Free Vibration and Buckling Analysis of Stiffened Sandwich Plates with Repeated Fold

被引：3

作者：

Pramanik S. ^{[1
]}

Das S. ^{[1
]}

Niyogi A.G. ^{[1
]}

机构：

[1] Department of Civil Engineering, Jadavpur University, Kolkata

来源：

Journal of The Institution of Engineers (India): Series C | 2021年 / 102卷 / 01期

关键词：

Corrugated roof; Finite element; Sandwich material; Stiffened folded plate;

D O I：

10.1007/s40032-020-00627-x

中图分类号：

学科分类号：

摘要：

In this paper, complex-shaped sandwich folded plate structures with and without stiffeners have been analyzed using first-order shear deformation theory. Finite element analysis using eight-noded isoparametric serendipity elements has been used. Regular plate elements have been applied to model the plates and stiffeners. Transformation matrices have been used to form the global stiffness matrix. Effect of different boundary conditions, fiber angles and core thicknesses has been discussed. Different stiffener arrangements have been analyzed to study their effects. Numerical results reveal that the fixed edge of folded plate increases the stiffness prominently. Also, proper positioning of stiffeners can significantly increase the stiffness and hence the natural frequency and the buckling load. © 2020, The Institution of Engineers (India).

引用

页码：87 / 98

页数：11

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