| 引用本文: | 任钧国,张书俊,欧阳勇.一种高精度六面体广义协调元.[J].国防科技大学学报,2001,23(6):13-16.[点击复制] |
| REN Junguo,ZHANG Shujun,OUYANG Yong.A Hexahedron Generalized Conforming Element with High Accuracy[J].Journal of National University of Defense Technology,2001,23(6):13-16[点击复制] |
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| 一种高精度六面体广义协调元 |
| 任钧国, 张书俊, 欧阳勇 |
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(国防科技大学 航天与材料工程学院, 湖南 长沙 410073)
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| 摘要: |
| 在八节点六面体等参单元的基础上在其各个面的法向方向上增加一个自由度，同时为了提高精度，改善其性能，消除几何敏感性，又引入七个非协调的内部位移函数和一个泡状函数作为附加位移。数值计算表明该单元的性能良好。 |
| 关键词: 法线方向 六面体单元 广义协调元 有限元法 |
| DOI： |
| 投稿日期：2001-06-10 |
| 基金项目: |
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| A Hexahedron Generalized Conforming Element with High Accuracy |
| REN Junguo, ZHANG Shujun, OUYANG Yong |
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(College of Aerospace and Materials Engineering,National Univ. of Defense Technology, Changsha 410073,China)
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| Abstract: |
| In this paper a normal freedom on each area is given on 8-node hexahedron isopapametric element. At the same time seven unconforming inner displacement functions and one bubble function are adopted as additional displacement in order to eliminate geometry sensitivity and gain high precision. Numerical results show that this element is of excellent properties. |
| Keywords: normal hexahedron element generalized conforming element FEM |
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