| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Material Behavior Characterization via Multi-Directional Deformation of Sheet Metal
|
| Presentation Title |
A New Yield Criterion Accounting for Anisotropy and Anisotropic Asymmetry from Near Isotropy to Triclincity |
| Author(s) |
Zachary Brunson, Aaron P Stebner |
| On-Site Speaker (Planned) |
Zachary Brunson |
| Abstract Scope |
With the ever-increasing drive for light-weighting structures in every industry from aerospace and automotive to wind and solar power, structural materials with anisotropic and asymmetric behavior are becoming more popular, including heavily textured materials such as sheet metal. Since an accurate and efficient description of the elastic limit is necessary to describe both the deformation during manufacturing and the final component strength, we propose two new yield criteria for anisotropic and anisotropically asymmetric solids. Extending the 2006 and 2008 orthotropic yield criteria of Cazacu, Plunkett, and Barlat to allow for anisotropy in both the strengths and strength differential effects (asymmetry) allows for modelling of asymmetry in shear, a reduction in the number of coefficients, and applications to lower symmetry materials (i.e. triclinic). This presentation explores the world of anisotropic and asymmetric yield criteria, introducing two new yield criteria with non-isotropic asymmetry and providing experimental case studies for various applications. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |