On the Stability Analysis of Plates and Shells Using a Quadrilateral,16-Degrees of Freedom Plat Shell Element DKQ16
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摘要: 应用新近开发的四边形十六自由度离散Kirchhoff平板壳单元DKQ16,分析了板壳结构的线性屈曲问题,建立了相应的几何刚度矩阵.通过对几个典型算例的计算与比较,说明了DKQ16单元在板壳结构的稳定性中也有良好的精度.Abstract: The linear buckling problems of plates and shells were analysed using a recently developped quadrilateral, 16-degrees of freedom flat shell element (called DKQ16). The geometrical stiffnees matrix was established. Comparision of the numerical results for several typical problems shows that the DKQ16 element has a very good precision for the linear buckling problems of plates and shells.
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Key words:
- plate and shell structure /
- stability /
- flat shell element
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