Task 1 - Multiscale Material Models and Design Framework for Lightweight Alloys (Magnesium and Aluminum)
Objective: Develop a multiscale framework for lightweight materials that account for statistical variations from the material microstructure, product geometry and processing parameters, and that can aid in development of new lightweight alloys and design of lightweight structures for automotive applications.
Approach: We develop a material database and the multiscale framework of internal state variable (ISV) material models and process models for lightweight alloys including magnesium and aluminum. The database to be built will include results from mechanical and microstructure characterization studies performed using advanced experimental techniques. The material model is formulated by a multiscale modeling approach where information from crystal plasticity, dislocation dynamics and molecular dynamics simulations are utilized to provide insights into the functional forms of the ISV's evolution equations, and corresponding material parameters. Finally, a design framework will be developed to design structural components of new lightweight alloys.
- Subtask 1.1: Multiphysics and Multiscale based Internal State Variable Material Model for Simulating Different Manufacturing Processes
- Subtask 1.2: Cyberinfrastructure
- Subtask 1.3: Fatigue Performance of Lightweight Materials
- Subtask 1.4: Multiscale Modeling of Corrosion
- Subtask 1.5: Material Design of Lightweight Mg Alloys
- Subtask 1.6: Simulation-Based Design Optimization
- Subtask 1.7: Solidification Microstructure Modeling in Mg Alloy