加筋碟形薄壳的塑性屈曲分析

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Plastic Buckling of Stiffened Torispherical Shell

Dept. of Naval Architecture and Ocearl Engineering, Huazhong University of Science and Technology, Wuhan 430074, P. R. China

摘要: 本文采用非线性前屈曲一致理论分析均布外压下加筋碟形薄壳的塑性屈曲问题,建立了这类壳体的能量表达式和屈曲方程,给出了简明的计算格式,数值分析结果表明,所导出的算法具有较好的精度,计算过程也简单方便。
- 加筋旋转薄壳 /
- 碟形薄壳 /
- 均布外压 /
- 塑性屈曲
Abstract: This paper uses the nonlinear prebuckling consisten theory to analyse the plasticbuckling problem of of stiffned torispherical shell under uniform exlernal pressure. Thebuckling equation and energy expressions of the shell are built. the calculation formulais presented Numerical examples show that method in ths paper has betterprecision and the calculating process is very simple.
- stiffened shell of revolution /
- torispherical shell /
- uniform externalpressure /
- plastic buckling

[1]	D,Bushnell,Computerized Buckling Analysis of Shells,Martinus Nijhoff Publishers,Dordrecht(1985).
[2]	力学所板壳组,《加肋圆柱板与圆柱壳》,科学出版社(1983).
[3]	郝刚、曾广武,加筋碟形薄壳屈曲试验,华中理工大学学报,22(12)(1995).