Abstract
A hybrid experimental-numerical approach is employed to characterize the plasticity and fracture properties of 1.0 mm thick aluminum 6061-T4 sheets. The experimental program consists of various tests corresponding to different stress states ranging from simple shear up to plane strain tension. The anisotropic elasto-plastic behavior is characterized by a modified Barlat89 model (MAT36E) in the commercial finite element solver LS-DYNA. The stress state dependent ductile fracture behavior is modeled with the Xue-Wierzbicki fracture criteria, which is implemented into the phenomenological damage model GISSMO in LS-DYNA. A deep drawing experiment is performed for the validation of the material card. The FE-simulation of the deep drawing experiment using the calibrated material card is able to predict the onset of fracture accurately.
| Original language | English |
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| State | Published - 2021 |
| Event | 16th International Conference on Computational Plasticity: Fundamentals and Applications, COMPLAS 2021 - Barcelona, Spain Duration: 7 Sep 2021 → 10 Sep 2021 |
Conference
| Conference | 16th International Conference on Computational Plasticity: Fundamentals and Applications, COMPLAS 2021 |
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| Country/Territory | Spain |
| City | Barcelona |
| Period | 7/09/21 → 10/09/21 |
Keywords
- GISSMO
- MAT36
- Sheet Metal Forming Simulation
- Xue-Wierzbicki