| 薄壁柱相关屈曲分析的混合有限元模型 |
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| 引用本文： | 朱慈勉,沈祖炎.薄壁柱相关屈曲分析的混合有限元模型[J].同济大学学报(自然科学版),1997,25(1):11-16. |
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| 作者姓名： | 朱慈勉 沈祖炎 |
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| 作者单位： | 同济大学建筑工程系!上海，200092 |
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| 摘 要： | 提出了一种用于薄层柱局部屈曲与整体屈曲相互使用问题的新的分析模型－混合有了元模型，模型将平面壳单元，杆单元和线单元联合应用于薄壁柱的非线性反庆分析，考虑了柱子的各种初始缺陷的影响，计算了分析表明，文中提出了分析模型精确，高效，并且具有广泛的适用性。
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| 关 键 词： | 薄壁柱 相关屈曲 混合有限元模型 |
Mixed Finite Element Model for the Interactive Buckling Analysis of Thin-walled Columns |
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| Zhu Cimian, Shen Zuyan.Mixed Finite Element Model for the Interactive Buckling Analysis of Thin-walled Columns[J].Journal of Tongji University(Natural Science),1997,25(1):11-16. |
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| Authors: | Zhu Cimian Shen Zuyan |
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| Abstract: | A new analytical model, mixed finite element model, which includes acombined use of shell element, frame eleri1ent and line element, is presented in thispaper for tho interactivc buckling analysis of thin-walled columns-The columnimperfections, such as initial dcformations and rcsidual stresses are taken intoaccount. Good agreement is found between the theoretical predictions andexperimental resu1ts. |
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| Keywords: | Thin-walled columns Interactive buckling Mixed finite element model |
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