碾压混凝土单轴抗拉强度尺寸效应的数值模拟

Numerical simulation for the size effect of the uniaxial tension strength of rolled concrete

碾压混凝土与混凝土一样也存在着尺寸效应。采用随机骨料模型模拟碾压混凝土的细观结构,利用有限元方法数值模拟碾压混凝土试件单轴抗拉的细观损伤断裂,并重点对单轴抗拉强度尺寸效应进行了研究。

There is size effect to rolled concrete as concrete too. The random aggregate model was used to simulate the structure of concrete. The extension of cracks and the mechanic properties of rolled concrete in uniaxial tension test were simulated by finite method. The size effect on uniaxial tension strength of rolled concrete was studied primarily.