During braking and when the disk brought into contact with the brake pads which represent the friction body, mechanical stresses are imposed at the contact zone. All physical parameters (temperature, pressure speed and mechanical characteristics, and tribological conditions change over time), heat from friction generated at the interface, and temperature may exceed the critical value. All these problems that allowed us to do this study which concerns the numerical simulation by finite elements of a mechanical torque in dry sliding contact with motor vehicle disk/brake pads at the moment of stop braking using the ANSYS calculation code 14.5 which is based on the finite element method with its friction contact management algorithms. This behavior was analyzed in the transient case in terms of equivalent stresses and deformations (Von Mises) as a function of the braking conditions ( the type of loading, the speed of rotation of a disk, the pressure force applied to the brake pads, the coefficient of friction between the disk and the pads), and the thermal conditions (the temperature of the disk, and the heat flux in the disk, and the heat exchange by convection over the entire surface of the disk), the geometrical characteristics of the disk pads assembly and the position of the pads with respect to the brake disk and the mechanical parameters assembly and the position of the pads with respect to the brake disk and the mechanical parameters ( Young’s modulus, density, Poisson coefficient). This analysis allows us to see the behavior of the disk and the pads in contact and to recognize these damages in order to find the optimal technological solutions that will meet the needs of the engineer responsible for the design of the braking system, in particular the disk-pads torque, and to improve this system and make it more reliable and for an optimal and economical choice of the disk and pads well resist heat.

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Q. J, Wang., Y.W, Chung., Encyclopedia of Tribology, Department of Materials Science and Engineering and Center for Surface Engineering and Tribology, Springer, New York, NY, USA. LI, Vol. 6, 4139, 2013

Wen,S., Huang, p., Principales of tribology, Tsinghua University Press, Wiley, 251, 2011

Pelletier, H., Gauthier, C., Schirrer, R., Influence of the friction coefficient on the contact geometry during scratch onto amorphous polymers, Elsevier Wear, Vol. 268, Issues 9–10, pp.1157–1169, 2010

Qifei, J., Wang, Li., Shui, Y., Thermal analysis of ventilated brake disc based on heat transfer enhancement of heat pipe, International Journal of Thermal Sciences, Vol. 155, 106356 , 2020

Belhocine, A., Bouchetara, M., Thermal analysis of a solid brake disc, Applied thermal Engineering, Vol.32, pp. 59-67, 2012

Qifei, J., Wang, L., Numerical and experimental analysis of transient temperature field of ventiled disc brake under the condition of hard braking, International Journal of Thermal Sciences, Vol.122, pp. 115-123 , 2017

Belhocine, A., Bouchetara, M., Temperature and Thermal Stresses of Vehicles Gray Cast Brake, Journal of applied research and technology, Vol. 11, pp. 674-682, 2013

MAGNAIN, B., Development of algorithms and a computer code for the study of impact and shock problems, Doctoral thesis from the University of Evry –Val, Essonne, French, P49, 2006

Kerrouz, S. Bourdim, M. Tamine, T, Bouchetara, M., Study of the Mechanical Behavior of an Automobile Brake Disc, Periodica Polytechnica Mechanical Engineering, 2021.

Jang, H., Ko, K., Kim, S.J., Basch,R. H., Fash, J.W., The effect of metal fibers on the friction performance of automotive brake friction materials, Wear, Vol. 256, pp. 406-414 , 2004

Djafri, M., Numerical and experimental study of the tribological behavior of sliding contacts, Application to disc brakes, doctoral thesis, University of Science and Technology of Mohamed Boudiaf, Oran, Algerian, 2014.

Berthelot, J.M., Composite materials, mechanical behavior and analysis of structures, Springer New York, NY, XXV. 646, ISSN. 0941-5122, 1999

Thomas, J. M., Steven, C.N., Ball, K. J., Bredell, B.C., Thermal cracking in disc brakes , Department of Mechanical and Industrial Engineering, university of Illinois at Urbana –Champaign, 1206 West Green Street, Urbana, IL 61802, USA, journal of Engineering Failure Analysis, Vol.9, pp.6-76 , 2002

Blau, P.J,., Brian, C., and all., Tribological Investigation Of Titanium-Based Materials For Brakes, Wear 263 1202–12110, 2007

Hudson, M. D., Ruhl, R.L., Ventilated Brake Rotor Air Flow Investigation, International Congress and Exposition, Detroit, Michigan, SAE, 1997

Jerhamre, A., Bergstrom, C., Numerical Study of Brake Disc Cooling Accounting for Both Aerodynamic Drag Force and Cooling Efficiency, SAE 2001 World Congress, Detroit, Michigan, 2001

Stephens, A., Aerodynamic Cooling of Automotive Disc Brakes, Master’s thesis, School of Aerospace, Mechanical & Manufacturing Engineering, RMIT University, March, 2006

Oder, G., Reibenschuh, M., lerher,T., ŠRAML, M. ŠAMEC, B. POTRČ, I., Thermal and stress analysis of brake discs in railway vehicles, Advanced Engineering, ISSN.1846-5900, Vol. 3, 2009


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