| About this Abstract |
| Meeting |
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
| Symposium
|
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
| Presentation Title |
Investigating Plastic Anisotropy of Al7079 Using Crystal Plasticity Simulations |
| Author(s) |
Hojun Lim, Sharlotte Kramer, Edmundo Corona, Amanda Jones, Benjamin Reedlunn, Taejoon Park, Farhang Pourboghrat |
| On-Site Speaker (Planned) |
Hojun Lim |
| Abstract Scope |
Processing techniques used to produce polycrystalline metal alloys often result in preferred crystal orientations with associated plastic anisotropy. While various anisotropic plasticity models are used to predict final shapes and prevent catastrophic failure, more predictive models require multiple mechanical tests at various orientations and stress states to fit many model parameters. In order to efficiently characterize and predict plastic anisotropy without extensive mechanical tests, crystal plasticity finite element method (CPFEM) simulations using initial microstructural data from EBSD and XRD measurements are performed and compared with experiments. Tensile tests of Al7079 at various directions are performed to obtain stress-strain response and r-values. It is shown that CPFEM model incorporating the texture and grain morphology of Al7079 captures anisotropic mechanical behavior and r-values reasonably well. In addition, various factors that may influence the accuracy of the anisotropy prediction are investigated. |
| Proceedings Inclusion? |
Definite: At-meeting proceedings |