On the reduction of stress concentration factor in an infinite panel using different radial functionally graded materials

Goyat, Vikas; Verma, Suresh; Garg, Ramesh Kumar

doi:10.1504/ijmpt.2018.10012973

Cited by 2 publications

(4 citation statements)

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“…The varying nature of Young's modulus within elements was modeled by the standard FEM interpolation Equation (4) using nodal shape function N i and nodal Young's modulus E i (Kim and Paulino, 2002). PFGMA is a power-law based FGM graded in a radial direction of the hole in the whole panel (Goyat et al, 2018). In this case, Ti is at the hole boundary and TiB at the maximum radial distance from the hole boundary.…”

Section: Extended Finite Element Methods (Xfem)mentioning

confidence: 99%

“…PFGMA is a power-law based FGM graded in a radial direction of the hole in the whole panel (Goyat et al. , 2018).…”

Section: Fgm Materials Modelsmentioning

confidence: 99%

“…The n = 0 represents the case of homogenous material and n = 1 denotes the case of linear variation. For more details about power-law FGM and variation of Young's modulus with n, one can refer Goyat et al. (2018), Sburlati (2013) and Yang and Gao (2016).…”

Section: Fgm Materials Modelsmentioning

confidence: 99%

“…It is observed that the suitable range of power-law coefficient is 0-1. Where value 0 represents homogeneous material, value 1 represents a linearly graded FGM and value between 0 and 1 shows the smooth variation in material properties (Goyat et al, 2018). Sburlati (2013) introduced the concept of the FGM layer.…”

Section: Introductionmentioning

confidence: 99%

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On stress concentration analysis of inverse distance weighted function based finite FGM panel with circular hole under biaxial loading

Goyat

Enab²,

Ghangas³

et al. 2022

MMMS

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PurposeInverse distance weighted (IDW) functions are utilized to make models of heterogenous materials such as functionally graded materials (FGM) in computer aided design (CAD). However, the use of IDW function based FGM for stress concentration reduction is scarcely available in the literature. The present work aims to analyze and reduce the stress concentration around a circular hole in IDW function-based finite FGM panel under biaxial loading.Design/methodology/approachExtended finite element method (XFEM) model was prepared using MATLAB to investigate the effect of geometrical and material parameters on the stress concentration factor (SCF). The obtained results of IDW FGM are compared with homogeneous material as well as two different FGMs based on the power-law function.FindingsIt was observed that the IDW function based FGM is simple in material modeling, conformal with all domain boundaries and shows lower stress concentration in comparison with the homogeneous material case. While comparing IDW FGM with power-law based FGMs, it was observed that the IDW FGM has least values of stress concentration for low d/W (diameter of the hole to panel width ratio) and is comparable with power-law based FGMs for high d/W.Originality/valueIt can be stated that IDW FGM is highly suitable for stress concentration reduction in finite panels with d/W = 0.5, which can further be intended for obtaining optimum hole and panel designs.

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Section: Extended Finite Element Methods (Xfem)mentioning

confidence: 99%

“…PFGMA is a power-law based FGM graded in a radial direction of the hole in the whole panel (Goyat et al. , 2018).…”

Section: Fgm Materials Modelsmentioning

confidence: 99%

Section: Fgm Materials Modelsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

On stress concentration analysis of inverse distance weighted function based finite FGM panel with circular hole under biaxial loading

Goyat

Enab²,

Ghangas³

et al. 2022

MMMS

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Modeling and Stress Analysis of Rounded Rectangular Inclusion Enclosed by FGM Layer

Rani

Verma

Ghangas

2023

Int. j. math. eng. manag. sci.

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The aim of the present work is to model and analyze stresses around rounded rectangular inclusion enclosed with functionally graded material (FGM) layer. The inclusion has been considered in an infinite plate which is subjected to far-field tensile stress. The extended finite element method (XFEM) has been used to model the inclusion with non-conformal mesh. The level set functions of circular and rectangular shapes have been used to trace the inclusion boundary with mesh. The FGM has been considered as continuous varying mixture of inclusion and plate materials with power law function along normal direction to the inclusion interface. Young's modulus has been assumed to vary within FGM layer, whereas Poisson's ratio is kept constant. The stress distribution and stress concentration factor (SCF) have been analyzed for different geometrical and FGM parameters. It has been observed that XFEM with level set method efficiently model the difficult shape inclusions such as rounded rectangle. Applying the FGM layer smoothens the stress distribution around rounded rectangular inclusion and significantly reduces SCF. The position of maximum stress shifted from the inclusion interface toward the FGM layer interface. The least SCF has been noted with power law index n = 0.5 and FGM layer thickness t = r.

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On the reduction of stress concentration factor in an infinite panel using different radial functionally graded materials

Cited by 2 publications

References 0 publications

On stress concentration analysis of inverse distance weighted function based finite FGM panel with circular hole under biaxial loading

On stress concentration analysis of inverse distance weighted function based finite FGM panel with circular hole under biaxial loading

Modeling and Stress Analysis of Rounded Rectangular Inclusion Enclosed by FGM Layer

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