Abstract
Tube hydraulic bulging tests with fixed-end conditions are carried out to explore tubular material characteristics for 5049 aluminium. Tube diameter at the center of specimen and pole thickness under different internal pressures are recorded during forming process. Based on experimental data, two types of theoretical models using membrane mechanics and total strain theory are applied to determine the flow stress curve of tubular specimens. A tension specimen is cut from the same tube along longitudinal direction and strain-stress curve is fitted by a universal tensile test. In order to test their accuracy, obtained material parameters from three methods are imported into a finite element model (FEM) and its predicted results are compared with bugle height measured from experiments. The comparison shows that the flow stress curve of 5049 aluminium tube can be identified by these three methods and simulated results from total strain model has a better agreement with experimental measures compared with the other two methods.
Original language | English |
---|---|
Title of host publication | ESAFORM 2021 - 24th International Conference on Material Forming |
Number of pages | 10 |
Publisher | PoPuPS (University of LiFge Library) |
Publication date | 2021 |
Article number | 4067 |
ISBN (Electronic) | 9782870193020 |
DOIs | |
Publication status | Published - 2021 |
Event | 24th International ESAFORM Conference on Material Forming, ESAFORM 2021 - Virtual, Online, Belgium Duration: 14 Apr 2021 → 16 Apr 2021 |
Conference
Conference | 24th International ESAFORM Conference on Material Forming, ESAFORM 2021 |
---|---|
Country/Territory | Belgium |
City | Virtual, Online |
Period | 14/04/2021 → 16/04/2021 |
Series | ESAFORM 2021 - 24th International Conference on Material Forming |
---|
Bibliographical note
Publisher Copyright:© ESAFORM 2021 - 24th Inter. Conf. on Mat. Forming. All rights reserved.
Keywords
- Finite element method
- Flow stress curve
- Hydraulic bulging test
- Tubular materials