不整量を有する防撓平板の弾塑性解析

概要

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Great parts of ship construction are consisted of reinforced plates with stiffners. In application of welding to fabricate them, the shrinkage of welded portion may usually produce distortion and residual stresses in each element of plate structure. Such initial imperfections may be decisive factors for structural strength or ultimate strength of stiffened plates subjected to compression. Several significant studies were already completed on ultimate strength of thin plates with stiffeners. This paper presents the relation between ultimate strength and initial imperfections of stiffened plates subjected to in-plane compression which are consisted of comparatively thick plate as used for ship structure. In order to investigate the collapse mechanism of them, the deformation, the extended state of yielded zone and the stress distribution in each structural element are calculated by finite strip method.
社団法人日本船舶海洋工学会の論文
1977-08-15