite material with a three-phase of inhomogeneities in mesoscopic level. It is consisting of coarse aggregate mortar matrix and interfacial zones between the coarse aggregate and the mortar matrix.
在细观层次上，混凝土被视为由粗骨料、水泥砂浆基体及二者间的粘结带组成三相非均质复合材料。
参考来源 - 混凝土细观力学分析与实验模拟·2,447,543篇论文数据，部分数据来源于NoteExpress
The behavior of materials at mesoscopic level is key to the macroscopic behavior.
细观层次上的材料行为对于材料的宏观行为起着关键的作用。
The concrete was taken as a two-phase composite material consisting of mortar matrix and aggregate on mesoscopic level in the numerical simulation approach for polygonal aggregate.
混凝土多边形骨料的数值模拟方法在细观层次上将混凝土看成是一种由骨料和砂浆基体所组成的二相复合材料。
A linear elastic damage model based on finite element method at mesoscopic level was applied to investigate the three-dimensional failure process of rock subjected to various stress loadings.
采用细观弹性损伤模型和有限元计算方法实现岩石三维破裂过程的数值模拟。
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