Natural Frequency Characteristics of Stiffened FG Multilayer Graphene-Reinforced Composite Plate with Circular Cutout Resting on Elastic Foundation

• DOI: 10.1142/s021945542450202x
• Publication Date: 2023-11-03T04:22:07Z
• Authors: Mohammad Javad Bayat; Amin Kalhori; Masoud Babaei; Kamran Asemi
• Keywords: Natural frequency; Plate theory; Bending of plates; Composite plate; Aspect ratio (aeronautics); Functionally graded material

In this research, natural frequency response of functionally-graded multilayer graphene-reinforced composite plate with circular cutout reinforced by orthogonal stiffeners is investigated for the first time. The structure surrounded Winkler-type elastic support. composed polymethyl methacrylate (PMMA) as matrix material and graphene platelets (GPLs). same that matrix. Rule mixtures Halpin–Tsai approach are applied to estimate effective properties plate. Third-order shear deformation theory finite element procedure employed obtain matrices structure. Natural frequencies mode shapes stiffened reported different variables such nanofillers dispersion patterns, width height stiffeners, aspect ratio plate, thickness ratio, weight fraction nanofillers, number boundary conditions, foundation stiffness parameter size cutout. obtained results denote addition a set fundamental enhanced up 32.3% just about 10% increase mass.