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Bending response of web-core sandwich plates

机译:腹板芯夹心板的弯曲响应

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摘要

A theory for the bending response of web-core sandwich plates is presented in this paper. Response is evaluated by transforming an originally discrete core into an equivalent homogenous continuum giving a sandwich plate, which follows, thick-face-plate kinematics. The approach exploits analytical formulations for the determination of the equivalent stiffness properties of the plate. The finite element method is used to determine the internal forces and displacements of the plate for given load and boundary conditions. Thereafter, the periodic structure is reconsidered and the internal forces are used in the stress predictions based on analytical formulations. The validation of the present approach is carried out with 3D FE analyses. The case studies consider various combinations of load and boundary conditions. A good agreement is obtained between the proposed theory and 3D FE analyses.
机译:本文提出了腹板芯夹心板弯曲响应的理论。通过将最初离散的磁芯转换成等效的均匀连续体,得到一个夹心板,然后进行厚板运动学分析,来评估响应。该方法利用分析公式确定板的等效刚度特性。在给定的载荷和边界条件下,有限元方法用于确定板的内力和位移。此后,重新考虑周期性结构,并根据分析公式将内力用于应力预测。本方法的验证是通过3D FE分析进行的。案例研究考虑了载荷和边界条件的各种组合。所提出的理论与3D FE分析之间取得了很好的一致性。

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