Skip to main content
Article thumbnail
Location of Repository

A numerical and experimental study on the factors that influence heat partitioning in disc brakes

By Andreas Loizou, Hong Sheng Qi and Andrew J. Day


yesTo investigate the heat partition on a vehicle disc brake, a small scale test rig with one contact interface was used. This allowed the disc/pad contact temperatures to be measured with fast-response foil thermocouples and a rubbing thermocouple. Based on the experimental conditions a 3D symmetric disc brake FE model has been created. Frictional heat generation was modelled using the ABAQUS finite element analysis software. The interface tribo-layer which affects heat partitioning was modelled using an equivalent thermal conductance value obtained from the authors┬┐ previous work. A 10 second drag braking was simulated and the history and distribution of temperature, heat flux multiplied by the nodal contact area, heat flux leaving the surface and contact pressure was recorded. Test rig and FE model temperatures were compared to evaluate the two methods. Results show that heat partitioning varies in space and time, and at the same time contact interface temperatures do not match. It is affected by the instantaneous contact pressure distribution, which tends to be higher on the pad leading edge at the inner radius side. They are also affected by the thermal contact resistance at the components contact interface.IMech

Topics: Brake, Friction, Partition, Thermal, Interface, Heat partition
Publisher: Scientific Society of Mechanical Engineering (GTE)
Year: 2010
OAI identifier:
Provided by: Bradford Scholars

Suggested articles


  1. (2001). Analysis of heat partition and temperature distribution in sliding systems. doi
  2. (2009). Analysis of heat partition ratio in vehicle braking processes, in Braking
  3. (2006). Analytical Study of Design Parameters on Cooling Performance of a Brake Disk, in SAE World Congress. doi
  4. (2006). FE Prediction of Thermal Performance and Stresses in a Disc Brake System, doi
  5. (2006). Fundamental Study on Thermal Behavior of Brake Discs, doi
  6. (1942). Moving sources of heat and the temperature at sliding contacts.
  7. (1984). The Dissipation of Frictional Energy from the Interface of an Annular Disc Brake. doi
  8. Theoretical study of temperature rise at surfaces of actual contact under oiliness lubricating conditions,
  9. (1998). Thermo elastic study on brake pads using FEA.
  10. (2006). Transient heat partition factor for a sliding railcar wheel. Wear, doi
  11. (1959). Transient temperatures attained in disk brakes. doi

To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.