## 1 Introduction
[PERSON] and [PERSON] [21] carried out a nonlinear resonance analysis of FG-CNTRC annular sector plates excited by transverse harmonic loads uniformly distributed through the plate area employing VDQM and [PERSON]'s TSDT integrated with von Karman nonlinear strain relations. [PERSON] et al. [22] obtained natural frequencies of laminated thick shear deformable FG-CNTRC annular plates employing discrete singular convolution (DSC) regularized Shannon delta (RSD) and Lagrange delta sequence (LDS) kernels to the motion equations extracted from conical shell relations. [PERSON] et al. [23] presented a general approach to explore free vibration response of FG-CNTRC cylindrical, conical shells and annular plates by applying VDQM on the governing equations established based on FSDT and [PERSON]'s principle. Considering von Karman nonlinearities in the HSDT-based axisymmetric governing equations, [PERSON] et al. [24] studied the vibration response of sandwich annular plates with isotropic core and FG-CNTRC interfaces embedded in elastic substrates. On the basis of FSDT, [PERSON] et al. [25] employed Ritz method to investigate vibration characteristics of FG-CNTRC annular, circular, and sector plates. [PERSON] and [PERSON] [26] employed DSC to analyze free vibration behavior of CNTRC annular and annular sector plate within the framework of FSDT. Geraphene platelets (GPLs) are an alternative to CNTs for enriching the mechanical characteristics of composite structures [27; 28; 29; 30; 31; 32; 33; 34; 35]. Within the framework of theory of elasticity, [PERSON] et al. [36] employed the Mian-Spencer approach and carried out a three-dimensional axisymmetric thermo-mechanical bending analysis of FG-CNTRC annular and circular plates. [PERSON] et al. [37] focused on the vibration response of functionally graded graphene-platelets reinforced composites (FG-GPLRC). [PERSON] and [PERSON] [38] utilized [PERSON] and [PERSON]'s TSDT to carry out a nonlinear asymmetric bending investigation of FG-GPLRC annular plates subjected to bi-harmonic and uniform transverse loadings. Multiscale hybrid composites (MHC) exploit both a nanoscale as well as a macroscale reinforcement. Related articles can be classified into three main categories: Those investigating the manufacturingprocess, those exploring the characteristics of MHCs, and those related to the mechanical behavior of MHC structures. The article published by [PERSON] et al. [39] is among the first attempts to obtain a multiscale composite using chemical vapor deposition. [PERSON] [40] introduced a novel manufacturing process called vacuum-assisted resin transfer molding (VARTM) to synthesize carbon nanotube (CNT)/aramid fiber/epoxy MHCs and reported an improvement in bending characteristics compared to aamid fiber/epoxy composite. [PERSON] et al. [41; 42] designed mechanical tests to prove that CNT/CF/epoxy multiscale composites manufactured by VARTM exhibit higher shear strength and electrical conductivity compared with CF/epoxy composite. [PERSON] et al. [43] used electrophoretic deposition (EPD) to obtain graphene oxide/CF/polyurethane composite in order to achieve higher tensile strength. [PERSON] et al. [44] reviewed some manufacturing methods of MHCs with carbon-based nano-fillers such as high energy sonication [45], resin infusion technique [46], VARTM [47], and EPD technique [48; 49]. Many researchers conducted experimental and theoretical investigations on the properties of MHCs, i.e., electrical anisotropy [50], microwave properties [51], electrical [52] and thermal conductivity [53], and mechanical properties [54; 55] of CNT/CF/matrix composites. Using molecular dynamics, [PERSON] and [PERSON] [56] studied the effect of different types of epoxy on the elasticity modulus of CNT/CF/epoxy composites. [PERSON] et al. [57] improved the thermo-mechanical properties of glass fiber/epoxy composites combined with CNTs. Other studies on mechanical properties of MHCs can be found, for instance in [58; 59; 60; 61; 62] and references therein.