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首页> 外文会议>International Conference on Sandwich Structures;ICSS8 >ANALYSIS OF LAMINATED SANDWICH PLATES BASED ON AN IMPROVED HIGHER ORDER ZIGZAG THEORY
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ANALYSIS OF LAMINATED SANDWICH PLATES BASED ON AN IMPROVED HIGHER ORDER ZIGZAG THEORY

机译：基于改进的高阶之字形理论的夹层板分析

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摘要

In the present study, an improved higher order zigzag theory is proposed and it is applied to study the bending and free vibration response of laminated sandwich plates. The theory satisfies the condition of continuity in transverse shear stresses at all the layer interfaces and transverse shear stress free condition at the top and bottom of the plate. In addition to that it accounts for the transverse flexibility effect of the core. The variation of in-plane displacements through thickness is assumed to be cubic, while transverse displacement varies quadratically only within the core. The core is modelled as a 3-D elastic continuum. An efficient C~0 finite element is proposed for the implementation of the proposed plate theory. The accuracy and range of applicability of the present formulation are established by comparing the present results with 3-D elasticity solutions and other results available in the literature.
机译：在本研究中，提出了一种改进的高阶之字形理论，并将其用于研究层合夹心板的弯曲和自由振动响应。该理论满足了所有层界面处的横向剪应力的连续性条件以及板的顶部和底部的无横向剪应力的条件。除此之外，它还考虑了芯的横向柔韧性效应。平面内位移随厚度的变化被假定为立方，而横向位移仅在岩心内呈二次方变化。核心建模为3D弹性连续体。为实现所提出的板理论，提出了一种有效的C〜0有限元。通过将本发明的结果与3-D弹性溶液和文献中可获得的其他结果进行比较，可以确定本发明制剂的准确性和适用范围。

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