| 一种精确的薄壁杆单元 |
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| 引用本文： | 黎胜,郭昌捷.一种精确的薄壁杆单元[J].大连理工大学学报,2001,41(3):270-272. |
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| 作者姓名： | 黎胜 郭昌捷 |
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| 作者单位： | 大连理工大学船舶工程学院 |
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| 摘 要： | 构造了一种新的有4个节点，22个自由度薄壁杆单元，其能考虑杆件的翘曲和剪切变形，能精确描述薄壁杆件的纯状态和非均匀扭转，而且适用于任何剖面（开口，闭口和混合剖面），数值算例表明该单元计算精芳高，可用于薄壁杆件结构的静动力分析。
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| 关 键 词： | 翘曲函数 有限元法 薄壁杆件 扭转 |
| 文章编号： | 1000-8608(2001)03-0272-03 |
An exact thin-walled beam element |
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| LI Sheng,GUO Chang jie.An exact thin-walled beam element[J].Journal of Dalian University of Technology,2001,41(3):270-272. |
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| Authors: | LI Sheng GUO Chang jie |
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| Abstract: | This paper presents a new exact thin walled beam element with 4 nodes and 22 degrees of freedom. The present element includes both shear and warping deformations. It can exactly model the pure bending and the non uniform torsion of beams, and is valid for any cross sections (open, closed and mixed). Numerical examples show that the proposed element is very accurate and suitable to both static and dynamic analyses of thin walled beams. |
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| Keywords: | warping function finite element method/thin walled beams |
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