1 Thermal Stability of Functionally Graded Graphene Platelet Reinforced Composites 1 The thermal stability of functionally graded graphene platelet-reinforced composites (FG-GPLRCs) is influenced by the distribution and weight fraction of graphene platelets (GPLs). Different grading patterns, such as FG-X and FG-O, affect the critical buckling temperature, with FG-X providing the highest thermal resistance. The Halpin-Tsai model is commonly used to estimate elasticity modulus, while other properties are evaluated using the rule of mixtures. Studies indicate that a laminated structure with a limited number of layers can effectively mimic a continuously graded composite, making FG-GPLRCs a promising choice for high-temperature applications. 1 2 Yaser Kiani Faculty of Engineering, Shahrekord University, Shahrekord. Nanotechnology Research Institute, ShahrekordUniversity, Shahrekord. Shahrekord University Iran y.kiani@sku.ac.ir Thermal Buckling Graphene Platelet Laminated Composite Critical Buckling Temperature Article.pdf [1] K.S. Novoselov, A.K. Geim, S.V. Morozov, D. Jiang, Y. Zhang , S.V. Dubonos, I.V. Grigorieva , A. Firsov, Electric filed effect in atomically thin carbon films, Science 306 (2004) 666-669.## [2] C.D. Reddy, S. Rajendran, K.M. Liew, Equilibrium configuration and continuum elastic properties of finite sized graphene, Nanotechnology 17 (2006) 864-870. ##[3] F. Scarpa, S. Adhikari, A.S. Phani, Effective elastic mechanical properties of single layer graphene sheets, Nanotechnology 20 (2009) 065709. ## [4] E. Cadelano, P.L. Palla, S. Giordano, L. Colombo, Nonlinear elasticity of monolayer graphene, Physical Review Letters 102 (2009) 235502. ##[5] Z. Ni, H. Bu, M. Zou, H. Yi, K. Bi, Y. Chen, Anisotropic mechanical properties of graphene sheets from molecular dynamics, Physica B: Condensed Matter 405 (2010) 1301-1306.## [6] Y.Y. Zhang, C.M. Wang, Y. Cheng, Y. Xiang, Mechanical properties of bilayer graphene sheets coupled by sp3 bonding, Carbon 49 (2011) 4511-4517. ##[7] J. Yang, H. Wu, S. Kitipornchai, Buckling and postbuckling of functionally graded multilayer graphene platelet-reinforced composite beams, Composite Structures 161 (2017) 111-118.##[8] A. Haghani, Y. Kiani, Closed Form Expressions for Nonlinear Analysis of FG-GPLRC Beam Under Thermal Loading: Thermal Postbuckling and Nonlinear Bending, International Journal of Structural Stability and Dynamics 24(2) (2024) 2450016. ##[9] Y Kiani, M Mirzaei, Isogeometric thermal postbuckling of FG-GPLRC laminated plates, Steel and Composite Structures 32(6) (2019) 821-832.## [10] Y. Kiani, NURBS-based thermal buckling analysis of graphene platelet reinforced composite laminated skew plates, Journal of Thermal Stresses 43(1) (2020) 91-108.##[11] M Javani, Y Kiani, MR Eslami, Thermal buckling of FG graphene platelet reinforced composite annular sector plates, Thin-walled Structures, 148 (2020) 106589.