Ring으로 補剛된 圓筒形 Shell에 대한 流體 精水壓의 follower force effect를 고려한 挫屈解析

Abstract

Ring으르 補剛된 圓筒形 Shell의 挫屈解析을 線形 Bifurcation 挫屈理論을 利用한 有限要素法에 依하여 수행하였다.

Shell의 바깥쪽으로 作用하는 流體 靜水壓은 Follower Force로 취급하였으며, 좌굴 Mode로서는 General Buckiing긴 Interframe Bucking을 고려하여 그들 각각에 대한 좌굴壓力과 Mode Shape을 決定하였다.

한편, Ring補剛材를 Shall의 안쪽에 붙이는 경우와 바깥 쪽에 불이는 경우에 대한 좌굴강도를 비교하였다.

A finite-element formulation is presented for the stability analysis of ring-stiffened circular cylindrical shells using linear bifurcation buckling theory

External hydrostatic pressure is treated as a follower force.

Critical pressure and mode shape in both general buckling mode and interframe buckling mode have been obtained using this formulation.

Critical pressures for cylinder with internal and external stiffener are compared.

A finite-element formulation is presented for the stability analysis of ring-stiffened circular cylindrical shells using linear bifurcation buckling theory

External hydrostatic pressure is treated as a follower force.

Critical pressure and mode shape in both general buckling mode and interframe buckling mode have been obtained using this formulation.

Critical pressures for cylinder with internal and external stiffener are compared.