Dynamic Response of a Grid-Stiffened Composite Cylindrical Shell Reinforced with Carbon Nanotubes to a Radial Impulse Load

Davar, A.; Azarafza, Reza; Fayez, M. S.; Fallahi, S.; Jam, Jafar Eskandari

doi:10.1007/s11029-021-09944-3

Cited by 6 publications

(8 citation statements)

References 42 publications

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“…In [16], on the basis of the theory of shear deformation of the first order, taking into consideration the influence of shear deformation and the moment of inertia (the Timoshenko type theory), the equilibrium equations of a composite cylindrical shell with stiffeners reinforced with carbon nanotubes (CNTs) are derived. To determine the equivalent stiffness of a composite cylindrical shell supported by a mesh, the blurred stiffness method is used.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…The following conclusions can be drawn from the above literature review [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24]:…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…-most papers [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24] contain solutions only to direct problems that are solved by numerical methods, often by special software systems based on FEM, for example, LS-DYNA;…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…-along with a large number of works [8][9][10][11][12][13][14][15][16][17][18][19] tackling layered, heterogeneous, or reinforced shells, composite cylindrical shells are considered extremely rarely, although they are used in practice;…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

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Identification of the pulse axisymmetric load acting on a composite cylindrical shell, inhomogeneous in length, made of different materials

Voropay

GNATENKO

Yehorov

et al. 2022

EEJET

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The problem of identifying the load acting on the elements of structures belongs to the class of inverse problems of the mechanics of a deformable solid, which are often incorrect. Solving such problems is associated with the instability of the calculation results, which requires the development of special methods for their research. This predetermines the relevance of this study. The object of the study is a single-pass cylindrical shell consisting of two rigidly fastened butt-fastened sections made of different materials. Each of the shells is assumed to be elastic isotropic, having a cross-section of medium thickness. The equations of axisymmetric deformation of shells are used within the framework of Timoshenko hypotheses. An approach to solving direct and inverse problems for such discretely heterogeneous objects is proposed, which implies the conditional separation of a discretely heterogeneous cylindrical shell along the length, followed by the addition of functions of fictitious loads. The main analytical relationships for building a system of integral Volterra equations are given, for which an analytic-numerical solution is derived. The final ratios have been obtained, which make it possible to calculate the kinematic and force parameters of the study object in the process of non-stationary deformation. The inverse problem of identifying arbitrary loads acting on a shell that is heterogeneous in length is solved in a general form. An algorithm for the restoration of pulse loads has been developed, which is robust to errors in the initial data (about 5 %). The material related to solving direct and inverse problems for shells that are discretely heterogeneous in length can significantly advance the methodology for identifying pulse loads acting on structural elements

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Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…The following conclusions can be drawn from the above literature review [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24]:…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Section: Literature Review and Problem Statementmentioning

confidence: 99%

See 2 more Smart Citations

Identification of the pulse axisymmetric load acting on a composite cylindrical shell, inhomogeneous in length, made of different materials

Voropay

GNATENKO

Yehorov

et al. 2022

EEJET

View full text Add to dashboard Cite

show abstract

“…Maji et al, [16] studied the thermo-elastic vibration of graphene reinforced composite stiffened plate with general boundary conditions using FEM based on first-order shear deformation theory. Davar et al, [17][18] presented the dynamic response and free vibration of a gridstiffened composite cylindrical shell reinforced by CNTs subjected to the radial impulse load. Bo et al [19] investigated the nonlinear dynamic investigation of the perovskite solar cell with GPLR-FGP stiffeners under blast impact based on the von-Kármán geometric nonlinearity and the first-order shear deformation theory.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear Static Stability of Stiffened Nanocomposite Plate s Subjected Various Types of Loads

Thành

2022

MaP

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This work deals with the nonlinear buckling and post-buckling of stiffened nanocomposite plates reinforced functionally graded carbon nanotubes (FG CNTRC) resting on elastic foundation in thermal environment. Obtained results showed that the properties of the nanocomposited plates embedded with single-walled carbon nanotubes are dependent on temperature and altered according to linear functions of the thickness. The governing equations are derived by the third-order shear deformation plate theory taking into account von Kármàn geometrical nonlinearity and solved by both the Airy’s stress function and Galerkin method. In numerical results, the influences of various types of distribution and volume fractions of carbon nanotubes, geometrical parameters, elastic foundations on the nonlinear buckling and post-buckling behaviour of stiffened FG-CNTC plates subjected mechanical, thermal loading and both are demonstrated. Keywords: Stiffened FG CNTRC plates; Buckling and Post buckling analysis; Third-order shear deformation theory; Thermal environment; Galerkin method This work deals with the nonlinear buckling and post-buckling of stiffened nanocomposite plates reinforced functionally graded carbon nanotubes (FG CNTRC) resting on elastic foundation in thermal environment. Obtained results showed that the properties of the nanocomposited plates embedded with single-walled carbon nanotubes are dependent on temperature and altered according to linear functions of the thickness. The governing equations are derived by the third-order shear deformation plate theory taking into account von Kármàn geometrical nonlinearity and solved by both the Airy’s stress function and Galerkin method. In numerical results, the influences of various types of distribution and volume fractions of carbon nanotubes, geometrical parameters, elastic foundations on the nonlinear buckling and post-buckling behaviour of stiffened FG-CNTC plates subjected mechanical, thermal loading and both are demonstrated.

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Dynamics of Shell with Structural Features

Skosarenko

2024

Advanced Structured Materials

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Dynamic Response of a Grid-Stiffened Composite Cylindrical Shell Reinforced with Carbon Nanotubes to a Radial Impulse Load

Cited by 6 publications

References 42 publications

Identification of the pulse axisymmetric load acting on a composite cylindrical shell, inhomogeneous in length, made of different materials

Identification of the pulse axisymmetric load acting on a composite cylindrical shell, inhomogeneous in length, made of different materials

Nonlinear Static Stability of Stiffened Nanocomposite Plate s Subjected Various Types of Loads

Dynamics of Shell with Structural Features

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