On the Strength of an Elliptical Shell Vessel : Part 1, Influence of the Shell Length on the Stress and deformation distributions

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  • だ円形胴板の強さについて : その1,応力およびたわみに及ぼす胴板長さの影響
  • ダエンケイ ドウバン ノ ツヨサ ニ ツイテ 1

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In order to obtain the practical design data for a pressure vessel having an elliptical shellplate, the authors examined the effects of the shellplate length on the stress and deformation distributions using several model vessels. As the results the following matters have been made clear : (1) The stresses in an elliptical shell are, far from those of cylindrical one, affected by its length to much extent.(2) The stresses in the cross section at longitudinal vessel center, being most sensitive to the effect of the length, are extremely larger than those in the shellend-part for a long-shell vessel. But in the case of a short-shell vessel the latter sometimes become larger than the former.(3) In a vessel having nearly-cylindrical shell, the supporting effect due to the end plate connection is much more influencial comparing with one having a shallow-elliptical shell.

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