摘要
根据Weibull统计分布理论推导了钢纤维混凝土(SFRC)的损伤本构模型,基于试验数据得到了SFRC模型参数。利用ANSYS软件在细观上建立钢纤维混凝土立方体试件有限元模型,并对其单轴压受力下的力学性能和破坏状态进行了数值模拟,研究钢纤维长径比对钢纤维混凝土抗压强度的影响。结果表明,SFRC细观模型能较好的模拟单轴受压下混凝土的静力学性能和损伤破坏。
According to Weibull Statistical Distribution Theory, the damage constitutive model of SFRC is derived, and the SFRC model parameters are obtained based on the test data. The finite element model of steel fiber reinforced concrete cube specimen is established by using ANSYS, The mechanical properties and failure state under uniaxial compression stress are numerically simulated to study the effect of aspect ratio of steel fiber on the compressive strength of steel fiber reinforced concrete. The results show that the meso mechanical model of steel fiber reinforced concrete can simulate the static and damage properties of concrete under uniaxial compression.
出处
《混凝土与水泥制品》
北大核心
2018年第8期56-59,共4页
China Concrete and Cement Products
基金
生态再生混凝土应用关键技术研究(15zh0110)
关键词
钢纤维混凝土
单轴受压
ANSYS数值模拟
长径比
Steel fiber reinforced concrete
Uniaxial compression
ANSYS numerical simulation
Aspect ratio
