摘要
基于ABAQUS损伤塑性本构模型,采用粘塑性归一化方法和控制位移增量法,对三维混凝土模型在竖向拉伸应变分别为7×10-5、8×10-5和10-4三种情况下的损伤与断裂过程进行数值模拟。结果表明,基于ABAQUS的损伤塑性本构模型能较好地模拟混凝土试件在不同拉伸应变下裂纹萌生、扩展到宏观裂纹形成的破坏过程,且与物理试验结果基本吻合。
Based on the ABAQUS damaged plasticity constitutive model, viscoplastic normalization and controlling displacement increment methods are used to simulate the process of damage and fracture for three-dimensional concrete model under conditions of the vertical tensile strain 7×10^-5 ,8×10^-5 and 10^-4. The results show that the concrete speci mens damage process can be simulated from the crack initiation, crack expansion to the formation of macroscopic crack, and it is consistent with physical test based on the ABAQUS damaged plasticity constitutive model.
出处
《水电能源科学》
北大核心
2013年第5期96-99,共4页
Water Resources and Power
关键词
损伤塑性本构模型
裂纹扩展
控制位移增量法
粘塑性归一化
数值模拟
damaged plasticity constitutive model
crack expansion
control displacement increment method
visco-plastic normalization
numerical simulation
