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 |
On the Newly Proposed Shear Constraint for Orthotropic Plasticity Modeling of Sheet Metals |
| Author(s) |
Jie Sheng, Mohammed Alharbi, Wei Tong |
| On-Site Speaker (Planned) |
Wei Tong |
| Abstract Scope |
A new shear constraint has appeared recently in the literature as an general restriction on the anisotropic yield criteria of sheet metals. An evaluation of such a shear constraint was carried out in terms of Hill's 1948 quadratic and Gotoh's 1977 quartic yield functions in plane stress. It was shown that the so-call non-physical numerical artifacts of their non-equivalence in pure shear in stress and strain are in fact the intrinsic features of an anisotropic material. The shear constraint itself should be regarded instead as merely a simplifying but overly restrictive assumption of reduced anisotropy without a general physical basis. |
| Proceedings Inclusion? |
Definite: At-meeting proceedings |