1505 動的有限要素解析による長柱の動的座屈荷重の評価(OS15.材料・構造体の衝撃応答(2))

概要

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In this research, the buckling behavior of long columns subjected to dynamic loads was investigated both experimentally and numerically, and an effective buckling criterion for the dynamic load with the limited time duration was described in terms of the slenderness ratios. In order to validate the proposed criterion, the dynamic FEM code 'MSC. Dytran' was used to simulate the typical experimental results, and the validity and the accuracy of the proposed model were examined. Furthermore, the dynamic buckling loads at various impact speeds were systematically investigated. From the results, it was found that the ratio of the dynamic load to the static load was expressed as a square function of the slenderness ratio of the long columns.
社団法人日本機械学会の論文
2007-11-25