Stress concentration reduction using different functionally graded materials layer around the hole in an infinite panel

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

doi:10.3233/sfc-190232

Cited by 15 publications

(3 citation statements)

References 21 publications

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“…The literature shows that Poisson's ratio has an insignificant effect on stress behavior of inclusion therefore, in the present work, it has been considered as constant for inclusion, plate and FGM layer as (Goyat et al, 2019):…”

Section: Materials Modelingmentioning

confidence: 99%

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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Section: Materials Modelingmentioning

confidence: 99%

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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Section: Introductionmentioning

confidence: 99%

“…However, increasing layer thickness after some value has a less significant effect on SCF. Therefore, the concept of the FGM layer is found efficient for infinite panels (Goyat et al, 2019). Yang et al (2020) extended the idea of FGM layer to reduce the SCF in the plate under out-of-plane bending load condition.…”

Section: Introductionmentioning

confidence: 99%

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

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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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Failure Criteria for Composite Blades with Wavy Edge in Aerospace Applications

Jadhav

2021

Advances in Materials and Mechanical Engineering

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Stress concentration reduction using different functionally graded materials layer around the hole in an infinite panel

Cited by 15 publications

References 21 publications

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

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

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

Failure Criteria for Composite Blades with Wavy Edge in Aerospace Applications

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