Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
Aspects about the rail defect classified as squat: A state of the Art
Submission Author:
Gregory Oliveira , PA , Brazil
Co-Authors:
Gregory Oliveira, Vinicius Silva dos Reis, Victor Melo, Emerson Prazeres, Clóvis Santana, JOSÉ MARIA DO VALE QUARESMA
Presenter: Gregory Oliveira
doi://10.26678/ABCM.COBEM2019.COB2019-1975
Abstract
The railway system is of great importance in the transportation of cargo and passengers around the world. The company VALE SA, in partnership with USP, UFPA and other Brazilian universities, is at the forefront of the Cátedra Roda-Trilho, a project where several aspects of this pair are studied. One of the most common defects in rails, internationally considered, is the called Squat, which originated mainly by rolling contact fatigue (RCF). A state of the art of squat is presented. Some aspects, such as historic, location, appearance, detection, and treatment of squat, are discussed. Some research involving this one overtime is presented. The authors point out several mechanisms involving the initiation and propagation of the defect, and in this work, a comprehensive synthesis is made of this.
Keywords
rail defects, RCF, squat
