本论文立足于对混凝土材料特性的认识，提出一个进行混凝土损伤与断裂过程模拟的细观数值模型。

This paper is based on the understand of the concrete material. The mathematic model to study the process of concretes damage and fracture is being put forward.

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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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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。

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.

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