P014 Analysis for Secondary Buckling Behavior of Functionally Graded Thin Strips Subjected to Biaxial Compression

Semi-analytical finite strip method (FSM) for analyzing the buckling behavior of some functionally graded plates is presented in this paper. The plates are assumed to be under three types of mechanical loadings, namely; uniaxial compression, biaxial compression, and biaxial compression and tension. The material properties are assumed to vary in the thickness direction according to the power-law variation in terms of volume fractions of the constituents. Thus, the material properties are estimated from the both Voigt rule of mixtures (VRM) and Mori-Tanaka homogenization method (MTM). Numerical results for a variety of functionally graded plates with different aspect ratio are given and compared.

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Buckling Behavior of FG-CNT Reinforced Composite Conical Shells Subjected to a Combined Loading

Nanomaterials ◽

10.3390/nano10030419 ◽

2020 ◽

Vol 10 (3) ◽

pp. 419 ◽

Cited By ~ 3

Author(s):

Abdullah H. Sofiyev ◽

Francesco Tornabene ◽

Rossana Dimitri ◽

Nuri Kuruoglu

Keyword(s):

Volume Fraction ◽

Shear Deformation Theory ◽

Structural Response ◽

Systematic Investigation ◽

Functionally Graded ◽

Combined Loading ◽

Proportional Loading ◽

Conical Shells ◽

Reinforced Composite ◽

Buckling Behavior

The buckling behavior of functionally graded carbon nanotube reinforced composite conical shells (FG-CNTRC-CSs) is here investigated by means of the first order shear deformation theory (FSDT), under a combined axial/lateral or axial/hydrostatic loading condition. Two types of CNTRC-CSs are considered herein, namely, a uniform distribution or a functionally graded (FG) distribution of reinforcement, with a linear variation of the mechanical properties throughout the thickness. The basic equations of the problem are here derived and solved in a closed form, using the Galerkin procedure, to determine the critical combined loading for the selected structure. First, we check for the reliability of the proposed formulation and the accuracy of results with respect to the available literature. It follows a systematic investigation aimed at checking the sensitivity of the structural response to the geometry, the proportional loading parameter, the type of distribution, and volume fraction of CNTs.

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Thermal post-buckling behavior of functionally graded plates with nonlinear temperature distribution

Advances in Engineering Materials, Structures and Systems: Innovations, Mechanics and Applications ◽

10.1201/9780429426506-160 ◽

2019 ◽

pp. 918-922

Author(s):

W. Xia ◽

H.T. Yang ◽

J.M. Wu ◽

S.P. Shen

Keyword(s):

Temperature Distribution ◽

Functionally Graded ◽

Functionally Graded Plates ◽

Buckling Behavior ◽

Post Buckling ◽

Nonlinear Temperature

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Three-Dimensional Buckling Analysis of Functionally Graded Saturated Porous Rectangular Plates under Combined Loading Conditions

Applied Sciences ◽

10.3390/app112110434 ◽

2021 ◽

Vol 11 (21) ◽

pp. 10434

Author(s):

Faraz Kiarasi ◽

Masoud Babaei ◽

Kamran Asemi ◽

Rossana Dimitri ◽

Francesco Tornabene

Keyword(s):

Three Dimensional ◽

Functionally Graded ◽

Constitutive Law ◽

Combined Loading ◽

Rectangular Plates ◽

Loading Conditions ◽

Classical Elasticity ◽

Novel Approach ◽

Buckling Behavior ◽

Generalized Differential

The present work studies the buckling behavior of functionally graded (FG) porous rectangular plates subjected to different loading conditions. Three different porosity distributions are assumed throughout the thickness, namely, a nonlinear symmetric, a nonlinear asymmetric and a uniform distribution. A novel approach is proposed here based on a combination of the generalized differential quadrature (GDQ) method and finite elements (FEs), labeled here as the FE-GDQ method, while assuming a Biot’s constitutive law in lieu of the classical elasticity relations. A parametric study is performed systematically to study the sensitivity of the buckling response of porous structures, to different input parameters, such as the aspect ratio, porosity and Skempton coefficients, along with different boundary conditions (BCs) and porosity distributions, with promising and useful conclusions for design purposes of many engineering structural porous members.

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