Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
ANALYSIS OF SEMI-ELLIPTICAL CRACK GROWTH IN PRESSURE VESSELS
Submission Author:
Hallan Ladeira , DF
Co-Authors:
Hallan Ladeira, Carla Anflor
Presenter: Hallan Ladeira
doi://10.26678/ABCM.COBEM2023.COB2023-0726
Abstract
The present study investigates the stress in an ASTM 516 GR 70 steel pressure vessel and its relationship with the occurrence of semi-elliptical cracks near regions where the maximum principal stress acts with greater intensity. To illustrate this relationship, a case study using a reduced model of the pressure vessel is presented, focusing on the behavior of the semi-elliptical crack in the presence of discontinuities. The results demonstrate that the insertion of semi-elliptical crack close to the discontinuities can significantly modify the mode of crack propagation in those regions.
Keywords
Fracture Mechanics, pressure vessel, crack growth, stress concentration, Computational modeling
