Buckling analysis of porous FGM sandwich plates under various types nonuniform edge compression based on higher order shear deformation theory

Adhikari, Balakrishna; Dash, P. R.; Singh, B.N.

doi:10.1016/j.compstruct.2020.112597

Cited by 56 publications

(8 citation statements)

References 48 publications

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“…where  is the gradient symbol; and (1) ij  and (2) ij  are the nonlocal stress and the higher-order nonlocal stress tensors, respectively.…”

Section: Theory and Formulationsmentioning

confidence: 99%

“…Singh and Harsha [1] investigated the dynamic characteristics of a new sigmoid law based sandwich Functionally Graded Materials (FGM) ________ plate plates resting of Pasternak elastic foundation in the thermal environment based on stress-function Galerkin method. Adhikari et al [2] proposed a higher order shear deformation theory to study the effect of porosity type defect and analyze the consequences of porosity on the buckling characteristic of various types of FGM sandwich combinations. Tomar and Talha [3] used Reddy's higher order shear deformation theory to investigate the influence of material uncertainties on vibration and bending behavior of skewed sandwich FGM plates.…”

Section: Introductionmentioning

confidence: 99%

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Dynamic Response of Sandwich Thick Plates with FG Face Sheets and Porous Core in Thermal Environments using Nonlocal Strain Gradient Theory Approach

Manh¹,

2022

MaP

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Based on nonlocal strain gradient theory approach, we have analyzed the nonlinear dynamic response and vibration of sandwich thick plates with functionally graded (FG) face sheets and FG porous core subjected to mechanical, thermal and blast loads on elastic foundations. Three types of porosity, including symmetric porosity distribution, non-symmetric porosity distribution, uniform porosity distribution have been considered of sandwich plate. The system of dynamic governing equations of motion is obtained by utilizing Hamilton’s principle and solved by Bubnov-Galerkin method for a case of simply supported sandwich plate. Numerical results are presented and verified with other studies. The influence of nonlocal and strain gradient parameters, materials and porosity volume fraction, geometrical characteristics and parameters of elastic foundations on fundamental frequencies and dynamic response of the sandwich plates are elucidated.

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“…where  is the gradient symbol; and (1) ij  and (2) ij  are the nonlocal stress and the higher-order nonlocal stress tensors, respectively.…”

Section: Theory and Formulationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dynamic Response of Sandwich Thick Plates with FG Face Sheets and Porous Core in Thermal Environments using Nonlocal Strain Gradient Theory Approach

Manh¹,

2022

MaP

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“…On both top and bottom surfaces of the face sheet, extra adhesion (Epoxy) is used to bond it to the FG core, as shown in Figure 2. Table 1 summarises the mechanical properties of the FG core and face sheet (Arndt & Lechner, 2014;Balakrishna et al, 2020).…”

Section: Design and Preparation Of The Fg Test Specimensmentioning

confidence: 99%

Optimisation Design of Functionally Graded Sandwich Plate with Porous Metal Core for Buckling Characterisations

Njim¹,

Bakhy²,

Al-Waily³

2021

JST

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This study presents the optimum operating parameters and geometrical of the functionally graded sandwich plate with porous materials (FGPMs), widely used in aircraft structures subjected to uniaxial critical buckling load. This process is developed design optimisation parameters by employing Multi-Objective Genetic Algorithm (MOGA) techniques. According to a simple power law, the assumption of varying material characteristics of the porous FG core through the plate thickness is considered. In addition, to evaluate the linear buckling behaviour, a new mathematical model based on the classical plate theory (CPT) is proposed. The impact of different design parameters on the performance of the functionally graded structure is studied. Then, finite element modelling is used to validate the results of the analytical solution. Finally, the optimisation method includes both design of experiments (DOE) and response surface methodology (RSM), which are used to find out the critical buckling load of the FG sandwich plate with porous metal core bonded with two homogenous skins using suitable adhesion. The mandatory constraints are the maximum critical buckling and maximum total deformation. In this work, 100 design points are considered to determine the total deformation load multiplier, maximum deformation, and equivalent stress of sandwich plate with graded materials and even distribution of porosities. The buckling analyses of the FGPM sandwich plate subjected to the compression loading are presented by conducting an experimental program. The results show good convergence between suggested analytical and FEA simulation with an average error percentage of no more than 2 %. References ISSN 0128-7702 e-ISSN 2231-8534 Article ID JST-2794-2021 Download Full Article PDF Share this article FacebookTwitterLinkedInMore Make a Submission Related Articles Latest Women in Leadership: Insights from Female Principals of Rural Secondary Schools in Vhembe District of South Africa Malaysian State Sports Schools Football Coaching Process Key Themes Development: Constant Comparison Method in Data Analysi

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“…Talebi Amanieh et al 29 studied the vibrations response of porous FGM sandwich plate with two types of porosity distributions. Adhikari et al 30 examined buckling response of FGM sandwich plate under porous medium. Zghal and Dammak 31 examined the buckling response of porous FGM structures under various in-plane loading via the finite element method.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation of the thermomechanical buckling analysis of bidirectional porous functionally graded plate using collocation meshfree method

Kumar

Lal

Singh

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part L:

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This paper presents some new and valuable numerical results for the thermo-mechanical buckling analysis of bidirectional porous functionally graded plates with uniform and non-uniform temperature rise. The strong form formulation is implemented for thermo-mechanical buckling in the framework of higher-order shear deformation theory. The material property with four schemes of porosity distribution of bidirectional porous functionally graded plate is taken by a modified power law. The governing differential equations are accomplished utilizing the principle of virtual works. The multi-quadric radial basis function is implemented for discretizing the governing differential equations. The multi-quadric radial basis function Euclidean norm is modified to analyze the square as well as rectangular plates without changing the shape parameters. Convergence and validation studies are performed to show the accuracy, effectiveness, and consistency of the present meshfree collocation method. The influence of different porosity distributions, span to thickness ratios, aspect ratios, grading index, temperature raise, boundary conditions, and porosity index on thermomechanical buckling load is evaluated. Some novel results for the bidirectional porous functionally graded plate are also enumerated that can be utilized as benchmark results for future reference.

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Buckling analysis of porous FGM sandwich plates under various types nonuniform edge compression based on higher order shear deformation theory

Cited by 56 publications

References 48 publications

Dynamic Response of Sandwich Thick Plates with FG Face Sheets and Porous Core in Thermal Environments using Nonlocal Strain Gradient Theory Approach

Dynamic Response of Sandwich Thick Plates with FG Face Sheets and Porous Core in Thermal Environments using Nonlocal Strain Gradient Theory Approach

Optimisation Design of Functionally Graded Sandwich Plate with Porous Metal Core for Buckling Characterisations

Numerical simulation of the thermomechanical buckling analysis of bidirectional porous functionally graded plate using collocation meshfree method

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