| 基于质点平衡法的混凝土三点弯曲梁破坏过程模拟 |
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| 引用本文： | 魏勇,熊勃勃,卢晓春. 基于质点平衡法的混凝土三点弯曲梁破坏过程模拟[J]. 水电能源科学, 2021, 39(3): 120-123 |
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| 作者姓名： | 魏勇 熊勃勃 卢晓春 |
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| 作者单位： | 国网甘肃省电力公司经济技术研究院,甘肃兰州730050;三峡大学水利与环境学院,湖北宜昌443002 |
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| 基金项目： | 国家自然科学基金青年基金项目(52009068);湖北省教育厅青年人才项目(Q20201203)。 |
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| 摘 要： | 针对现有混凝土破坏过程模拟方法存在的不足,将质点平衡法应用于混凝土三点弯曲梁的开裂特性模拟。结果表明,结构自身的应力分布决定裂缝的分布区域,而混凝土内部各组分的力学性能直接决定裂缝细部扩展路径,质点平衡法适合模拟考虑细观结构的混凝土结构的开裂特性。研究成果可为混凝土细观力学特性的研究提供参考。
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| 关 键 词： | 质点平衡法 混凝土细观力学 开裂特性 混凝土三点弯曲梁 |
Simulation of Cracking Process of Three-point Bending Concrete Beam Based on Particle Equilibrium Method |
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| WEI Yong,XIONG Bo-bo,LU Xiao-chun. Simulation of Cracking Process of Three-point Bending Concrete Beam Based on Particle Equilibrium Method[J]. International Journal Hydroelectric Energy, 2021, 39(3): 120-123 |
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| Authors: | WEI Yong XIONG Bo-bo LU Xiao-chun |
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| Affiliation: | (Gansu Electric Power Research Institute of Economics and Technology,Lanzhou 730050,China;College of Hydraulic and Environmental Engineering,China Three Gorges University,Yichang 443002,China) |
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| Abstract: | With respect to the deficiency of the existing method for simulating the failure process in concrete,particle equilibrium method(PEM)is used to study the cracking characteristics of concrete three-point bending beam.The results show that the stress distribution of the structure directly determines the distribution domain of the crack,and the mechanical properties of various components in concrete directly determine the crack propagation path.The PEM is appropriate for simulating the cracking characteristics of concrete structure in consideration of microstructure.The research can provide a reference for the study of concrete micro mechanical properties. |
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| Keywords: | particle equilibrium method concrete micro-mechanics cracking property three-point bending concrete beam |
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