NAVIER SOLUTION FOR DEFLECTION AND STRESSES ANALYSIS OF FGM SANDWICH PLATE RESTING ON PASTERNAK ELASTIC FOUNDATION

Authors

  • Thanh Huan Duong Vietnam National University of Agriculture, Hanoi, Vietnam
  • Vu Quan Le Vietnam National University of Agriculture, Hanoi, Vietnam
  • Thanh Hai Nguyen Vietnam National University of Agriculture, Hanoi, Vietnam
  • Cong Binh Dao Institute of Techniques for Special Engineering, Le Quy Don Technical University, Hanoi, Vietnam
  • Viet Chinh Mai Institute of Techniques for Special Engineering, Le Quy Don Technical University, Hanoi, Vietnam
  • Van Truong Nguyen Institute of Techniques for Special Engineering, Le Quy Don Technical University, Hanoi, Vietnam

DOI:

https://doi.org/10.56651/lqdtu.jst.v7.n01.832.sce

Keywords:

Navier's solution, deflection, stresses, sandwich plate, functionally graded materials (FGM), elastic foundation

Abstract

In this article, the first-order shear deformation theory (FSDT) and Navier’s solution are used to establish analytical solutions for analyzing the deflection and stresses of FGM sandwich plate structures resting on a Pasternak elastic foundation. The top and bottom layers consist of functionally graded materials (P-FGM) that vary according to the exponential law along the thickness direction, while the core layer is composed of a porous material. The boundary condition of the plate is simply supported on all the edges, and the plate is subjected to a sinusoidal distributed load perpendicular to the mid-surface. The reliability of the model is validated through comparison with findings published in reputable journals. The effects of material parameters, geometric dimensions, foundation coefficients, and face-core-face thickness ratios on deflection and stress components of rectangular FGM sandwich plates are investigated in detail in parametric studies.

Downloads

Published

2024-07-04

Issue

Vol. 7 No. 01 (2024)

Section

Articles