| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Integrated Computational Materials Engineering for Physics-Based Machine Learning Models
|
| Presentation Title |
PRISMS-MultiPhysics: An Open-Source Coupled Phase Field-Crystal Plasticity Framework and its Application to Simulate Twinning in Magnesium Alloys |
| Author(s) |
David Montiel, Chaitali Patil, Mohammadreza Yaghoobi, Brian Puchala, Anton Van der Ven, Katsuyo Thornton, Veera Sundararaghavan, John Allison |
| On-Site Speaker (Planned) |
David Montiel |
| Abstract Scope |
Twinning is one of the main deformation mechanisms in Magnesium alloys, resulting in strongly anisotropic strength and poor formability. Therefore, a fundamental understanding of the formation and propagation mechanisms of twins is needed for the design of Mg alloys with improved mechanical properties. We discuss the development of a multi-scale framework to model the nucleation, propagation, and growth of twins. This framework (PRISMS-MP) features concurrent integration of phase-field and crystal plasticity models to describe the evolution of twins while considering the effects of elastic and plastic deformation. We demonstrate the application of the model to simulate the evolution of twins in Mg. In addition, we discuss integration with the PRISMS Cluster Approach to Statistical Mechanics (CASM) framework to obtain twin boundary energies and mobilities required to parameterize the coupled model. Finally, we discuss plans to employ the framework to investigate the effects of different solutes on twinning in Mg alloys. |