Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
STRESS MEASUREMENTS IN RAILWAY RAILS USING THE ULTRASONIC METHOD
Submission Author:
Shirley García , SP
Co-Authors:
Shirley García, Thairon Reis, Auteliano Antunes dos Santos Junior
Presenter: Shirley García
doi://10.26678/ABCM.COBEM2019.COB2019-0212
Abstract
The present work demonstrates the application of the ultrasonic technique for the measurement of axial stresses in a steel rail loaded by a transversal force at its center. A single steel rail was subjected to a three-point flexure test on a universal testing machine. The maximum applied load did not exceed the elastic limit of the material. For each load increase, the uniaxial stress along the rail was measured using the ultrasonic method and 4 areas in the rail were evaluated. A simple numerical model was developed to compare the obtained results. The applied stress determined by the ultrasonic method showed good agreement with the values found in the simulation.
Keywords
stress measurements, ultrasonic evaluation, steel rail, non-destructive evaluation
