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首页> 外文会议>International Structural Engineering and Construction Conference(ISEC-03); 20050920-23; Shunan(JP) >RS strength of axially loaded sandwich shell subjected to lateral pressure
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RS strength of axially loaded sandwich shell subjected to lateral pressure

机译：承受侧向压力的轴向加载夹心壳的RS强度

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摘要

A reduced stiffness lower bound buckling strength for axially loaded sandwich cylindrical shell is proposed for when the shell is subjected to additional constant external uniform lateral pressure. The same is compared to that of the purely axially loaded sandwich cylindrical shell. In addition, it is compared with the FEM lower bound for verification. The additional constant uniform lateral pressure reduces the classical and reduced stiffness buckling strengths. Its effect on the FEM lower bound of axially loaded sandwich cylindrical shell is almost negligible. However, the relevant initial geometric imperfection reduces. This reduction is caused by the lateral deformation caused by the applied constant uniform lateral pressure. Further, the proposed reduced stiffness lower bound buckling strength avoids the uncertainty of consequences associated with both initial geometric imperfections and external uniform lateral pressure.
机译：对于当轴向承受的夹心圆柱壳承受额外的恒定外部均匀侧向​​压力时，提出了降低刚度的下界屈曲强度。将其与纯轴向加载的夹心圆柱壳的情况进行比较。另外，将其与FEM下限进行比较以进行验证。附加的恒定均匀侧向压力会降低经典强度并降低刚度屈曲强度。它对轴向加载的夹心圆柱壳的FEM下界的影响几乎可以忽略不计。但是，相关的初始几何缺陷会减少。这种减小是由于施加恒定的恒定横向压力而引起的横向变形引起的。此外，所提出的降低的刚度下界屈曲强度避免了与初始几何缺陷和外部均匀横向压力相关的后果的不确定性。

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