2017 # Thermal Buckling of Nanocomposite Stiffened Cylindrical Shells Reinforced by Functionally Graded Wavy Carbon Nanotubes with Temperature-Dependent Properties

**Abstract:** Abstract:We study the thermal buckling behavior of cylindrical shells reinforced with Functionally Graded (FG) wavy Carbon NanoTubes (CNTs), stiffened by stringers and rings, and subjected to a thermal loading. The equilibrium equations of the problem are built according to the Third-order Shear Deformation Theory (TSDT), whereas the stiffeners are modeled as Euler Bernoulli beams. Different types of FG distributions of wavy CNTs along the radial direction of the cylinder are herein considered, and temperature…

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“…Properties of the FGM media are obtained according to the simple rule of mixtures, same as Equation . Here $T={T}_{0}+\mathrm{\Delta}T$, and $\mathrm{\Delta}T$ is the temperature rise from reference temperature T 0 at room temperature (300K).…”

confidence: 99%

“…Properties of the FGM media are obtained according to the simple rule of mixtures, same as Equation . Here $T={T}_{0}+\mathrm{\Delta}T$, and $\mathrm{\Delta}T$ is the temperature rise from reference temperature T 0 at room temperature (300K).…”

confidence: 99%

“…In this study, except for Poisson's ratio which is assumed to be constant, the other temperature-dependent functionally graded material properties are assumed to be nonlinear functions of temperature and may be expressed by the following function [35,36] ( ) = 0 ( . [37][38][39][40][41][42][43][44][45][46][47][48][49][50] Here = 0 + Δ , and Δ is the temperature rise from reference temperature 0 at room temperature (300K). Also, ( = 0, ±1, 2, 3) are temperature-dependent coefficients of the FG material properties given by Table. 1.…”

confidence: 99%

“…To date, many analytical and numerical approaches have been proposed in literature to handle simple and coupled vibration problems of cylindrical shell structures, including thermo-elastic, piezoelectric, and thermo-piezoelectric multi-field problems (see refs. [13][14][15][16][17][18][19][20][21][22][23][24][25][26][27], among others). As far as FGMs are concerned, many recent studies about the free vibration and buckling response of conventional and bi-directional FG cylindrical shells have been recently performed in literature [28][29][30][31][32][33].…”

confidence: 99%

“…A large variety of size-dependent theories of elasticity have been applied recently in literature to study the mechanics of nanostructures, including Eringen's nonlocal models [28][29][30][31], modified couple stress theories [32][33][34][35][36], and nonlocal strain gradient laws [37,38]. Many further coupled nonlinear problems involving composite nanostructures can be found in previous studies [39][40][41][42][43][44][45][46][47][48][49].…”

confidence: 99%