ランダム外乱を受ける偏平球殻の動座屈 : その2 周期外乱を受ける偏平球殻の動座屈に与える静的荷重の影響

概要

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The purpose of this paper is to study the dynamic buckling behaviors under the influence of static pressure loads for shallow spherical caps subjected to cyclic pressure loads. The numerical research showed that the dynamic buckling mechanism is classified three categories concerning the minimum dynamic buckling loads in cyclic pressure loads with different frequency, and in three domains the minimum dynamic buckling loads decline almost linearly in proportion to the static loads. In the first domain the dynamic buckling loads indicate a gentle decrease and high values, and the buckling mechanism shows the sharp increase of the deformations without jump phenomena. In the second domain the buckling loads decline sharply and there are two dynamic buckling mechanisms, types of the jump and no jump phenomena. In the third domain, no capacity for resisting dynamic loads can be expected because of showing the low value of dynamic buckling loads, and the almost all buckling mechanism shows dynamic jump phenomena.
社団法人日本建築学会の論文
1997-10-30