Publication Details |
| Category | Text Publication |
| Reference Category | Journals |
| DOI | 10.1016/S0749-6419(03)00080-9 |
| Title (Primary) | A material model for finite elasto-plastic deformations considering a substructure |
| Author | Bucher, A.; Görke, U.-J.; Kreißig, R. |
| Source Titel | International Journal of Plasticity |
| Year | 2004 |
| Department | ENVINF |
| Volume | 20 |
| Issue | 4-5 |
| Page From | 619 |
| Page To | 642 |
| Language | englisch |
| Keywords | elasto-plasticity; finite deformations; FEM; constitutive behavior; substructure; thermodynamics; anisotropy; internal variables; plastic spin; yield function |
| Abstract | Developing further the substructure models proposed by Mandel and Dafalias a thermodynamically consistent system of differential and algebraic equations is derived to describe anisotropic elasto-plastic material behavior at finite deformations. Based on the multiplicative split of the deformation gradient an appropriate material law is formulated applying the principle of the maximum of plastic dissipation. Generalized basic relations of this material model containing a relation of hyperelasticity, evolutional equations for the internal variables describing different kinds of hardening, and the yield condition are presented. The capacity of the proposed material model is demonstrated on the example of a sheet with a hole. Presenting the evolution of yield surfaces the capability of the model to describe anisotropic hardening behavior is shown. |
| Persistent UFZ Identifier | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=4015 |
| Bucher, A., Görke, U.-J., Kreißig, R. (2004): A material model for finite elasto-plastic deformations considering a substructure Int. J. Plast. 20 (4-5), 619 - 642 10.1016/S0749-6419(03)00080-9 |
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