About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Material Behavior Characterization via Multi-Directional Deformation of Sheet Metal
|
Presentation Title |
A Practical Edge Fracture Limit for the Advanced High Strength Steels |
Author(s) |
Hua-Chu Shih |
On-Site Speaker (Planned) |
Hua-Chu Shih |
Abstract Scope |
A robust methodology is in demand to evaluate and develop edge fracture limit and subsequently predict the sheared edge formability. In the study, different shear edge conditions of various AHSS materials were evaluated by the conventional hole expansion test and the half specimen dome test (HSDT). The edge fracture limit developed from HSDT method was validated by FEA predictions with experimental data. Results indicated that material processed along rolling direction under the 15-18% cutting clearance can deliver a competitive sheared edge formability as the laser cutting edge. The edge limit developed from the hole expansion test can be utilized for a more conservative sheared edge formability prediction on normal mechanical-trim edge blank, while HSDT data for a properly prepared edge condition can be used for the prediction of laser-trim edge blank. A proposed five levels shear face condition vs. stretchability reduction chart is recommended for a quick field validation criterion. |
Proceedings Inclusion? |
Planned: |
Keywords |
Other, Other, Other |