| 圆管直梁单元切线刚度矩阵的解析解 |
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| 引用本文： | 王永岗,吕英民,蔡强康. 圆管直梁单元切线刚度矩阵的解析解[J]. 兰州理工大学学报, 1993, 0(4) |
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| 作者姓名： | 王永岗 吕英民 蔡强康 |
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| 作者单位： | 甘肃工业大学机械设计及厂制造工程系，石油大学，石油大学 兰州，730050，北京，100083，北京，100083 |
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| 摘 要： | 从虚位移原理出发,推导了两结点三维圆管直梁单元几何非线性的单元切线刚度矩阵的解析解,为这种单元大变形、小应变分析提供了刚度矩阵的表达式。
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| 关 键 词： | 圆管直梁单元 几何非线性 切线 刚度矩阵 有限元法 |
An Analytical solution of the Tangential Stiffness Matrices for Circular Pipe-Beam Elements |
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| Wang Yonggang. An Analytical solution of the Tangential Stiffness Matrices for Circular Pipe-Beam Elements[J]. Journal of Lanzhou University of Technology, 1993, 0(4) |
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| Authors: | Wang Yonggang |
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| Abstract: | From the principle of virtual displacement,an analytical solution of the tangential stiffness matrices with nonlinear effects geometrically,for two nodal three-dimensional circular pipe-beam elements,has been derived. And a set of stiffness matrices expressions are provided for the analysis of this kind of elements under large deformations but small strains. |
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| Keywords: | circular beam elements geometrically nonlinear tangential stiffness matrix finite element method |
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