Effect of Thermal Gradient on Steady State Creep in a Rotating Disc of Variable Thickness

Garg, Manish; Salaria, B. S.; Gupta, V. K.

doi:10.1016/j.proeng.2013.03.292

Cited by 16 publications

(5 citation statements)

References 6 publications

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“…Thus, creep deformation at different temperature distributions facilitates stress distribution. A lot of researchers ( [1], [2], [3], [4]) have explored steady state creep behaviour of isotropic rotating disc because of its utility in dynamic components.…”

Section: Introductionmentioning

confidence: 99%

Modeling Creep on Account of Residual Stress of Thermally Graded Rotating Disc

Gupta¹,

Bose²,

Rattan³

et al. 2022

ECS Trans.

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Rotating discs are an essential structural component in machinery, electronic components, and space structures. Different temperature distributions cause creep deformation in the disc by facilitating the stress distribution. In present framework, Hoffman’s yield criterion is used to describe the yielding of disc material in order to count for residual stress. Disc is subjected to linear and parabolic thermal gradations. Creep rates are evaluated for linear and non-linear reinforcements of the disc. It is seen from the study that residual stress has a crucial role to play in stress and strain rate distribution and finally in the design of the rotating disc.

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Section: Introductionmentioning

confidence: 99%

Modeling Creep on Account of Residual Stress of Thermally Graded Rotating Disc

Gupta¹,

Bose²,

Rattan³

et al. 2022

ECS Trans.

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“…Nie and Batra [13] studied axisymmetric stresses in a rotating disk made of a rubber-like material that was modeled as isotropic, linear thermoelastic, and incompressible. In the presence of linear thermal gradient, Garg et al [14] analyzed the steady state creep in a rotating disk having linearly varying thickness and made of composite containing silicon carbide particles (SiC) in a matrix of pure aluminium. Çetin et.…”

Section: Introductionmentioning

confidence: 99%

Exact Axisymmetric Thermal Analysis of Functionally Graded Disks with Continuously Hyperbolically Varying Thickness

Yıldırım

2020

International Journal of Engineering Technologies IJET

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An exact thermal analysis of radially functionally graded (FG) disks with continuously varying thickness is performed by steady-state 1-D Fourier heat conduction equation at specific surface temperatures. By employing a simple-power material grading pattern together with the convergent/divergent hyperbolic disk profiles, the differential equation is obtained in the form of Euler-Cauchy type. Analytical solution of the differential equation gives the temperature field and heat flux distributions in the radial direction in a closed form. A numerical study is conducted to visualize both the temperature and heat flux variations with respect to the disk profile parameter for hyperbolic disks made of SUS-304 /ZrO2 (Stainless steel/Zirconium oxide) metalceramic pairs. Those exact expressions are also used to study parametrically the effects of both the inhomogeneity and profile parameters on the temperature field of the disks made of hypothetic FG metal-ceramic pairs. It is revealed that heat conduction behavior of such disks is strictly affected from the variation of both inhomogeneity and disk profile parameters.

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“…Thermal-related analyses of uniform disks made of anisotropic materials [11][12][13][14][15][16][17][18][19] and functionally graded materials [20][21][22][23][24][25][26][27][28] are other investigation themes. Unfortunately, the number of studies on the thermal/thermal related analysis of variable thickness disks made of either functionally graded (FG) materials [29][30][31][32][33][34][35][36][37][38][39][40][41][42] or traditional materials [43][44][45][46] are not enough. In those studies, a variable-thickness disk is generally considered as a combination of multilayered uniform disks [29, 30-32, 34, 36, 40].…”

Section: Introductionmentioning

confidence: 99%

“…By using hyper-geometric differential equation in terms of radial displacement, Vivio and Vullo [43] and Vullo and Vivio [44] introduced an analytical procedure for evaluation of elastic stresses and strains in rotating conical disks and in non-linear variable thickness rotating disks made of an isotropic and homogeneous material, either solid or annular, subjected to thermal loads. In the presence of the linear thermal gradient, Garg et al [45] analyzed the steady state creep in a rotating disk having linearly varying thickness and made of composite containing silicon carbide particles (SiC) in a matrix of pure aluminium. Çetin et al [46] studied analytically an elastic stress analysis of annular isotropic and homogeneous bi-material hyperbolic disks subjected to the mechanical and thermomechanical loads.…”

Section: Introductionmentioning

confidence: 99%

Closed-Form Formulas for Hyperbolically Tapered Rotating Disks Made of Traditional Materials under Combined Thermal and Mechanical Loads

Yıldırım

2018

International Journal of Engineering and Applied Sciences

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Using the true temperature distribution along the radial coordinate, closed-form formulas are offered for readers to study the thermo-mechanical behavior of variable thickness disks having both convergent and divergent hyperbolic thickness profiles made of conventional materials. Internal and external pressures, centrifugal forces and thermal loads due to the differences in prescribed surface temperatures are all considered with three boundary conditions: free-free (a circular annulus), fixed-free (a disk mounted on a rotating shaft at the inner surface), and fixed-fixed (a disk mounted on a rotating shaft at the inner surface and cased at the outer surface) boundary conditions. A parametric study is also conducted in almost real working environment in which the outer surface of the disk has considerably higher temperature rather than the inner surface. The thermomechanical linear elastic response of a hyperbolic mounted rotating disk subjected to the external pressure induced by blades is originally handled by those proposed formulas.

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Effect of Thermal Gradient on Steady State Creep in a Rotating Disc of Variable Thickness

Cited by 16 publications

References 6 publications

Modeling Creep on Account of Residual Stress of Thermally Graded Rotating Disc

Modeling Creep on Account of Residual Stress of Thermally Graded Rotating Disc

Exact Axisymmetric Thermal Analysis of Functionally Graded Disks with Continuously Hyperbolically Varying Thickness

Closed-Form Formulas for Hyperbolically Tapered Rotating Disks Made of Traditional Materials under Combined Thermal and Mechanical Loads

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