Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
Fatigue life calculation using incremental damage
Submission Author:
Gabriel Hofmam , DF
Co-Authors:
Gabriel Hofmam, Lucival Malcher
Presenter: Gabriel Hofmam
doi://10.26678/ABCM.COBEM2023.COB2023-1038
Abstract
Fatigue failure is a phenomenon that can be verified in many different types of structures. The first records of the study of fatigue date back to 1827, performed by the mining official, Wilhelm Albert. Since then the study of fatigue has been essential to design all types of equipment in order to avoid premature failure. The work therefore aims to numerically estimate fatigue life through incremental damage. To this end, it will be necessary to implement the 1D Isotropic and Kinematic constitutive model in MATLAB language, validate the implementation by reproducing examples presented in the literature for constant amplitude cyclic, variable amplitude cyclic, and random amplitude loading histories, implement a damage indicator, and study the cases in mechanical components subjected to cyclic loading. The approach proves advantageous when used for fatigue life calculation under random loading.
Keywords
Fatigue Life, Fracture Indicators, ductile fracture
