EXPERIMENTAL AND NUMERICAL ANALYSIS OF WEAR BEHAVIOR OF BRAKE PAD FOR LMV USING DIFFERENT COMPOSITIONS

Abstract

In this work, the wear behavior of brake pad material under the influence of parameters like sliding
velocity, sliding distance, and normal load under Dry Friction Condition is studied. Brake pad is made up of
complex composite material so such three compositions suitable for Light Motor Vehicles are selected for test and
named as material I, material II and material III. The tribological behavior of composites was investigated by pin
on disc apparatus. Load, sliding speed and sliding distance were taken as the process variable. The parameters are
set for different levels and in optimum possible combination by Taguchi experimentation design array. Wear rate is
obtained as a response of experimentation and then further analyzed in design expert software. Parametric relation
is developed in the form of equation for each material composition. At the end all three materials are compared on
the basis of wear rate and coefficient of friction. Graphical representation is used to interpret the statistical data,
three-dimensional graphs comparing wear rate of all three materials simultaneously under the influence of
individual parameters namely load, sliding distance and sliding velocity are given in results. Conclusions of the
present work are, as load and sliding distance increases wear rate also increase, and as the velocity of sliding
increases wear rate slightly decrease. Material composition is the major factor influencing the wear rate of brake
pad, as the wear rate of all three material are different which is shown in paper in tabulated form. The increase in
percentage of carbon increases the wear resistance.