About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
High Performance Steels
|
| Presentation Title |
Computational Modeling of the Thermo-Mechanical Plasticity of Low Carbon Martensitic Steel |
| Author(s) |
Raymond Rasmussen, Lavanya Raman, Stephen Yang, Daniyar Syrlybayev, Sam Dunham, Curt Bronkhorst, Ramathasan Thevamaran |
| On-Site Speaker (Planned) |
Raymond Rasmussen |
| Abstract Scope |
We propose an isotropic thermodynamically consistent theory to model the large plastic deformation of low carbon quench and tempered martensitic steel over a range of temperatures and strain rates. Temperature and dislocation density evolution as a function of deformation was measured in addition to the stress strain response during simple compression experiments. Finite element analysis of the theory shows good agreement with the measured flow stress under varied initial temperature and strain rate conditions while predicting the dislocation density and temperature evolution within the margin of error of the experimental results. Both experimental and numerical results provide insight into the microstructural and thermodynamic evolution of the steel which will be discussed. This model is used to predict the mechanical behavior in more complex loading paths with quasi-static forced shear experiments and along different principal directions of the rolled steel. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Iron and Steel, Computational Materials Science & Engineering, Modeling and Simulation |