| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Material Behavior Characterization via Multi-Directional Deformation of Sheet Metal
|
| Presentation Title |
Characterization and Modeling of Anisotropic Fracture of Advanced High Strength Steels |
| Author(s) |
Jun Hu |
| On-Site Speaker (Planned) |
Jun Hu |
| Abstract Scope |
New generations of advanced high strength steels (AHSSs) possess improved strain hardening behavior and resistance to necking that are favorable for automotive body applications. Yet the multiphase microstructure that brings this merit also causes complex orientation-dependent fracture behavior in these steels. This work started from conducting a series of experiments to exhibit the anisotropic fracture of selected AHSSs and highlight the importance and necessity of anisotropic fracture models. A stress-based and a strain-based anisotropic fracture models were calibrated based on the same coupon-level experimental results. Subsequently, with the same plasticity model, the two fracture models were implemented into finite element simulations of a sub-assembly level experiment of sophisticated loading conditions. Eventually, the fracture simulations based on the two models were evaluated by the experimental measurements and compared with each other to reveal their highlights, limitations, and potential improvements. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Mechanical Properties, Modeling and Simulation |