Axisymmetrical problem of thermoelasticity for halfspace with gradient coating

Kulchytsky-Zhyhailo, Roman; Bajkowski, Adam S.

doi:10.1016/j.ijmecsci.2015.12.002

Cited by 16 publications

(8 citation statements)

References 34 publications

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“…This approach is known as the multi-layered model of functionally graded materials. It has been shown that the results obtained for the FGM layer, divided into a sufficient number of the sublayers, are in good agreement with the data found using the corresponding exact solutions [ 26 ]. The same approach has been used to simulate FGM with sinusoidal and cosinusoidal power and exponential distribution of properties for a cylinder subjected to non-uniform heat flux [ 27 ].…”

Section: Introductionsupporting

confidence: 53%

“…In [ 25 ], the Hankel transform method was used to obtain an analytical solution of the axisymmetric stationary problem of heat conduction for an FGM layer with thermal conductivity dependent on the depth from the heated boundary surface. The same technique has been applied to solve the steady axisymmetric boundary problem of thermoelasticity for non-homogeneous semi-space with thermomechanical properties that depend exponentially on the distance from the heated surface [ 26 ]. This approach can be used for modeling layered composites with stepwise gradation of the properties, and also for approximate modeling of the materials with a functional change in properties.…”

Section: Introductionmentioning

confidence: 99%

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The Effect of Functionally Graded Materials on Temperature during Frictional Heating: Under Uniform Sliding

2021

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The mathematical model of heating process for a friction system made of functionally graded materials (FGMs) was proposed. For this purpose, the boundary-value problem of heat conduction was formulated for two semi-spaces under uniform sliding taking into consideration heating due to friction. Assuming an exponential change in thermal conductivities of the materials, the exact, as well as asymptotic (for small values of time), solutions to this problem were obtained. A numerical analysis was performed for two elements made of ZrO2–Ti-6Al-4V and Al3O2–TiC composites. The influence of the gradient parameters of both materials on the evolution and spatial distributions of the temperature were investigated. The temperatures of the elements made of FGMs were compared with the temperatures found for the homogeneous ceramic materials.

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Section: Introductionsupporting

confidence: 53%

Section: Introductionmentioning

confidence: 99%

The Effect of Functionally Graded Materials on Temperature during Frictional Heating: Under Uniform Sliding

2021

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“…Multilayer coating systems are widely used in the industry to provide protections for structural components against harsh environments [1][2][3][4][5][6][7][8][9]. For example, thermal barrier coatings (TBCs) are deposited on the superalloy substrate of gas turbine blades to provide the thermal and oxidation protections against high-temperature gas [4][5][6] and environmental barrier coatings (EBCs) are applied to protect SiC/SiC composites from high-temperature water vapor [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

A semi-analytical model for predicting stress evolution in multilayer coating systems during thermal cycling

Fan

Zhou

et al. 2018

International Journal of Mechanical Sciences

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“…The gradient was simulated by assigning different properties values to each sublayer. It was proven that the results received for the FGM strip, divided into a sufficient number of layers, were close to the results found using the corresponding exact solutions [ 13 ]. It should be noted that this conclusion is dependent on the problem under consideration, and the differences between the obtained results may be significant in some cases [ 14 ].…”

Section: Introductionmentioning

confidence: 58%

The Effect of Functionally Graded Materials on Temperature during Frictional Heating at Single Braking

2021

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A mathematical model for evaluation of the temperature mode of the disc–pad system during single braking is proposed. The model is based on the thermal problem of friction formulated for two semi-infinite bodies, compressed with pressure increasing over time while reducing the sliding velocity from the initial value to zero at the stop. The exact solution to this problem was obtained by means of Duhamel’s theorem. Validation of the solution was performed by achieving in special cases parameters of known solution to this problem with constant pressure and velocity (under uniform sliding). The results of the numerical calculations are presented for a selected friction pair, made of functionally graded materials with titanium alloy (disc) and aluminum alloy (pad) cores coated with ceramics graded toward friction surfaces. For the established values of the parameters such as the rise time in pressure and the FGM gradients, the ability to quickly obtain spatiotemporal temperature distributions in the disc and pad was presented. The influence of the variability of these parameters on the maximum temperature of the brake system was also investigated.

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Axisymmetrical problem of thermoelasticity for halfspace with gradient coating

Cited by 16 publications

References 34 publications

The Effect of Functionally Graded Materials on Temperature during Frictional Heating: Under Uniform Sliding

The Effect of Functionally Graded Materials on Temperature during Frictional Heating: Under Uniform Sliding

A semi-analytical model for predicting stress evolution in multilayer coating systems during thermal cycling

The Effect of Functionally Graded Materials on Temperature during Frictional Heating at Single Braking

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