Frequency study of functionally graded multilayer graphene platelet-reinforced polymer cylindrical panels
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Tarih
2021
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Polish Acad Sciences Inst Fundamental Technological Research
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
IN THIS STUDY, NONLINEAR FUNDAMENTAL NATURAL FREQUENCIES of Functionally Graded (FG) multilayer Graphene Platelet-reinforced Polymer Composite (GPL-RPC) curved cylindrical panels are studied. It is considered that the Graphene Platelet (GPL) nanofillers are distributed in the matrix either uniformly or non uniformly along the thickness direction. Four GPL distribution patterns namely, UD, FG-O, FG-X, and FG-A are considered. The effective material properties of GPL-RPC layers are obtained via the modified Halpin-Tsai micromechanics model and the rule of the mixture. A nonlinear structural model is utilized based on the virtual work principle. Green's nonlinear kinematic strain relations are used to account for the geometric nonlinearities and the First-order Shear Deformation Theory (FSDT) is adopted to generalize the formulation for the case of moderately thick cylindrical panels including transverse shear deformations. The Generalized Differential Quadrature (GDQ) method of solution is employed to solve the nonlinear governing equations of motion. The present study aims to study the effect of GPL weight fraction for the proposed distribution patterns on the nonlinear fundamental frequency of functionally graded GPL-RPC cylindrical panels with different boundary conditions.
Açıklama
Anahtar Kelimeler
graphene platelet-reinforced polymer, cylindrical panels, nonlinear fre-quency
Kaynak
Archives of Mechanics
WoS Q Değeri
Q4
Scopus Q Değeri
Q3
Cilt
73
Sayı
5-6
