防撓板の圧壊強度の研究 : その2

概要

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The present paper investigates the ultimate compressive strength of a simply-supported wide panel reinforced longitudinally by multiple stiffeners. It was clarified in the previous paper that in the case of one stiffener, the ultimate behaviors depend upon the equivalent flexural rigidity re of the stiffener and they are classified in the three modes by the specific values of γ_e : γ_l and γ_2. The same tendencies are observied in the case of multiply stiffened panels ; weak stiffeners (γ_e <γ_1) can not prevent panels from overall deformation, while strong stiffeners (γ_e > γ2) are effective to be panel breakers and only local deformations are dominent even at the ultimate strength. If γ_1 <γ_e <γ_2, overall deformation interacts with 10cal buckling mode. It is also shown that the ultimate strength. largely depends upon the in-plane constraint conditions. The simple approximation formulas are proposed for estimation of the ultimate strength.
社団法人日本船舶海洋工学会の論文