# Buckling Analysis of CNTRC Curved Sandwich Nanobeams in Thermal Environment  
[PERSON]  
1 Laboratoire d'Etude des Structures et de Mecanique des Materiaux, Departement de Genie Civil, Faculte des Sciences et de la Technologie, Universite Mustapha Stambouli, B.P. 305, Mascara 29000, Algeria; ahmed.daikh@univ-sb.daz. (A.A.D. ); ms.houari@univ-mascara.daz (M.S.A.H.) [PERSON]  
1 Laboratoire d'Etude des Structures et de Mecanique des Materiaux, Departement de Genie Civil, Faculte des Sciences et de la Technologie, Universite Mustapha Stambouli, B.P. 305, Mascara 29000, Algeria; ahmed.daikh@univ-sb.daz. (A.A.D. ); ms.houari@univ-mascara.daz (M.S.A.H.) [PERSON]  
2 Department of Mechanical Engineering, Marvdasht Branch, Islamic Azad University, Marvdasht 15914, Iran; [EMAIL_ADDRESS]  
[PERSON]  
3 Faculty of Engineering, Mechanical Engineering Department, King Abdulaziz University, P.O. Box 80204, Jeddah 21589, Saudi Arabia; [EMAIL_ADDRESS]  
in polymeric matrices. [PERSON] et al. [3] examined the thermo-mechanical properties of different epoxy-based nanocomposites with randomly oriented single-walled (SW) and multi-walled (MW) CNTs. Moreover, [PERSON] [4] investigated the nonlinear bending behavior of FG nanocomposite plates reinforced by SWCNTs subjected to a transverse uniform or sinusoidal load in a thermal environment using two different distribution functions. A nonlocal strain gradient theory was also proposed by [PERSON] et al. [5] to study a wave propagation in macro and nanobeam structures for the first time. [PERSON] and [PERSON] [6] investigated the free vibration and elastic buckling of sandwich beams with a stiff core and functionally graded (FG)-CNTRC face sheets in a Timoshenko beam theoretical framework. Among coupled thermo-mechanical problems, [PERSON] et al. [7] investigated the influence of a thermal loading and shear force on the nonlocal buckling response of nanobeams via higher-order shear deformation Eringen beam theories. Similarly, [PERSON] and [PERSON] [8] investigated the thermo-mechanical vibration of sandwich FG-CNTRC beams within a Timoshenko-based beam approach; [PERSON] and [PERSON] [9] illustrated the influence of a magnetic field on the thermo-mechanical buckling and vibration response of FG-CNTRC nanobeams with a viscoelastic substrate. In line with the previous works, [PERSON] and [PERSON] [10] studied the thermal buckling of FG sandwich higher-order plates with material temperature-dependent properties under a nonlinear temperature rise; [PERSON] and [PERSON] [11] combined a third-order shear deformation approach together with the nonlocal elasticity to study the static deflection of FG nanobeams under a coupled thermo-electro-magneto-mechanical environment. A novel refined shear theory was recently proposed by [PERSON] et al. [12] for the study of a gradation influence on the vibration and buckling behavior of FG beams with a power-law function by means of Fourier series. [PERSON] et al. [13], instead, applied the first order shear deformation and energy principle to study the static and dynamic behavior of FG-CNT-reinforced porous sandwich plates. [PERSON] et al. [14] later performed a thermo-electro-mechanical buckling study of FG-CNTRC sandwich nanobeams based on a nonlocal strain gradient elasticity theory and differential quadrature numerical procedure. More complicated double-curved sandwich panels were accounted by [PERSON] et al. [15], who analyzed the thermal vibration in presence of pre-strained shape memory alloy wires. [PERSON] et al. [16] analyzed the size-dependent static behavior of FG nanobeams, including the thickness stretching effect; whereas a nonlocal trigonometric shear deformation theory and nonlocal quasi-3D theory were proposed in [17; 18], respectively, to treat FG nanobeams.