Abstract
A sandwich panel is a lightweight structure, economical and having low thermal conductivity. It is made up of three layers in which the middle layer is called core which is bounded with thin layers at top and bottom called faces. Generally, the core has relatively low-density which makes it lightweight. The buckling load analysis of sandwich panel having isotropic core and orthotropic faces is studied for different support conditions using the FE based software ABAQUS. The FE model is validated with suitable published results. Then it is used to find critical buckling load of sandwich panel with isotropic core and orthotropic faces. Many new results have been presented for different thickness, end conditions, aspect ratio, etc.
Highlights
Sandwich panels (Fig. 1 and Fig. 2) subjected to uniaxial buckling are used in numerous engineering applications like structural, marine, aerospace, and others
Convergence and Comparison Study: The accuracy of the present finite element (FE) model developed using ABAQUS has been validated with Kheirikhah et al [26] [Table 1]
Effect of end condition: In this subsection, the effect of end conditions on the non-dimensional buckling load has been studied on two types of sandwich panels (0/90/C/90/0 and 0/C/0)
Summary
Sandwich panels (Fig. 1 and Fig. 2) subjected to uniaxial buckling are used in numerous engineering applications like structural, marine, aerospace, and others. Construction of the building is a big challenge to civil engineers and the government especially in developing countries throughout the world. Pokharel and Mahendran [4] studied local buckling effects of sandwich panel with Polystyrene foam core and steel faces subjected to bending and axial compression. Indentation of aluminium foam core sandwich panel was investigated using finite element model developed in ABAQUS by Xu et al [8].
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