Stress of a Spirally Corrugated Shell Subjected to Torsional Deformation

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概要

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• This paper deals with a calculation of stress distribution in a spirally corrugated tube subjected to torsional deformation. The formulas for analyzing the stress on the basis of the general bending theory reduce to a system of ordinary differential equations, which is integrated numerically. To obtain the torsional stiffness of the tube, the twisting moment applied to the tube is also caluclated.Results of calculation make clear the properties of the tube as follows. The largest component of stress is the shearing membrane stress. It takes, just like the maximum shearing stress, the largest value on the spiral of minimum radius.An increase in the depth of corrugation makes smaller the largest values of the shearing membrane stress and the maximum shearing stress. The former is nearly independent of the wall thickness, but the latter becomes larger as the thickness becomes larger. The torsional stiffness decreases as the depth of corrugation increases.

• 一般社団法人日本機械学会の論文

著者

• Yoshida Akira

  Customer Equipment Development Section The Electrical Communication Laboratory Nippon Telegraph And

関連論文

• Stress of a Spirally Corrugated Shell Subjected to Torsional Deformation

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