| 混凝土试件裂纹扩展及破坏过程的计算机模拟 |
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| 引用本文： | 朱万成,黄明利,唐春安.混凝土试件裂纹扩展及破坏过程的计算机模拟[J].辽宁工程技术大学学报(自然科学版),2000,19(3):271-274. |
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| 作者姓名： | 朱万成 黄明利 唐春安 |
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| 作者单位： | 1. 东北大学岩石破裂与失稳研究中心,沈阳,110006
2. 辽宁工程技术大学 |
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| 基金项目： | 国家杰出青年科学基金，中科院LNM开放实验室开放基金 |
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| 摘 要： | 运用一个材料破坏过程分析ＭＦＰＡ＾２Ｄ系统，研究了混凝土试件中的裂纹扩展及破坏过程。该方法认为宏观破坏行为是由于具有弹性一脆性特征的细观微元体不断破裂造成的。而造成微元体不断破裂的原因是策元体材料性质的非均匀性。本文根据骨科类型和考虑界面与否，分４种情况模拟了混凝土试件的变形与破坏过程并给出模拟结果及结果分析。
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| 关 键 词： | 混凝土试件 裂纹扩展 破坏过程 计算机模拟 |
| 修稿时间： | 1998-12-19 |
Computer Simulation on Cracks Propagation and Failure Process of Concrete Specimen |
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| Zhu Wancheng,Huang Mingli,Tang Chun'an.Computer Simulation on Cracks Propagation and Failure Process of Concrete Specimen[J].Journal of Liaoning Technical University (Natural Science Edition),2000,19(3):271-274. |
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| Authors: | Zhu Wancheng Huang Mingli Tang Chun'an |
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| Abstract: | Propagaion of microcracks in concrete specimen and failure process of concrete specimen are studiedby using a numerical code, called MFPA2D that can achieve the failure process analysis of materials. This methodconsiders that macro-failure activity is due to the progressive failure of elastic and brittle microelements.The reason that progressive failure of microelements is the uniformity of their material properties. According to theproperties of aggregates and caring about interfaces or not, four models are used to simulate the failure ofconcrete.The results and their reasons are given. |
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| Keywords: | concrete deformation and failure numerical simulation non-uniformity interface |
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