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Buckling Of Laminated Sandwich Plates Using An Efficient Plate Model

机译:夹层板屈曲的有效板模型

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摘要

Buckling of laminated sandwich plates is studied using an efficient finite element plate model recently developed by the authors. The plate model is based on a refined higher order shear deformation theory, where the transverse shear stresses are continuous at the layer interfaces with stress free conditions at plate top and bottom. It is interesting to note that the plate model having all these refined features requires unknowns at the reference plane only. However, this theory requires C~1 continuity of the transverse displacement, which is difficult to satisfy arbitrarily in any existing finite element. To deal with this, a new triangular element developed by the authors is used in the present paper.
机译:作者最近开发的一种有效的有限元板模型研究了夹层板的屈曲。板模型基于改进的高阶剪切变形理论,其中横向剪切应力在层界面处连续,且板顶部和底部无应力。有趣的是,具有所有这些改进特征的平板模型仅需要参考平面上的未知数。但是,该理论要求横向位移的C〜1连续性,在任何现有的有限元中都很难任意满足。为了解决这个问题,本文使用了由作者开发的新的三角形元素。

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