Three-element model of frictional heating during braking with contact thermal resistance and time-dependent pressure

Yevtushenko, A.A.; Kuciej, М.; Yevtushenko, O.

doi:10.1016/j.ijthermalsci.2010.11.009

Cited by 30 publications

(10 citation statements)

References 18 publications

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“…The frictional sliding between the crack faces gives rise to heating. A superficial heat source [56,57] equal to the frictional power, calculated with the shear stress and the relative sliding velocity, is considered together with the continuity of the temperature field across the crack surface :…”

Section: Thermoelastic Fracture Problem Formulationmentioning

confidence: 99%

Two-scale thermomechanical damage model for dynamic shear failure in brittle solids

Gbetchi

Dascalu

2020

Continuum Mech. Thermodyn.

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A coupled thermo-mechanical damage approach for dynamic shear failure in brittle solids is proposed in the present contribution. The model is constructed by asymptotic homogenization from microstructures with dynamically evolving microcracks, in mode II, with unilateral contact and friction conditions on their lips. Crack-tip and frictional heating effects assumed at the small-scale give rise to distributed heat sources in the macroscopic temperature equation and specific dissipation terms in the upscaled damage law. The analysis of the effective thermomechanical response of the model reveals strain-rate and size effects and the influence of friction and growth of microcracks on the macroscopic thermal evolutions.

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Section: Thermoelastic Fracture Problem Formulationmentioning

confidence: 99%

Two-scale thermomechanical damage model for dynamic shear failure in brittle solids

Gbetchi

Dascalu

2020

Continuum Mech. Thermodyn.

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“…A test setup was made to uniformly heat the disc at low rotational speeds with a powerful induction heater and subsequently cooling the stationary disc. Yevtushenko et al 12,13 proposed an iterative model based on Chichinadze’s hypothesis to solve the nonlinear thermal boundary of friction braking. Yevtushenko and Grzes 14 used the aforementioned model and finite element method to calculate the maximum temperature on the contacting friction surfaces of three disc in the form of rings.…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical study of turbulent flow and thermal behavior of automotive brake disc under repetitive braking

Jafari

Erkılıç

Tekin

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part D:

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The frictional brake system is the most safety critical equipment to decelerate or stop a vehicle. Thermal performance of the frictional region parts, disc and pads, necessitates to evaluate precisely in the design and test steps. In this study, a brake test setup was designed and fabricated with exactly the same braking components used in a common passenger vehicle as disc, pads, rim, tire, and dust shield to simulate the sequential braking. The local temperature on the disc and pads and the brake fluid pressure were measured. In addition, a three dimensional numerical model was designed to simulate the aerodynamics and thermal performance of the braking in detail. Finite element method was employed to simulate the frictional heat between the brake disc and the pads. The results showed that although the velocity of mainstream airflow reduces significantly into the rim, turbulent flow develops in the form of eddies of swirling airflow. Additionally, transient temperature distribution on the braking components was predicted. The cooling vanes in the brake disc have considerably enhanced the convection heat transfer. The amount of convective heat transfer on the inner radial vanes was more than 58% of the total amount of convective heat transfer.

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“…5,6 Analytical solutions to the one-dimensional thermal problems of friction with account of time-dependent increase in contact pressure have been obtained in some of the papers. [7][8][9][10] Analytical models of frictional heating with three different heat fluxes, for a homogeneous semi-space, which simulates a disk brake, have been proposed in the article by Topczewska. 11 Solution to the heat conduction problem for two semi-infinite solids with account of change in the friction coefficient under the influence of the temperature has been received in the article by Olesiak et al 12 Consideration of thermosensitivity of materials and their mutual dependence of temperature on the contact surface and the friction coefficient in a tribosystem consisting of two semi-spaces has been conducted in the paper by Yevtushenko et al 13 Extensive review of developed one-dimensional analytical models of frictional heating has been explained in the article by Yevtushenko and Kuciej.…”

Section: Introductionmentioning

confidence: 99%

Analytical model for investigation of the effect of friction power on temperature in the disk brake

Yevtushenko

Kuciej

Topczewska

2017

Advances in Mechanical Engineering

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In this article, the effect of different time profiles of friction power on a temperature distribution in friction element of a brake has been analyzed. For this purpose, a one-dimensional heat problem of friction during braking for 10 temporal profiles of the specific power of friction has been formulated and solved exactly. Based on the analytical solutions, numerical calculations of the temperature distributions have been carried out. A comparative analysis of the obtained results with corresponding data, that were found using an approximate solution from the Chichinadze's monograph titled Calculation and study of external friction during braking, has also been performed. Conducted numerical analysis has allowed us to establish the applicability limits of this approximate solution. We also determined that the temporal profile of friction power has a significant influence on the evolution of the surface temperature, and on temperature field inside a disk brake.

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Three-element model of frictional heating during braking with contact thermal resistance and time-dependent pressure

Cited by 30 publications

References 18 publications

Two-scale thermomechanical damage model for dynamic shear failure in brittle solids

Two-scale thermomechanical damage model for dynamic shear failure in brittle solids

Experimental and numerical study of turbulent flow and thermal behavior of automotive brake disc under repetitive braking

Analytical model for investigation of the effect of friction power on temperature in the disk brake

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