About this Abstract |
Meeting |
2021 TMS Annual Meeting & Exhibition
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Symposium
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Mechanical Response of Materials Investigated through Novel In-situ Experiments and Modeling
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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 |