| 基于细观层次的混凝土抗压强度与尺寸效应的数值模拟 |
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| 引用本文： | 孙占青. 基于细观层次的混凝土抗压强度与尺寸效应的数值模拟[J]. 黑龙江工程学院学报, 2011, 25(1): 6-9 |
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| 作者姓名： | 孙占青 |
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| 作者单位： | 北京工业大学建筑工程学院,北京,100124 |
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| 摘 要： | 为了实现混凝土试件抗压强度与尺寸效应的仿真计算分析,在细观尺度下,把混凝土看作是由砂浆、粘结带和骨料组成的三相复合材料,细观尺度下的各相物理力学参数都以试验数据为依据,用随机骨料模型代表混凝土细观结构,利用有限元法和混凝土细观力学的本构关系,借助于计算机强大的运算能力,对混凝土复杂的力学行为进行数值模拟.通过计算发现:...
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| 关 键 词： | 细观尺度 随机骨料模型 抗压强度 尺寸效应 数值模拟 本构模型 |
Numerical simulation of concrete compressive strength and size effect based on meso-level |
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| SUN Zhan-qing. Numerical simulation of concrete compressive strength and size effect based on meso-level[J]. Journal of Heilongjiang Institute of Technology, 2011, 25(1): 6-9 |
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| Authors: | SUN Zhan-qing |
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| Affiliation: | SUN Zhan-qing (College of Architecture and Civil Engineering,Beijing University of Technology,Beijing 100124,China) |
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| Abstract: | In order to realize a numerical simulation of compressive strength and characteristics for concrete,at the meso-scale,the concrete is taken as a non-uniform three-phase composite materials by cement motor,aggregate and bond layer between them.At the meso-scale,physical mechanical parameters of each phase are based on experimental date.We,using random aggregate model on behalf of mesostructuer and finite element method and mesomechanics constitutive relations,make use of powerful computing of computer to sim... |
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| Keywords: | meso-scale aggregate random model compressive strength size effect numerical simulation constitutive model |
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