| 基于损伤塑性本构模型的混凝土拉伸裂纹扩展数值模拟 |
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| 引用本文： | 贺誉,彭刚,王敏,吴彬.基于损伤塑性本构模型的混凝土拉伸裂纹扩展数值模拟[J].水电能源科学,2013,31(5):96-99. |
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| 作者姓名： | 贺誉 彭刚 王敏 吴彬 |
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| 作者单位： | 三峡大学 土木与建筑学院, 湖北 宜昌 443002;三峡大学 土木与建筑学院, 湖北 宜昌 443002;三峡大学 土木与建筑学院, 湖北 宜昌 443002;三峡大学 土木与建筑学院, 湖北 宜昌 443002 |
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| 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。
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| 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 |
Numerical Simulation of Concrete Tensile Crack Extension Based on Damaged Plasticity Constitutive Model |
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| HE Yu,PENG Gang,WANG Min and WU Bin.Numerical Simulation of Concrete Tensile Crack Extension Based on Damaged Plasticity Constitutive Model[J].International Journal Hydroelectric Energy,2013,31(5):96-99. |
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| Authors: | HE Yu PENG Gang WANG Min and WU Bin |
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| Affiliation: | College of Civil Engineering & Architecture, China Three Gorges University, Yichang 443002, China;College of Civil Engineering & Architecture, China Three Gorges University, Yichang 443002, China;College of Civil Engineering & Architecture, China Three Gorges University, Yichang 443002, China;College of Civil Engineering & Architecture, China Three Gorges University, Yichang 443002, China |
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| Abstract: | 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 specimens 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. |
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| Keywords: | damaged plasticity constitutive model crack expansion control displacement increment method viscoplastic normalization numerical simulation |
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