Influence of Thermal Sensitivity of Functionally Graded Materials on Temperature during Braking

The model of the frictional heating process during single braking to determine the temperature of the functionally graded friction elements with an account of the thermal sensitivity of materials was proposed. The basis of this model is the exact solution of the one-dimensional thermal problem of fr...

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Bibliographic Details
Published in:Materials 2022-01, Vol.15 (3), p.963
Main Authors: Yevtushenko, Aleksander, Topczewska, Katarzyna, Zamojski, Przemysław
Format: Article
Language:English
Subjects:
Braking
Braking systems
Crack propagation
Deceleration
Exact solutions
Finite element analysis
Friction
Functionally gradient materials
Heat conductivity
High temperature
Laplace transforms
Numerical analysis
Sensitivity
Stress analysis
Temperature dependence
Thermal stability
Titanium alloys
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Summary:The model of the frictional heating process during single braking to determine the temperature of the functionally graded friction elements with an account of the thermal sensitivity of materials was proposed. The basis of this model is the exact solution of the one-dimensional thermal problem of friction during braking with constant deceleration. The formulas approximating the experimental data of the temperature dependencies of properties of the functionally graded materials (FGMs) were involved in the model to improve the accuracy of the achieved results. A comparative analysis was performed for data obtained for temperature-dependent FGMs and the corresponding data, calculated without consideration of thermal sensitivity. The results revealed that the assumption of thermal stability of FGMs during braking may cause a significant overestimation of temperature of the friction pair elements.
ISSN:1996-1944
1996-1944
DOI:10.3390/ma15030963