An In-Depth, Three-Dimensional Stress Analysis of Thick Porous Functionally Graded Sandwich Plates

Slimane Merdaci; Youcef Beldjelili; Adda Hadj Mostefa; Mohamed Elamine Dahamni

doi:10.5935/jetia.v12i59.3409

Authors

Slimane Merdaci Civil Engineering and Public Works Department, Faculty of Technology, Djillali Liabes University, Sidi Bel Abbes 22000, Algeria. https://orcid.org/0009-0004-0086-9280 (unauthenticated)
Youcef Beldjelili Civil Engineering and Public Works Department, Faculty of Technology, Djillali Liabes University, Sidi Bel Abbes 22000, Algeria. https://orcid.org/0000-0003-3877-9665 (unauthenticated)
Adda Hadj Mostefa Department of Civil Engineering and Public Works, Faculty of Technology, University of Relizane, Algeria. https://orcid.org/0000-0001-5920-1198 (unauthenticated)
Mohamed Elamine Dahamni Condensed Matter Science Laboratory (LSMC), Oran 1 Ahmed Ben Bella University, Oran 31100, Algeria. https://orcid.org/0000-0001-5920-1198 (unauthenticated)

DOI:

https://doi.org/10.5935/jetia.v12i59.3409

Abstract

This study investigates the stress distribution in porous, functionally graded sandwich plates by combining analytical methods with three-dimensional finite element analysis. A novel higher-order displacement theory incorporating shear and normal effects is utilized. In the absence of a shear correction factor, the transverse shear stresses vanish at the upper and lower surfaces of the plate. The results highlight the influence of thickness on stress distribution and through-thickness displacement, with comparisons between models that include and exclude thickness effects. Finite element simulations are employed to verify the analytical results. The impact of key parameters, such as porosity and plate thickness, is also examined.