| 考虑次剪应力的薄壁杆件扭转刚度矩阵和它的有限元分析 |
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| 引用本文： | 郭乙木,鲁祖统.考虑次剪应力的薄壁杆件扭转刚度矩阵和它的有限元分析[J].浙江大学学报(自然科学版 ),1993,27(2):214-225. |
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| 作者姓名： | 郭乙木 鲁祖统 |
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| 作者单位： | 浙江大学力学系
(郭乙木，鲁祖统)，浙江大学力学系(张亚军) |
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| 摘 要： | 本文推导了薄壁杆件在翘曲位移假设下的扭转刚度矩阵,同时给出了拉(压)、弯曲和扭转下薄壁梁单元刚度矩阵。对不同截面薄壁梁单元的联接进行了研究,并用最小二乘法处理联接处的位移协调,最后给出了计算结果。
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| 关 键 词： | 杆件 次剪应力 薄壁件 扭转 刚度 |
The torsional stiffness matrix of a thin-walled bedm considering secondary shear stress and it's finite element analysis |
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| Guo Yimu Lu Zutong Zhang Yajun.The torsional stiffness matrix of a thin-walled bedm considering secondary shear stress and it''''s finite element analysis[J].Journal of Zhejiang University(Engineering Science),1993,27(2):214-225. |
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| Authors: | Guo Yimu Lu Zutong Zhang Yajun |
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| Affiliation: | Department of Mechanics |
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| Abstract: | Tht torsional stiffness matrix of a thin-walled beam element based on the warping displacement assumption. is derived in this paper. The general stiffness matrix of the element when the beam is under tension (or compression),bending and torsion simultaneously is given. The combination of two elements with different cross-sections is studied and the compatibiliy of displacements for them is satisfied in the sense of least aquare technique. The numerial results are presented at the end. |
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| Keywords: | thin-walled beam bimoment secondary shear stress |
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