|About this Abstract
||NUMISHEET 2021: The 12th International Conference on Numerical Simulation of 3D Sheet Metal Forming Processes
||Study on the Influence of the Strain Rate Sensitivity on the Springback of the AA5086 Alloy under Warm Forming Conditions
||Diogo Neto, Marta C. Oliveira, José L. Alves, Luís F. Menezes
|On-Site Speaker (Planned)
Warm forming processes have been successfully applied to overcome some important drawbacks of the Al−Mg alloys, such as poor formability and large springback. The virtual try-out of this type of processes requires the accurate prediction of springback. The process conditions considered in this work are the ones established for the BENCHMARK 3 – Springback of an Al-Mg alloy in warm forming conditions, proposed under the NUMISHEET 2016 international conference. The material under analysis is the AA5086-H111 aluminum alloy. Its mechanical behavior is described by a Hockett-Sherby type hardening law and an orthotropic yield function. The numerical analysis of the warm forming process is performed considering different yield criteria, using a strain rate-dependent flow rule. The results are compared with the ones obtained considering a no-viscous flow rule, highlighting the influence of this parameter in the springback prediction. All numerical simulations are performed with the in-house finite element code DD3IMP.
||Definite: At-meeting proceedings