Dynamic analysis of functionally graded rotating thick truncated cone made of saturated porous materials

Babaei, Masoud; Asemi, Kamran; Kiarasi, Faraz

doi:10.1016/j.tws.2021.107852

Cited by 34 publications

(11 citation statements)

References 49 publications

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“…In which K u , K refer to the bulk modulus in undrained and drained conditions respectively, and C P and C S stand for the fluid and solid compressibility in pores. Thus, the Skempton coefficient defines the effect of fluid compressibility on the elastic modulus and compressibility of the whole porous material [42].…”

Section: Poroelastic Modeling Of Platesmentioning

confidence: 99%

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

Kiarasi¹,

Babaei²,

Asemi

et al. 2021

Applied Sciences

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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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Section: Poroelastic Modeling Of Platesmentioning

confidence: 99%

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

Kiarasi¹,

Babaei²,

Asemi

et al. 2021

Applied Sciences

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“…Madenci and Ozkili [ 28 ] explored the influence of porosity on free vibration analysis of FG beams with different boundary conditions using different analytical and numerical approaches. Babaei et al [ 29 ] performed the dynamic analysis of FG-saturated porous rotating thick truncated cones using the graded finite elements and Newmark method. Dat et al [ 30 ] numerically investigated the influence of CNTs, porosity, and thermo-mechanical loading on the vibration and dynamic response of the sandwich FG-CNTRC composite plates based on the higher-order shear deformation theory.…”

Section: Introductionmentioning

confidence: 99%

Optimal Tailoring of CNT Distribution in Functionally Graded Porous CNTRC Beams

Cho

Kim

2023

Polymers

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This paper is concerned with the multi-objective optimization of thickness-wise CNT distribution in functionally graded porous CNT-reinforced composite (FG-porous CNTRC) beams. The mechanical behaviors of FG-porous CNTRC structures are strongly influenced by the thickness-wise distributions of CNTs and porosity. Nevertheless, several linear functions were simply adopted to represent the thickness-wise CNT distribution without considering the porosity distribution, so these assumed linear primitive CNT distribution patterns are not sufficient to respond to arbitrary loading and boundary conditions. In this context, this study presents the multi-objective optimization of thickness-wise CNT distribution in FG-CNTRC porous beams to simultaneously minimize the peak effective stress and the peak deflection. The multi-objective function is defined by the larger value between two normalized quantities and the design variable vector is composed of the layer-wise CNT volume fractions. The constrained multi-objective optimization problem is formulated by making use of the exterior penalty-function method and the aspiration-level adjustment. The proposed optimization method is demonstrated through the numerical experiments, and the optimization solutions are investigated with respect to the porosity distribution and the combination of aspiration levels for two single-objective functions. It is found from the numerical results that the optimum CNT distribution is significantly affected by the porosity distribution. Furthermore, the proposed method can be successfully used to seek an optimum CNT distribution within FG-porous CNTRC structures which simultaneously enhances the multi-objective functions.

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“…They have focused on the mechanical behavior in different shapes and dimensions, such as shells with circular cross-sections, 3,4 squareness 5,6 and also conical shells with a variety of materials, such as aluminum, steel, composites, and foams. [7][8][9] These investigations resulted in the development of efficient numerical and experimental tools for analyzing the mechanical behavior of the structures with different boundary conditions and loadings (static and dynamic).…”

Section: Introductionmentioning

confidence: 99%

Collapse analysis of Al 6061 alloy conical shells with circular cutouts under axial loading: experiment and simulation

Hasanzadeh

Mohtarami

Ebadati

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part L:

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The current research is conducted to investigate the experimental and numerical study of crushing behavior and buckling modes of thin-walled truncated conical shells with or without cutouts and discontinuities under axial loading. In this regard, Instron 8802 servohydraulic machine is used to perform the experiments. Additionally, the buckling modes, derived from the axial collapse phenomenon, are simulated with Finite Element (FE) software. The force-displacement diagrams extracted numerically are compared with experimental results. Various factors, including maximum force, energy absorption, specific energy, and failure modes of each case, are also discussed. The results indicate that the increasing cutout cause a decrease in the maximum force and energy absorption. Moreover, with cutouts reduction, the failure modes of the samples changed from the diamond asymmetric mode and single-lobe mode to multi-lobes, and with removing cutouts, the failure mode is observed to be completely symmetric.

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Dynamic analysis of functionally graded rotating thick truncated cone made of saturated porous materials

Cited by 34 publications

References 49 publications

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

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

Optimal Tailoring of CNT Distribution in Functionally Graded Porous CNTRC Beams

Collapse analysis of Al 6061 alloy conical shells with circular cutouts under axial loading: experiment and simulation

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