Nonlinear thermo-mechanical response of eccentrically stiffened Sigmoid FGM circular cylindrical shells subjected to compressive and uniform radial loads using the Reddy's third-order shear deformation shell theory

Duc, Nguyen Dinh; Khoa, Nguyen Dinh; Thiem, Hoang Thi

doi:10.1080/15376494.2017.1341581

Cited by 21 publications

(3 citation statements)

References 29 publications

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“…[23][24][25][26][27][28] Several studies also have been done to investigate nonlinear behavior of stiffened FGM panels. [29][30][31][32][33][34][35][36] There are a few studies which have concerned with composite lattice conical shells. 37 Totaro 38 developed a mathematical model to calculate axial, bending and torsional stiffness of the composite lattice conical shells.…”

Section: Introductionmentioning

confidence: 99%

Buckling behavior of grid stiffened composite conical shells subjected to the lateral pressure

Zarei

Rahimi

2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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This paper presents the buckling behavior of the grid stiffened composite conical shell subjected to the lateral pressure. A smeared method is employed to equivalent grid structure into a layer. For this purpose, a typical unit cell is chosen for analyzing forces and moments on it. Therefore equivalent stiffness parameters due to the grid structure are determined. By determining the stiffness parameters of the shell and superimposing with those of the stiffeners, equivalent stiffness of the whole structure is obtained. Governing equations are established based on the Donnell shell theory. The power series method is used to extract the buckling load of the stiffened shell. To validate obtained results, a 3 D finite element model is built using ABAQUS software. The comparison showed that the analytical solution is qualified enough to study the buckling behavior of the grid stiffened composite conical shell. Through this study, the effect of a set of important parameters due to stiffeners like stiffener orientation angle, the number of stiffeners, and due to due to shell like lamination angle and semi-vertex angle are investigated, and finally are presented based on this study results.

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Section: Introductionmentioning

confidence: 99%

Buckling behavior of grid stiffened composite conical shells subjected to the lateral pressure

Zarei

Rahimi

2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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“…[38] Considering imperfection in stiffened cylindrical shells, the nonlinear thermoelastic buckling resistances of such shells made of FG materials placed in an elastic medium were presented in ref. [39]. By developing a nonlinear finite element method, thermoelastic stresses in thin-walled sandwich shells were studied in ref.…”

Section: Introductionmentioning

confidence: 99%

Damped harmonic vibrations of axisymmetric graphene‐enhanced cylinders in thermal environment

Moradi‐Dastjerdi

Behdinan

2021

Polymer Composites

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In this paper, the structural damping behavior of axisymmetric nanocomposite cylinders enhanced with randomly oriented graphene nanosheets has been explored by a mesh-free solution. The static responses of such nanocomposite cylinders under internal pressure and exposed to thermal environment are assumed as the initial condition of harmonic vibrations. Using the shape functions of moving least squares (MLS), an axisymmetric mesh-free solution has been developed to approximate the displacement field of the graphene-enhanced nanocomposite (GEN) cylinders. Along the thickness of these cylinders, different nonlinear functionally graded (FG) patterns are considered for the distribution of graphene nanosheets. The mechanical properties of graphene and polymer are considered to vary with temperature, and the overall properties of nanocomposite are calculated using a modified Halpin-Tsai (HS) technique. The effects of thermal environment, graphene content, graphene dispersion, and cylinder dimension on the structural damped harmonic vibrations of axisymmetric GEN cylinders have been examined. The results indicate that the use of graphene nanosheets and their distribution significantly affect the damped harmonic vibrations of axisymmetric polymeric cylinders such that the increase of graphene content results in damped vibrations with higher frequency and shorter stationary time. In addition, thermal environment reduced the frequency of vibrations, but it has an insignificant impact on the stationary time of vibrations.

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“…Duc et al [29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46][47] investigated buckling, post-buckling of plates, vibrations, static and dynamic response of cylindrical shell panels, curved panels, carbon nanotube (CNT)reinforced panels and piezoelectric circular cylindrical shells with elastic foundations effects analytically.…”

Section: Introductionmentioning

confidence: 99%

Thermomechanically induced post-buckling analysis of functionally graded material plates with circular cut-outs resting on elastic foundations

Kumar

2020

Journal of Thermoplastic Composite Materials

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Post-buckling analysis of functionally graded material (FGM) plates resting on Winkler and Pasternak elastic foundations subjected to thermomechanical loadings with circular cut-outs at centre and random material properties is presented. The material properties of each constituent’s materials, volume fraction index, thermal expansion coefficients, foundation stiffness parameters and thermal conductivities are taken as independent basic random input variables. The basic formulation is based on applying Reddy’s higher order shear deformation theory, which requires C1 continuous element approximation. A modified form C0 continuity is applied in the present investigation. A serum-free expansion medium with mean-centred first-order regular perturbation technique for composite plates is extended for FGM plates to solve the random eigenvalue problem. Typical numerical results are presented to examine the second-order statistics for effect of the volume fractions index, plate length-to-thickness ratios, plate aspect ratios, types of loadings, amplitude ratios, support conditions and various shape and size of holes with random thermomechanical properties. The results obtained by the present solution approach are validated with published papers and the robust method of simulation. It is found that the laminates with round cuts (FGM plates resting on Winkler and Pasternak elastic foundations) have a significant influence on the post-buckling response under Thermomechanical loading conditions. Present investigations are useful for the applications and further research.

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Nonlinear thermo-mechanical response of eccentrically stiffened Sigmoid FGM circular cylindrical shells subjected to compressive and uniform radial loads using the Reddy's third-order shear deformation shell theory

Cited by 21 publications

References 29 publications

Buckling behavior of grid stiffened composite conical shells subjected to the lateral pressure

Buckling behavior of grid stiffened composite conical shells subjected to the lateral pressure

Damped harmonic vibrations of axisymmetric graphene‐enhanced cylinders in thermal environment

Thermomechanically induced post-buckling analysis of functionally graded material plates with circular cut-outs resting on elastic foundations

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