Stress analysis in a functionally graded disc under mechanical loads and a steady state temperature distribution

Çallıoğlu, Hasan

doi:10.1007/s12046-011-0005-9

Cited by 16 publications

(11 citation statements)

References 14 publications

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“…In another study by Callioglu; It is concluded that the displacement of a disc on the outer surface is greater than the displacement on the inner surface. Similar results emerged in this study; It has been observed that the radial displacement on the inner surface of the disc is less than the displacement on the outer surface of the disc [36]. In a different study by Ondurucu and Kayıran; radial, tangential stresses and displacements in the radial direction were investigated numerically for the bimaterial disc exposed to linear decreasing temperature.…”

Section: Disc Nosupporting

confidence: 86%

Numerical Analysis of Displacement of Circular Discs Based On Boron Carbide (B4C) -Silicon Carbide (SİC) and Silicon Nitride (Si3N4) materials

Kayiran¹

2021

El-Cezeri Fen Ve Mühendislik Dergisi

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In this study, the radial behavior of disks are made of different materials and increasing from the inner surface to the outer surface under temperature distribution was analyzed analytically, assuming that the modulus of elasticity does not change with temperature. The resulting calculations were supported by the ANSYS program. Boron carbide (B 4 C) is often used in the space industry in our country. The model of the first disc is the material of boron carbide (B 4 C), and the model of the materials of the second and third discs are silicon carbide (SiC) and silicon nitride (Si 3 N 4 ), respectively. Discs mounted on any machine part may be subject to displacement at different temperatures. Discs can show different properties according to material and different temperature. At the end of the literature research, it was observed that experimental and numerical thermal stress analyses were performed and radial and tangential stresses were calculated at different temperatures in the disks. There have been insufficient studies to examine the radial displacement behavior of the discs under different temperature effects. In different studies, metal materials such as stainless steel and aluminum were mainly investigated. The difference of this study compared to previous studies are that the size of the modelled disk diameter and the specified temperature range are close to each other. Because small diameter disks are generally preferred in the defense industry and other unmanned aerial vehicles, as well as in the space technology, where temperature change is the main factor. Therefore, boron carbide (B 4 C) and silicon carbide (SiC), which are important materials in the aerospace industry today, were calculated the displacement values of silicon nitride (Si 3 N 4 ) at temperatures of 40 ° C -50 ° C -60 ° C -70 ° C -80 ° C -90 ° C and shared with the literature. At the end of this numerical analysis, it was determined that the displacement value at 40 ° C on the inner surface of the boron carbide (B 4 C) material was 100.00 % higher than silicon carbide (SiC) and 157.14% higher than silicon nitride (Si 3 N 4 ). At the end of this study, it was concluded that it is possible to use these disc materials with high hardness and good strength.

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Section: Disc Nosupporting

confidence: 86%

Numerical Analysis of Displacement of Circular Discs Based On Boron Carbide (B4C) -Silicon Carbide (SİC) and Silicon Nitride (Si3N4) materials

Kayiran¹

2021

El-Cezeri Fen Ve Mühendislik Dergisi

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“…Kordkheili and Naghdabadi (2007) presented a solution for thermo-elasticity in hollow and solid rotating functionally graded disks. Exact solutions for stresses in functionally graded annular discs rotating at a constant angular velocity under temperature loading (Bayat et al, 2009;Çallıoğlu, 2011;Çallıoğlu et al, 2011;You et al, 2007) are also found in literature. Bektaş and Akça, (2012) conducted analytical and numerical analysis of FG disc using power law functions.…”

Section: Introductionmentioning

confidence: 88%

Thermo-Mechanical Analysis for an Axisymmetric Functionally Graded Rotating Disc under Linear and Quadratic Thermal Loading

Mehta¹,

Sahni²

2020

Int J Math, Eng, Manag Sci

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The study presents thermo-mechanical analysis of functionally graded (FG) rotating disc whose material properties, namely, Young’s modulus, density and coefficient of thermal expansion in radial direction are tailored from inner to outer radius using power law form. The disc is considered to be under the influence of internal pressure, centrifugal body force and thermal loading of the form linear as well as quadratic. Response of FG disc under linear and quadratic temperature profile subjected to internal pressure as well as centrifugal body force is analysed. An exact solution for stress in radial and tangential directions, under mechanical and thermal loading is presented. Numerical solutions for stresses under internal pressure with uniform thermal loading are obtained using finite element method and its comparison with analytical results is presented graphically. Results for radial displacement, radial stress and tangential stress are depicted graphically and their interpretation has been discussed.

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“…Kim and Paulino [16] evaluated the mixed-mode fracture parameters in FGMs using FEM. The analysis of FGM coatings was performed in many works by computational methods, usually FEM, or analytical tools [10,[17][18][19][20]. Some other approaches to simplify the mechanics of FGMs were developed like using equivalent eigenstrain and distributed dislocation technique to symbolize the cracks by Afsar and Song [21].…”

Section: Fracture In Fgmsmentioning

confidence: 99%

Numerical simulation of thermal fracture in functionally graded materials using element-free Galerkin method

Garg

Pant

2017

Sādhanā

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In the present work, element-free Galerkin method (EFGM) has been extended and implemented to simulate thermal fracture in functionally graded materials. The thermo-elastic fracture problem is decoupled into two separate parts. Initially, the temperature distribution over the domain is obtained by solving the heat transfer problem. The temperature field so obtained is then employed as input for the mechanical problem to determine the displacement and stress fields. The crack surfaces are modelled as non-insulated boundaries; hence the temperature field remains undisturbed by the presence of crack. A modified conservative M-integral technique has been used in order to extract the stress intensity factors for the simulated problems. The present analysis shows that the results obtained by EFGM are in good agreement with those available in the literature.

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Stress analysis in a functionally graded disc under mechanical loads and a steady state temperature distribution

Cited by 16 publications

References 14 publications

Numerical Analysis of Displacement of Circular Discs Based On Boron Carbide (B4C) -Silicon Carbide (SİC) and Silicon Nitride (Si3N4) materials

Numerical Analysis of Displacement of Circular Discs Based On Boron Carbide (B4C) -Silicon Carbide (SİC) and Silicon Nitride (Si3N4) materials

Thermo-Mechanical Analysis for an Axisymmetric Functionally Graded Rotating Disc under Linear and Quadratic Thermal Loading

Numerical simulation of thermal fracture in functionally graded materials using element-free Galerkin method

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