| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Material Behavior Characterization via Multi-Directional Deformation of Sheet Metal
|
| Presentation Title |
Determination of Optimum Tension-compression Loops/Cycles for Estimating Yoshida-Uemori Constitutive Model Parameters for Advanced Lightweighting Materials |
| Author(s) |
Dilip Kumar Banerjee, William Luecke, Mark Iadicola, Evan Rust |
| On-Site Speaker (Planned) |
Dilip Kumar Banerjee |
| Abstract Scope |
Yoshida-Uemori (Y-U) combined isotropic-kinematic hardening constitutive models are widely used in modeling deformation behavior of advanced lightweighting materials during forming operations for producing automotive sheet metal components. This model can predict springback effect that occurs during shaping and forming operations, which is attributed to the Bauschinger effect. The model is described by a set of parameters, whose values can be obtained by combing uniaxial tension-compression test data with finite element modeling results along with an appropriate optimization approach. However, Y-U model parameter values can vary based on the selection of the order of deformation (e.g., tension-compression-tension (T-C-T), C-T-C etc.), maximum strain level in each cycle, and the number of cycles or loops in the tests. The present work describes an optimum approach for estimating these parameters by conducting numerical experiments on collected T-C stress-strain data of several alloys by varying the order of deformation, strain levels, and number of loops. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Mechanical Properties, Shaping and Forming, Modeling and Simulation |