A simple closed-form analytical model for the column buckling of omega-stinger-stiffened panels with periodic boundary conditions
A simple closed-form analytical model for the column buckling of omega-stinger-stiffened panels with periodic boundary conditions
复制标题
具有周期性边界条件的 omega 托管板柱屈曲的简单闭式分析模型
DOI：
10.1016/j.rineng.2020.100120
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
C. Mittelstedt
中科院分区：
文献类型：
--
作者：
J. C. Schilling;C. Mittelstedt
在加筋板的初步设计过程中，稳定性行为至关重要，必须考虑整体和局部两种屈曲模式，以避免无法实现纵梁最小刚度的板配置。在目前的工作中，提出了一种新的简单计算模型，用于计算具有周期性边界条件的欧米茄纵梁加强板的临界柱屈曲载荷。这是通过获得等效复合柱的有效刚度属性来实现的。正如数值研究所示，该模型能够保守地预测柱屈曲，并且可以轻松使用，例如作为优化研究的约束。
During the preliminary design of stiffened panels, the stability behaviour is critical and both buckling modes, global and local, have to be considered in order to avoid panel configurations in which the minimum stiffness of the stringers is not achieved. In the present work, a new simple computational model is presented that computes the critical column buckling load of an omega-stringer-stiffened panel with periodic boundary conditions. This is achieved by obtaining the effective stiffness properties for an equivalent composite column. The model is able to predict column buckling conservatively as numerical studies show and can easily be used, e.g. as a constraint for optimization studies.