Formability Predictions of Hydroformed AKDQ Steel Tubes by Various Burst Criteria
2007-01-1690
04/16/2007
- Event
- Content
- The accurate prediction of burst of hydroformed tubes is a research area of considerable importance in order to evaluate a design before prototyping. This report applies the presently available criteria (forming limit diagram, stress-based forming limit diagram, extended stress based forming limit curve and the plastic strain criterion) to some of the benchmark examples carried out by the Auto/Steel partnership. It was found that the formability predictions are lowest if the plastic strain criterion is used and highest if either the stress-based criteria are used. Predicted and measured results were also compared.
- Pages
- 13
- Citation
- Chen, K., "Formability Predictions of Hydroformed AKDQ Steel Tubes by Various Burst Criteria," SAE Technical Paper 2007-01-1690, 2007, https://doi.org/10.4271/2007-01-1690.