| 矩形板中心裂纹有限元数值分析 |
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| 引用本文： | 孙宏才,高磊,徐关尧,胥银华.矩形板中心裂纹有限元数值分析[J].解放军理工大学学报,2006,7(3):271-274. |
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| 作者姓名： | 孙宏才 高磊 徐关尧 胥银华 |
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| 作者单位： | 总装备部工程兵科研二所,北京,100093;解放军理工大学,工程兵工程学院,江苏,南京,210007 |
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| 摘 要： | 为了计算构件裂纹断裂参量应力强度因子,利用有限元方法对矩形板中心裂纹断裂参量应力强度因子的计算进行了研究.在建立有限元模型时对于裂纹尖端的单元,采用节点-单元的方式生成二次奇异单元.同时对矩形板中心裂纹的应力强度因子的计算公式进行了修正,得到了简便的公式.为计算类似的裂纹断裂参量提供了参考和借鉴.
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| 关 键 词： | 应力强度因子 矩形板 有限元 裂纹 |
| 文章编号： | 1009-3443（2006）03-0271-04 |
| 收稿时间： | 2005-12-04 |
| 修稿时间： | 2005年12月4日 |
Finite element numerical analysis in center-cracked rectangular panel |
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| SUN Hong-cai,GAO Lei,XU Guan-yao and XU Yin-hua.Finite element numerical analysis in center-cracked rectangular panel[J].Journal of PLA University of Science and Technology(Natural Science Edition),2006,7(3):271-274. |
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| Authors: | SUN Hong-cai GAO Lei XU Guan-yao and XU Yin-hua |
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| Affiliation: | The Second Engineers Scientific Research Institute of the General Armaments Department. Beijing 1000931 China;Engineering Institute of Corps of Engineers,PLA Univ. of Sci. &. Tech. .Nanjing 210007.China;The Second Engineers Scientific Research Institute of the General Armaments Department. Beijing 1000931 China;Engineering Institute of Corps of Engineers,PLA Univ. of Sci. &. Tech. .Nanjing 210007.China |
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| Abstract: | In order to calculate of the stress intensity factors fracture parameters, stress intensity factors in the center-cracked rectangular panel were studied by FEA method. When FEA model was formed, the quadratic singular elements of the tip of the crack were formed by node to element. The calculation expression of the center-cracked rectangular panel was revised. A simple expression was gained. It provides reference for similar fracture parameters calculation. |
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| Keywords: | stress intensity factors rectangular panel finfite element fracture |
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