防撓パネルの座屈・塑性崩壊解析におけるFEMモデル化に関する考察

概要

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The finite element method is usually used for the buckling/plastic collapse analyses of stiffened plates subjected to combined thrust and lateral loads. When a continuous stiffened plate is considered, it may be enough if a part of the whole plate is analysed introducing symmetrical and/or periodically continuous conditions along the boundaries of the analysed part. In this case, the range of modelling affects the calculated results. From this point of view, in this paper, double span model and triple span model are compared, and so double bay model and triple bay model. It has been found that triple span/triple bay model with periodically continuous condition is most appropriate to represent all possible buckling/plastic collapse behaviour of continuous stiffened plates under combined thrust and lateral loads.
社団法人日本船舶海洋工学会の論文
1998-03-29