Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Fatigue characterization of the C36000 copper alloy using the thermographic method
Submission Author:
Lucas Lira Lopez Rego , RJ
Co-Authors:
Lucas Lira Lopez Rego, Jaime T P Castro, José Luiz de França Freire, Vitor Paiva
Presenter: Lucas Lira Lopez Rego
doi://10.26678/ABCM.COBEM2017.COB17-1512
Abstract
Even though the use of thermography as a non-destructive testing method is relatively well known, its use as a reliable tool for measuring the fatigue properties of metals is not. However, analyzing the temperature rise on the external surface of a structural component during cyclic loading can provide a reliable measure of its fatigue limit, avoiding the need for destructive tests and requiring much less time than standard test methods. It’s also possible to determine the SN curve and the influence of the mean stress on its behavior through the same methodology, correlating an energy parameter with the assumption of its dependency on the stress amplitude. The results presented here show good agreement between the predicted and measured fatigue limits and mean stress influenced SN curves.
Keywords
IR Thermography, Risitano Method, Fatigue Limits, Fatigue curves
