| 复合材料层合板的稳定性分析 |
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| 引用本文： | 王颖坚.复合材料层合板的稳定性分析[J].北京大学学报(自然科学版),1989,25(1):75-89. |
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| 作者姓名： | 王颖坚 |
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| 作者单位： | 北京大学力学系 |
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| 摘 要： | 本文从适用于几何非线性分析的增量形式的虚功方程出发,建立了有限元计算公式。为保证层合板各层间的变形协调性,采用了离散罚函数方法。运用弧长法在稳定性计算中跟踪平衡过程曲线。进行了后屈曲分析。用有限元程序,计算了几个算例,得到较好的结果。
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| 关 键 词： | 复合材料 稳定性 罚函数 层合板 |
Stability Analysis of Composite Laminates |
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| Wang Yingjian.Stability Analysis of Composite Laminates[J].Acta Scientiarum Naturalium Universitatis Pekinensis,1989,25(1):75-89. |
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| Authors: | Wang Yingjian |
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| Institution: | Department of Mechanics |
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| Abstract: | A incremental virtual work equation, which is suitable for geometric nonlinear analysis of structures, is derived in this paper. Then, corresponding formulae of nonlinear finite elementes are obtained.To achive compatibility of interlaminar deformations of composite laminates, the penalty function technique is adopted. The arc-length method is used to trace the load-deformation curve in stability calculation and post-buckling analysis.Some examples of composite sandwich plates are computed by using the nonlinear finite element programme and some satisfied results are obtained. |
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| Keywords: | Composite laminates stability analysis penalty function technique Arc-length method |
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