Combined influence of porosity and elastic foundation parameters on the bending behavior of advanced sandwich structures
No Thumbnail Available
Date
2022-12-06
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Elastic bending of imperfect functionally graded sandwich plates (FGSPs) laying on the Winkler-Pasternak
foundation and subjected to sinusoidal loads is analyzed. The analyses have been established using the quasi-3D sinusoidal shear
deformation model. In this theory, the number of unknowns is condensed to only five unknowns using integral-undefined terms
without requiring any correction shear factor. Moreover, the current constituent material properties of the middle layer is
considered homogeneous and isotropic. But those of the top and bottom face sheets of the graded porous sandwich plate (FGSP)
are supposed to vary regularly and continuously in the direction of thickness according to the trigonometric volume fraction’s
model. The corresponding equilibrium equations of FGSPs with simply supported edges are derived via the static version of the
Hamilton’s principle. The differential equations of the system are resolved via Navier’s method for various schemes of FGSPs.
The current study examine the impact of the material index, porosity, side-to-thickness ratio, aspect ratio, and the WinklerPasternak foundation on the displacements, axial and shear stresses of the sandwich structure.