Browse Publications Technical Papers 2001-01-3133
2001-10-28

Micromechanical Modelling of Friction Materials 2001-01-3133

Important constituents contained within modern friction materials include a variety of particles, fibres and fillers (collectively termed “inclusions”) that are added to give desired frictional characteristics to the baseline matrix material. The proposed paper presents the results of a microscopy study which has utilised image enhancement software to measure and evaluate the raw constituents of a typical friction material in terms of size, shape and aspect ratio of inclusions. This characterisation has been extended to determine the statistical distribution of constituent inclusions over the working interface after pad manufacture, as well as to measure the degree of inclusion exposure above the free surface. Experimental tests on the binder system (matrix material plus matrix fillers) have also been undertaken to characterise the thermo-mechanical properties at ambient and elevated temperature. A finite element analysis procedure has been developed to estimate the normal stiffness properties of an embedded particle for different inclusion properties as well as for different levels of exposure above the nominal rubbing surface. This unit cell model has been developed further to determine the transverse load carrying characteristics of the embedded hard particle. Information from the experimental characterisation combined with data from the unit cell model has led to the development of a “multi-component” numerical approach to assess the load bearing and frictional characteristics of the interface.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Adsorption and Desorption Effects on Carbon Brake Material Friction and Wear Characteristics

2005-01-3436

View Details

STANDARD

Carbon Brake Contamination and Oxidation

AIR5490A

View Details

TECHNICAL PAPER

Natural Fibers in Friction Materials

2006-01-3187

View Details

X