얇은 圓筒部材의 압괴에 關한 硏究 = A Study on the Crushing of Thin-Walled Cylindrical Members

다국어 초록 (Multilingual Abstract)

The crushing conduct of Aluminum cylindrical members showed axisymmetic mode in case of thin non-axisymmetic mode in thick board. Mixed collapse mode also appeared. When crushing, half wave length reacted more sensitively to the change of thickness rather than that of diameter. Comparing the maximum bucking load of square section tube and single-hatted section tube, both have the same section area, I came to know that square section tube appeared to be fittest for the structural vehicle members. And Aluminum cylindrical structural members and single-hatted section tube were following in order. As a result, Aluminum cylindrical members appeared to be fit for the structural vehicle members. And in Nodal number, it showed the diverging point between axisymmetric mode and non-axiymmeric mode. When the critical value of thickness/ diameter ratio is between 0.047 it showed to be fittest in the relation of the critical value of thickness/diameter ratio the maximum buckling load and the amount of absorbing energy.