引張荷重を受ける中央き裂板の弾塑性座屈

概要

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The local buckling characteristics of centrally cracked rectangular plates subjected to a uniaxial tension are analyzed by the finite element method, taking into consideration the effect of plastic deformation developing near the crack tips. There is remarkable agreement between experimental and calculated results. The results obtained in this investigation indicate that the effect of elastic-plastic deformation is predominant on reductions in the tensile buckling loads of cracked plates. It is shown that the buckling loads of either plates with a short crack or thick cracked plates tend to be so much smaller than values predicted by the elastic buckling analyses. Finally, a empirical relation based on the conception of the equivalent elastic-crack-length is proposed, for estimating the elastic-plastic buckling loads of the center cracked plates.
一般社団法人日本機械学会の論文
1986-06-25