NONLINEAR BUCKLING

The aim of this work isto present a semi-analytical approach that combines the third-order shear deformation theory with von Kármán's geometric nonlinearity for fully simply supported composite plates reinforced by aligned CNTs resting on an elastic foundation.

18p viambani 18-06-2024 1 1   Download

The influence of porosity distribution pattern on the nonlinear buckling and postbuckling behavior of porous cylindrical shells subjected to axial compression are investigated by the analytical approach in this paper. The material properties are assumed to vary through the thickness of the shell. There are three porosity distribution pattern types are considered.

10p dathienlang1012 03-05-2024 1 0   Download

This paper attempts to improve the load-carrying capacity of FG-CNTRC cylindrical shells by proposing the design options of the spiral FG-CNTRC stiffener system. By using the anisotropic beam theory and the transformation technique, a homogenization technique for the spiral FG-CNTRC stiffeners is developed and the nonlinear buckling behavior of spirally stiffened cylindrical shells is analysed.

10p dathienlang1012 03-05-2024 1 0   Download

The nonlinear buckling behaviors of the functionally graded graphene platelet reinforced composite (FG-GPLRC) doubly curved shallow shells under external pressure in the thermal environment are introduced and investigated in this paper. The Donnell shell theory and the strain-displacement relationship of von Karman are used. At the bottom surface of FG-GPLRC doubly curve shallow shells, the FG-GPLRC stiffener system in the transverse, longitudinal, or/and oblique directions is installed to increase the bearing capacity of the shallow shells.

10p dathienlang1012 03-05-2024 0 0   Download

A semi-analytical approach of nonlinear dynamic buckling of functionally graded carbon nanotubes reinforced composite (FG-CNTRC) cylindrical shells stiffened by the ring or stringer FG-CNTRC stiffeners by using the Donnell shell theory with the geometrical nonlinearities in von Kármán sense is reported in this paper. The improved smeared stiffener technique is applied for FG-CNTRC stiffeners.

10p dathienlang1012 03-05-2024 4 0   Download

A semi-analytical approach of nonlinear buckling of spiral-corrugated functionally graded graphene-reinforced metal matrix composite (FG-GRMMC) laminated cylindrical shells by using the Donnell shell theory with the geometrical nonlinearities in von Kármán sense is reported in this paper.

10p dathienlang1012 03-05-2024 2 0   Download

An analytical approach of nonlinear buckling and postbuckling analysis of core-corrugated functionally graded carbon nanotubes reinforced composite (FG- CNTRC) cylindrical panels under axial compression is presented in the present study. A homogenization technique is applied for the corrugated core with thermal effects. The nonlinear stability equation system of panels is formulated by using the Donnell thin shell theory with the von Kármán geometrical nonlinearities.

9p dathienlang1012 03-05-2024 2 0   Download

The main aim of this paper is to investigate the nonlinear buckling and postbuckling of eccentrically stiffened sandwich functionally graded porous (FGP) cylindrical shells surrounded by elastic foundations in thermal environments and under torsional load by analytical approach in terms of the displacement components.

13p dianmotminh02 03-05-2024 4 1   Download

This paper presents and analyzes the nonlinear buckling responses of cylindrical and sinusoid Functionally graded graphene platelet reinforced composite (FG-GPLRC) panels under axial compressive load. The higherorder shear deformation theory is applied to establish the governing equations of structures.

10p visharma 20-10-2023 7 4   Download

An analytical approach for nonlinear buckling of functionally graded graphene platelet reinforced composite toroidal shell segments is presented in this paper. The Ritz energy procedure is executed, and radial pressure–deflection expression is constituted to obtain the postbuckling strength and critical buckling pressure of the shells.

7p visharma 20-10-2023 8 4   Download

In this paper, the nonlinear buckling behavior of functionally graded material (FGM) plates subjected to an axial compression is analytically investigated. Assuming that the plates are stiffened by FGM rectangular, I-and T-stiffeners.

8p visharma 20-10-2023 10 3   Download

The nonlinear buckling behavior of functionally graded graphene platelet reinforced composite (FG-GPLRC) cylindrical shells reinforced by ring, stringer and/or spiral FG-GPLRC stiffeners under torsional loads is studied by an analytical approach.

10p visharma 20-10-2023 4 3   Download

The nonlinear buckling analysis of functionally graded carbon nanotubereinforced composite (FG-CNTRC) plates subjected to axial compression load is analytically examined in this paper. Assuming that the FG-CNTRC plates are stiffened by an oblique FG-CNTRC stiffener system.

14p viwolverine 11-07-2023 5 3   Download

The circular plates and shallow spherical caps are assumed to be subjected to uniformly distributed thermal loads. By applying the Galerkin method, the relations between thermal load-deflection are achieved to determine the postbuckling behavior and critical buckling loads of the considered structures.

13p viwolverine 11-07-2023 3 2   Download

This paper deals with the nonlinear buckling and post-buckling of sandwich cylindrical panels with non-uniform porous core and functionally graded face sheets. The imperfect sandwich cylindrical panels are subjected to axial loading on elastic foundation.

12p viwolverine 11-07-2023 5 2   Download

The bracing systems have been considered a reliable solution for the seismic-resistant design of buildings, which has been widely applied in recent years. This article aims to investigate the performance of braced frame structures in the seismic-resistant design. Typical buckling restrained braced frames, represented by an approximate bilinear behaviour, are selected to perform nonlinear time-history analyses.

15p vimclaren 20-10-2022 2 2   Download

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.

24p vimelindagates 18-07-2022 11 3   Download

In this paper we develop and study an archetypal model to explore the nonlinear dynamic interactions between galloping at an incipient sub-critical Hopf bifurcation of a structure with shelllike buckling behaviour that is gravity-loaded to approach a sub-critical pitch-fork bifurcation.

8p guernsey 28-12-2021 7 0   Download

This paper presents a comprehensive computational investigation into the nonlinear elastic buckling response of perfect and imperfect thin cantilever cylinders under global transverse shear. A complete range of practical lengths was investigated, from short cylinders which fail by shear buckling to very long ones which exhibit local meridional compression buckling with significant prior cross-section ovalisation.

11p guernsey 28-12-2021 9 0   Download

This paper is concerned with the nonlinear dynamic buckling of sandwich functionally graded circular cylinder shells filled with fluid. Governing equations are derived using the classical shell theory and the geometrical nonlinearity in von Karman–Donnell sense is taken into account. Solutions of the problem are established by using Galerkin’s method and Runge–Kutta method. Effects of thermal environment, geometric parameters, volume fraction index k and fluid on dynamic critical loads of shells are investigated.

14p nguaconbaynhay11 07-04-2021 14 1   Download