| 膜结构褶皱有限元分析 |
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| 引用本文： | 张颖,方有亮,李会云,阎红霞. 膜结构褶皱有限元分析[J]. 河北大学学报(自然科学版), 2010, 30(2) |
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| 作者姓名： | 张颖 方有亮 李会云 阎红霞 |
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| 作者单位： | 河北大学建筑工程学院,河北,保定,071002 |
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| 基金项目： | 河北大学博士基金资助项目(Y2004043);;校内重点基金资助项目(Z200402);;河北大学青年基金资助项目(2005Q22) |
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| 摘 要： | 借助Fortran程序语言,对膜单元采用三节点九自由度的空间三角形单元,考虑初始预应力形成切线刚度矩阵,对膜结构进行几何非线性分析.依据张力场理论,针对膜材不抗压的特点,改进褶皱区域单元的本构关系矩阵,修改单元刚度矩阵,给出单元出现褶皱情况.验算平面矩形膜弯曲模型,说明了程序的可靠性.
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| 关 键 词： | 薄膜结构 张力场 褶皱 分叉屈曲 本构矩阵 |
Finite Element Analysis of Wrinkling Membrane Structures |
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| ZHANG Ying,FANG You-liang,LI Hui-yun,YAN Hong-xia. Finite Element Analysis of Wrinkling Membrane Structures[J]. Journal of Hebei University (Natural Science Edition), 2010, 30(2) |
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| Authors: | ZHANG Ying FANG You-liang LI Hui-yun YAN Hong-xia |
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| Affiliation: | College of Civil Engineering and Architecture;Hebei University;Baoding 071002;China |
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| Abstract: | The program is completed by FORTRAN,the geometrically nonlinear analysis of membrane structures is performed by using the spacial triangle membrane element with three node and nine freedom,and the pre-stress is considered with tangent stiffness matrix.The membrane can not resist compression stress,the constitutive matrix is modified considering tension theory to modify the stiffness matrix,and the wrinkling zone is obtained.The solution of the prestressed membrane in pure bending is well compared with the t... |
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| Keywords: | membrane structures tension field wrinkling bifurcation buckling constitutive matrix |
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