| 空间刚架结构屈曲及后屈曲失效过程分析 |
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| 引用本文： | 刘正兴,李德建.空间刚架结构屈曲及后屈曲失效过程分析[J].上海交通大学学报,1992,26(4):44-50. |
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| 作者姓名： | 刘正兴 李德建 |
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| 作者单位： | 上海交通大学工程力学系，上海交通大学工程力学系 |
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| 基金项目： | 国家自然科学资助项目. |
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| 摘 要： | 本文应用非线性杂交应力单元进行空间刚架结构大挠度屈曲及后屈曲失效过程分析.采用了一种根据当前刚度参数而交替使用载荷、位移控制迭代来追踪屈曲路径、临界载荷的数值计算方法.计算结果表明,本方法确是行之有效,并对工程实际设计有一定的参考价值.
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| 关 键 词： | 后屈曲 失效过程 刚架结构 |
An Analysis of Buckling and Post-buckling Collapse Process of Space Frame Structures |
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| Liu Zhengxing Li Dejian.An Analysis of Buckling and Post-buckling Collapse Process of Space Frame Structures[J].Journal of Shanghai Jiaotong University,1992,26(4):44-50. |
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| Authors: | Liu Zhengxing Li Dejian |
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| Institution: | Liu Zhengxing Li Dejian |
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| Abstract: | The paper explores the large displacement buckling and post-bucklingcollapse behavior of space frame structures.By using the geometrically nonlinearstress hybrid shallow beam element.A numerical solution procedure is presented.in which both the load and displacement incremental iterative techniques are usedinteractively according to the current stiffness parameter to trace the equilibriumpath and limit points.Numerical studies demonstrate the efficiency of the presentmethod and the results can be used in design applications. |
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| Keywords: | post-buckling current stiffness parameter load incremental iterative displacement incremental iterative collapse process |
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