| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Mechanical Response of Materials Investigated Through Novel In-Situ Experiments and Modeling
|
| Presentation Title |
A Virtual Framework to Model the Microstructural Evolution in Laser-direct-drive experiments. |
| Author(s) |
Andrew Shortridge, Ching Chen, Avinash Dongare |
| On-Site Speaker (Planned) |
Andrew Shortridge |
| Abstract Scope |
The study of microstructure evolution during laser interaction has largely focused on continuum models. Laser energy absorption by metals occurs over extremely short durations (few ps to several ns) resulting in extreme temperatures and pressures affecting shock-induced microstructure evolution, based on thermal transport properties. One phenomenon is the generation of ejecta due to shock-wave interactions with surface perturbations using laser-direct-drive experiments. The mesoscale approach employs the quasi-coarse grained dynamics (QCGD) framework, scaling molecular dynamics (MD) simulations to the time and length scales of experiments. QCGD integrates with the continuum two-temperature model (TTM) to model laser-metal interactions. This talk demonstrates the capability of a hybrid mesoscale-continuum approach to create digital twins of laser direct-drive experiments, predicting spatial and temporal distributions of temperature, stresses, and microstructure evolution in metals during ejecta formation for variations in laser parameters. The QCGD-TTM method allows investigation of microstructure characteristics at time and length scale of experiments. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Computational Materials Science & Engineering, Modeling and Simulation, Mechanical Properties |