title   
  

Structural analysis of sandwich plates with variable stiffness composite skins and functionally graded cores using refined zig-zag theory

Zoghipour, Pouya and Kefal, Adnan and Yıldız, Mehmet (2024) Structural analysis of sandwich plates with variable stiffness composite skins and functionally graded cores using refined zig-zag theory. Mechanics of Advanced Materials and Structures, 31 (30). pp. 12425-12449. ISSN 1537-6494 (Print) 1537-6532 (Online)

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Abstract

This work investigates the static flexural behavior of new hybrid Sandwich Plates (SP) with Functionally Graded (FG) cores and curvilinear fiber-reinforced Variable Stiffness (VS) skins. For simplicity and computational efficiency, the existing refined zig-zag theory formulation for curvilinear fiber-reinforced composites with three-node finite element (RZT3C) is enhanced to incorporate the thickness-wise material variation of the FG core. Benchmark problems of FG-SP under various boundary conditions are solved, with results compared against 3D Ansys and reference solutions. Contrary to costlier methods, the presented model accurately captures the complex flexural mechanics, paving the way for designing advanced structures.
Item Type: Article
Uncontrolled Keywords: curvilinear fiber reinforcement; Functionally graded; refined zig-zag theory; sandwich structures; variable stiffness
Divisions: Faculty of Engineering and Natural Sciences
Integrated Manufacturing Technologies Research and Application Center
Depositing User: Adnan Kefal
Date Deposited: 10 Sep 2025 15:48
Last Modified: 10 Sep 2025 15:48
URI: https://research.sabanciuniv.edu/id/eprint/52283

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