Reduction of stress concentration for a rounded rectangular hole by using a functionally graded material layer

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

doi:10.1007/s00707-017-1907-3

Cited by 11 publications

(2 citation statements)

References 22 publications

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“…Sharma [20] exerted the complex variable approach to provide a general solution for calculating the stresses surrounding a non-circular hole in a laminated composite under arbitrary biaxial loading with different lay-ups. Goyat et al [21] investigated the influence of using functionally graded material (FGM) layer to reduce the maximum values of stress in a plate with a quasi-rectangular hole subject to mechanical loading. Young's modulus and layer thickness as the main parameters were studied.…”

Section: Literature Reviewmentioning

confidence: 99%

Mutual Influence of Geometric Parameters and Mechanical Properties on Thermal Stresses in Composite Laminated Plates with Rectangular Holes

et al. 2021

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In this research, the mutual influence of the mechanical properties and geometric parameters on thermal stress distribution in symmetric composite plates with a quasi-rectangular hole subjected to uniform heat flux is examined analytically using the complex variable technique. The analytical solution is obtained based on the thermo-elastic theory and the Lekhnitskii’s method. Furthermore, by employing a suitable mapping function, the solution of symmetric laminates containing a circular hole is extended to the quasi-rectangular hole. The effect of important parameters including the stacking sequence of laminates, the angular position, the bluntness, and the aspect ratio of the hole and the flux angle in the stacking sequence of [45/−45]s for composite materials are examined in relation to the thermal stress distribution. The thermal insulated state and Neumann boundary conditions at the hole edge are taken into account. It is found out that the hole rotation angles and heat flux angle play key roles in obtaining the optimum thermal stress distribution around the hole. The present analytical method can well investigate the interaction of effective parameters on symmetric multilayer composites under heat flux.

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Section: Literature Reviewmentioning

confidence: 99%

Mutual Influence of Geometric Parameters and Mechanical Properties on Thermal Stresses in Composite Laminated Plates with Rectangular Holes

et al. 2021

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“…Therefore, it has been of great concern to reduce the stress concentration near holes during the structure design and safety maintenance in engineering. Recent research [8][9][10][11] indicates that the stress concentration around the holes can be effectively reduced by introducing a reinforcing ring made by functionally graded material (FGM).…”

Section: Introductionmentioning

confidence: 99%

Out-of-Plane Bending of Functionally Graded Thin Plates with a Circular Hole

et al. 2020

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The out-of-plane bending problems of functionally graded thin plates with a circular hole are studied for two-dimensional deformations. The thin plates have arbitrary variations of elastic properties along the radial direction. The general solutions of the stresses and moments are presented for the plates subjected to remote bending moments based on the theory of complex variable functions. Two different cases—a whole functionally graded plate with a circular hole and a functionally graded ring reinforced in a homogeneous perforated plate—are considered by numerical examples. The influence of parameters like Young’s modulus and Poisson’s ratio, function types of these elastic properties, and width of the reinforcing ring on the moments around the hole is presented. It is shown that the moment concentration, caused by the geometric discontinuity of the hole in the traditional homogeneous plate, can be well relieved or even eliminated by careful selection of the above parameters. The results for some special cases are compared with previous literatures and are found in good agreement.

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On Study of Stress Intensity Factors for Different FGM Plates Having Inclined Edge Crack Using Extended Finite Element Method

Goyat

Verma

Garg

2020

Lecture Notes in Mechanical Engineering

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Reduction of stress concentration for a rounded rectangular hole by using a functionally graded material layer

Cited by 11 publications

References 22 publications

Mutual Influence of Geometric Parameters and Mechanical Properties on Thermal Stresses in Composite Laminated Plates with Rectangular Holes

Mutual Influence of Geometric Parameters and Mechanical Properties on Thermal Stresses in Composite Laminated Plates with Rectangular Holes

Out-of-Plane Bending of Functionally Graded Thin Plates with a Circular Hole

On Study of Stress Intensity Factors for Different FGM Plates Having Inclined Edge Crack Using Extended Finite Element Method

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