| About this Abstract |
| Meeting |
NUMISHEET 2022: The 12th International Conference on Numerical Simulation of 3D Sheet Metal Forming Processes
|
| Symposium
|
NUMISHEET 2022
|
| Presentation Title |
On the Generalized Plane-Strain Constraints for Orthotropic Plasticity Modeling of Sheet Metals |
| Author(s) |
Jie Sheng, Seung-Yong Yang, Wei Tong |
| On-Site Speaker (Planned) |
Wei Tong |
| Abstract Scope |
Generalized plane-strain constraints have recently been proposed in the literature as a rather general restriction on admissible anisotropic plastic potentials for modeling sheet metals. In addition to the early proposed shear constraint, a set of seven constraints have been advocated to be physically necessary for plane-strain tension and compression of sheet metals as well. This study examines first the implication of such constraints on Gotoh’ 1977 non-quadratic yield criterion. These new constraints are then investigated in the context of crystal plasticity modeling of cubic crystals. Finally, the experimental evidence that is used to support these constraints is re-assessed upon the study of Gotoh’s 1977 fourth-order yield criterion and crystal plasticity modeling. The applicability of newly proposed plane-strain constraints for sheet metal modeling in general is discussed in the end. |
| Proceedings Inclusion? |
Definite: At-meeting proceedings |