Thermomechanical modeling of disc brake contact phenomena

In automotive disc brake system, friction heat is not uniformly distributed due to various reasons such as thermal expansion and imperfections in geometry. It is well known that thermo elastic distortion due to frictional heating affects the contact pressure distribution and can lead to thermo elast...

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Main Authors: Ali Belhocine, Mostefa Bouchetara
Format: Article
Language:English
Published: University of Belgrade - Faculty of Mechanical Engineering, Belgrade 2013-01-01
Series:FME Transactions
Subjects:
Online Access:https://scindeks-clanci.ceon.rs/data/pdf/1451-2092/2013/1451-20921301059A.pdf
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author Ali Belhocine
Mostefa Bouchetara
author_facet Ali Belhocine
Mostefa Bouchetara
author_sort Ali Belhocine
collection DOAJ
description In automotive disc brake system, friction heat is not uniformly distributed due to various reasons such as thermal expansion and imperfections in geometry. It is well known that thermo elastic distortion due to frictional heating affects the contact pressure distribution and can lead to thermo elastic instability, where the contact load is concentrated in one or more small regions on the brake disc surface. These regions then take very high temperature and passage of hot spots moving under the brake pads can cause undesirable effects, such as brake fade, thermal cracks, and vibration. The main purpose of this study is to analysis the thermo mechanical behavior of the dry contact between the brake disc and pads during the braking phase. The thermal-structural analyze is then used to determine the deformation and the Von Mises stress established in the disc, the contact pressure distribution in pads. The results are satisfactory, when compared with those of the specialized literature.
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spelling doaj.art-c71c71e578274863a4161dc68fc29f162022-12-21T22:17:27ZengUniversity of Belgrade - Faculty of Mechanical Engineering, BelgradeFME Transactions1451-20922406-128X2013-01-0141159651451-20921301059AThermomechanical modeling of disc brake contact phenomenaAli Belhocine0Mostefa Bouchetara1Faculty of Mechanical Engineering, University of USTO Oran, AlgeriaFaculty of Mechanical Engineering, University of USTO Oran, AlgeriaIn automotive disc brake system, friction heat is not uniformly distributed due to various reasons such as thermal expansion and imperfections in geometry. It is well known that thermo elastic distortion due to frictional heating affects the contact pressure distribution and can lead to thermo elastic instability, where the contact load is concentrated in one or more small regions on the brake disc surface. These regions then take very high temperature and passage of hot spots moving under the brake pads can cause undesirable effects, such as brake fade, thermal cracks, and vibration. The main purpose of this study is to analysis the thermo mechanical behavior of the dry contact between the brake disc and pads during the braking phase. The thermal-structural analyze is then used to determine the deformation and the Von Mises stress established in the disc, the contact pressure distribution in pads. The results are satisfactory, when compared with those of the specialized literature.https://scindeks-clanci.ceon.rs/data/pdf/1451-2092/2013/1451-20921301059A.pdfbrake discsheat fluxheat transfer coefficientvon mises stresscontact pressure
spellingShingle Ali Belhocine
Mostefa Bouchetara
Thermomechanical modeling of disc brake contact phenomena
FME Transactions
brake discs
heat flux
heat transfer coefficient
von mises stress
contact pressure
title Thermomechanical modeling of disc brake contact phenomena
title_full Thermomechanical modeling of disc brake contact phenomena
title_fullStr Thermomechanical modeling of disc brake contact phenomena
title_full_unstemmed Thermomechanical modeling of disc brake contact phenomena
title_short Thermomechanical modeling of disc brake contact phenomena
title_sort thermomechanical modeling of disc brake contact phenomena
topic brake discs
heat flux
heat transfer coefficient
von mises stress
contact pressure
url https://scindeks-clanci.ceon.rs/data/pdf/1451-2092/2013/1451-20921301059A.pdf
work_keys_str_mv AT alibelhocine thermomechanicalmodelingofdiscbrakecontactphenomena
AT mostefabouchetara thermomechanicalmodelingofdiscbrakecontactphenomena