|About this Abstract
||NUMISHEET 2021: The 12th International Conference on Numerical Simulation of 3D Sheet Metal Forming Processes
||Formability Characterization of 3rd Generation Advanced High-strength Steels and Application to Forming of a B-pillar
||Jon Edward Gutierrez, Jacqueline Noder, Clifford Butcher, Neil Parker, Jamie Bowman
|On-Site Speaker (Planned)
||Jon Edward Gutierrez
The first generation of automotive advanced high strength steels (AHSS) steels are beginning to be replaced by 3rd Generation advanced high-strength steels due to their superior strength and formability. In the present work, formability characterization of 3rd Generation steels with strengths of 980 and 1180 MPa was performed using Nakazima and Marciniak tests. The influence of the process-effects due to bending, non-linear strain paths and contact pressure in the Nakazima FLC was considered. The two types of FLCs were then evaluated in the forming of a full-scale B-pillar for a mid-sized sport utility vehicle. It was found that FLCs for the third generation 1180 MPa steel were overly conservative and marginal necking occurred before fracture such that the B-pillars were successfully formed despite the simulations predicting significant splitting.
||Definite: At-meeting proceedings