Eventos Anais de eventos
MECSOL 2022
8th International Symposium on Solid Mechanics
Fatigue and residual stresses – a deleterious combination
Submission Author:
Paulo Pedro Kenedi , RJ , Brazil
Co-Authors:
Danielle Zaidan, Yan Cavalcante Buarque, Paulo Pedro Kenedi, Luís Felipe Guimarães de Souza
Presenter: Paulo Pedro Kenedi
doi://10.26678/ABCM.MECSOL2022.MSL22-0139
Abstract
Mechanical parts submitted to loads that partially yields its transversal cross sections, generates residual stress distributions, which can produce deleterious effects. An analytical model is proposed, using Mechanics of Solids, merging residual stress and fatigue analytical approaches, to estimate the specimen’s fatigue lives. Curvatures are imposed on steel flat bars specimen to partial yield its cross sections. After the spring back, the curved specimens, with different residual stress distributions, are submitted to a bending fatigue load. The proposed analytical model quantifies how deleterious the residual stress can be for the analysed specimens.
Keywords
residual stress, analytical model, fatigue
