About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Mechanical Response of Materials Investigated through Novel In-situ Experiments and Modeling
|
| Presentation Title |
Constitutive Model Materials Parameter Determination Using Cyclic Tension-compression Test Data |
| Author(s) |
Dilip Kumar Banerjee, William Luecke, Mark Iadicola, Evan Rust |
| On-Site Speaker (Planned) |
Dilip Kumar Banerjee |
| Abstract Scope |
Springback is a major problem in sheet metal forming especially for advanced lightweighting materials. Finite element (FE) simulations are conducted to understand the deformation behavior and springback in formed materials. Yoshida-Uemori (Y-U) developed a combined isotropic/kinematic hardening model that shows good capability in describing the elastic recovery and the overall tension-compression behavior. This model is described by a few parameters that are derived from test data. This paper describes a novel test setup for conducting controlled uniaxial tension/compression tests and a practical approach for determination of these parameters from tests conducted on DP steels and aluminum alloys. Optimum parameter values are obtained by conducting parameter optimization using a FE model comprising material models that include initial parameter values, where the objective function is the minimization of differences between predicted and measured stress-strain responses. Influence of these parameters on the overall deformation behavior and interdependence/correlation among the parameters are also discussed. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Mechanical Properties, Shaping and Forming, Modeling and Simulation |