Buckling of Cylindrical Sandwich Shells with Closed Ends under Uniform External Pressure

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  • 両端が閉じたサンドウィッチ円筒殻の一様外圧による座屈
  • リョウタン ガ トジタ サンドウィッチ エントウカク ノ イチヨウ ガイアツ

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Inthispaperbucklingofcylindricalsandwich shells with closed ends under uniform external pressure is analyzed. External pressure distributed uniformly Over the end closures turns into axial loads on the two facings. The ends of the cylinder are constrained such that they experience no radial or circumferentia ldisplacements and they are free from bending moments.Analysis on this theme was treated by M.E.RAVILLE (FPL 1844-B). He considered, however, only the external pressure over the cylindrical surface.<BR>Buckling theory used here is the classical small deflection theory. Buckling stresses can be obtained from the equation of a complicated sixth order determinant, and were calculated numerically. Computed results for critical buckling loads are expressed for various parameters such as thickness-radius ratio or length-radius ratio, and the buckling characteristic curves are shown by which how the critical load varies with the values of these parameters is revealed.

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