GrindoSonic

GrindoSonic

Belgium

Non-Member

Detecting cracks in brake pads using impulse excitation.

A well-established method for brake pad characterization is now turning its hand to detecting cracks in the friction material of the brake pads.  

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16 July 2021

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EB2021-STP-014

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Ing. Juan Jose Bustos, GrindoSonic, BELGIUM

Dr.-Ing. Alex Van den Bossche, GrindoSonic, BELGIUM


Vehicles today may bear little resemblance to their predecessors but one element remains largely unchanged: the disk brake is still the most commonly used braking system for automotive vehicles.

Brake pad production is big business and competition has driven the development of new types of friction materials – materials whose

properties need careful characterization and this is where

impulse excitation comes in.

Analysis of the resonant frequencies following impulse

excitation is a well-established quality assurance tool for

brake pads. It even has its own standard: SAE J2598.

The push to develop more environmentally and biologically friendly brake-pad materials has led to the introduction of new friction materials.

Some of these materials may however be more prone to cracking either in the production process or during use, thus a simple method is needed to identify cracks in brake pads.

EuroBrake 2021

AMM

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Crack Detection in Friction Material of Brake Pads, EB2021-STP-014, EuroBrake 2021

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