| 带转角自由度的四边形六面体单元 |
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| 引用本文： | 王选民 刘光栋. 带转角自由度的四边形六面体单元[J]. 工程力学, 1998, 15(3): 15-21 |
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| 作者姓名： | 王选民 刘光栋 |
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| 作者单位： | 湖南大学结构工程研究所 |
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| 摘 要： | 本文提出了三个带转角自由度单元，其中一个平面四边形单元，两个空间六面体单元。对平面单元每个结点有两个线位移自由度、一个转角自由度；对空间单元，每个结点有三个线位移自由度、三个转角自由度。这些单元列式简单，其中两个无多余零能模式，数值计算表明，它们的计算精度高。
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| 关 键 词： | 四边形单元，六面体单元，有限元，结构分析 |
A QUADRILATERAL ELEMENT AND TWO HEXAHEDRONELEMENTS WITH ROTATIONAL DOF |
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| Wang Xuanmin. A QUADRILATERAL ELEMENT AND TWO HEXAHEDRONELEMENTS WITH ROTATIONAL DOF[J]. Engineering Mechanics, 1998, 15(3): 15-21 |
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| Authors: | Wang Xuanmin |
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| Abstract: | Three elements with rotational DOFs are presented, a 4-node quadrilateral element with two translational and a rotational DOFs per node,two 8-node hexahedron elements with three translational and three rotational DOFs per node.these elements have simple formulation and some of them do not contain any spurious zero energy mode,Numerical results demonstrate that the elements have very good accuracy. |
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| Keywords: | quadrilateral element hexahedron element finite element structural analysis |
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