Browse Publications Technical Papers 2005-01-0086
2005-04-11

Springback Determination By Springback Index Approach 2005-01-0086

A new mechanical parameter, Springback Index (SBI), is proposed to reflect the magnitude of sheet-metal springback at a given flow stress level. Through conducting Tension-Unloading-Reloading (TUR) tests and measuring the Effective Unloading Modulus (EUM) Parameter, which is defined as the ratio of the non-linear recovery vs. total recovery, SBI can be determined for the sheet metal after complex forming processes.
To verify this SBI approach, U-free bending tests are conducted with galvanized and galvannealed DP600 sheet steels. The results indicate that the determination of SBI is remarkably simplified and the accuracy of springback prediction is significantly improved.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Preview Document Add to Cart
Members save up to 16% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
JOURNAL ARTICLE

A Path Independent Forming Limit Criterion for Sheet Metal Forming Simulations

2008-01-1445

View Details

TECHNICAL PAPER

Sheet Metal Stretch Flange Analysis: A Manufacturing Viewpoint

750197

View Details

TECHNICAL PAPER

Predicting the Forming Limit Diagram (FLD) for Sheet Metals with Planar Anisotropy

980080

View Details

X