| 层合板热后屈曲分析中的Lagrangian方法 |
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| 引用本文： | 朱菊芬,汪海.层合板热后屈曲分析中的Lagrangian方法[J].大连理工大学学报,1996,36(2):145-151. |
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| 作者姓名： | 朱菊芬 汪海 |
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| 作者单位： | 大连理工大学工程力学研究所，沈阳飞机研究所 |
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| 摘 要： | 从研究层合板热后屈曲路径出发，阐述了板（梁）几何非线性有限元分析中的ＴＬ方法和ＵＬ方法，基于Ｖｏｎ－Ｋａｒｍａｎ大挠度理论，分析了两种方法的差异和适用范围；通过算例指出对于层合板的热后屈曲路径的研究，只有采用ＵＬ方法才能保证在较大变形范围内正确求解。
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| 关 键 词： | 非线性 层板 热后屈曲 拉格朗日法 |
Lagrangian method for thermal postbuckling analysis of laminated panels |
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| Zhu Jufen, Wang Hai.Lagrangian method for thermal postbuckling analysis of laminated panels[J].Journal of Dalian University of Technology,1996,36(2):145-151. |
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| Authors: | Zhu Jufen Wang Hai |
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| Abstract: | Originating from thermal postbuckling analysis of laminated plates this paper roughly describes TL and UL methods in geometrical nonlinear element analysis. Based on Von-Karman large deflection theory, the differences between methods and available range are demonstrated.A series of numerical examples indicate that the accuracy and reliability of solution for a wide range of deformation can be ensured only by means of UL method for solving thermal postbuckling path of laminated plates. |
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| Keywords: | non-linear laminates/thermal postbuckling Lagrangian method |
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