| 具有中心弹簧支承的极正交各向异性圆板的稳定性分析 |
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| 引用本文： | 韩建平,李论.具有中心弹簧支承的极正交各向异性圆板的稳定性分析[J].兰州大学学报(自然科学版),1996,32(2):26-31. |
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| 作者姓名： | 韩建平 李论 |
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| 作者单位： | 兰州大学力学系，西安石油学院机械系 |
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| 摘 要： | 利用非线性有限元方法，研究了具有中心弹簧支承的极正交向向异性圆板的稳定性问题，计算了前三个临界载荷（分支点）和相应的分支解，得到了过屈曲状态的大泛围响应，发现由于弹簧约束过屈模态变化的现象，并预测了二次屈曲的可能性。
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| 关 键 词： | 稳定性 各向异性 板 临界载荷 分支解 |
Stability Analysis of Polar Orthotropic Circular Plates with Spring Costraint at the Center |
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| Han Jianping,Che Jinglan.Stability Analysis of Polar Orthotropic Circular Plates with Spring Costraint at the Center[J].Journal of Lanzhou University(Natural Science),1996,32(2):26-31. |
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| Authors: | Han Jianping Che Jinglan |
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| Abstract: | The stability of polar orthotropic circular plates with spring constraint at the center is discussed by using the non linear finite element method. The first three critical loads and corresponding bifurcation solutions are calculated. The responses of post buckling states are obtained on a large scale of load and it is found that the buckled mode will change due to the spring constraint and the secondary buckling will occur as the load increases. |
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| Keywords: | stability polar orthotropic plates critical loads bifurcation solutions |
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