Experimental Evaluation of Surface Morphology Characteristics During Stick-Slip Process at Low Speed Sliding Test Fras-le S.A

Format:

Conference/Event

Author/Creator:

Masotti, Masotti, author.

Contributor:

Ferreira, Francisco Ney

Gomes, Kássio

Matozo, Luciano

Neis, Patric

Poletto, Jean

Conference Name:

SAE Brake Colloquium & Exhibition - 33rd Annual (2015-10-04 : Charleston, South Carolina, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2015

Summary:

AbstractThe present work presents evaluation of the sliding surface morphology of brake pads during stick-slip. A low-metallic (LM) and a Non Asbestos Organic (NAO) brake friction materials were subjected to slide against a brake disc under conditions favorable to produce stick-slip phenomenon. The experiments were conducted in a laboratory-scale tribometer, which was especially designed to test brake pads used in vehicle. Delta torque divided by slip time (dT/dtslip) was the parameter used to quantify stick-slip propensity. In addition, optical microscope images of the material's surface were obtained at different stages of the braking test. These images were post-processed in appropriate computational software and by means of the segmentation technique, the real contact area, size and amount of contact plateaus related to the brake pad surface were estimated. This technique was effective to quantify the differences in the sliding surface morphology during low speed braking test. Finally, some trends related to the surface morphology of the brake pads selected in this study are shown as well as the relationship between both the material stick-slip behavior and morphological parameters is established and discussed

Notes:

Vendor supplied data

Publisher Number:

2015-01-2685

Access Restriction:

Restricted for use by site license