| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing of Large-scale Metallic Components
|
| Presentation Title |
Constitutive Modeling of Additively Manufactured Multi-phase Steel Alloys by the Crystal Plasticity Finite Element Method |
| Author(s) |
Hongguang Liu, Yung C. Shin |
| On-Site Speaker (Planned) |
Yung C. Shin |
| Abstract Scope |
Metal additive manufacturing is known to produce inhomogeneous microstructures and phases. Therefore, accurate prediction of resultant mechanical properties remains a challenge. A predictive model must account for constituent phases and microstructures. Existing constitutive models are limited to the specific microstructures and the specific test conditions used. In this study, a multi-scale approach is presented to predict the material behaviors of multi-phase steels based on arbitrary phase fractions. The crystal plasticity finite element method is used to obtain the material constitutive behavior of each phase at micro-scale at various strain rates, which is validated with the experimental data or theoretical model. Then the homogenization procedure with the rule of mixture method is used to get the macro-scale constitutive behavior based on the phase fractions measured from the microstructure characterization, which is implemented into the commercial software Abaqus/Standard to simulate the process of tensile test and validated with the experimental data. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Mechanical Properties, Modeling and Simulation |