By means of selecting penny shaped crack model to simulate the defects in concrete,the damage model for concrete under multiaxial stress state was developed based on statistical fracture theory.

• 以圆盘裂纹模型模拟混凝土内部的缺陷,基于统计断裂理论推导出了多轴应力下混凝土的损伤统计模型,并根据应变等价假说,建立了包含损伤的混凝土的基本本构关系。