About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing of Lightweight Alloy Matrix Composites
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| Presentation Title |
Modeling the Ductile-To-Brittle Transition of Reactive Additive Manufactured Metal Matrix Composites Using a Damage-Enabled FFT Framework |
| Author(s) |
Claire M. Ticknor, Alex Butler, Jamila Khanfri, Josh Kacher, Aaron Stebner, Ashley Spear |
| On-Site Speaker (Planned) |
Claire M. Ticknor |
| Abstract Scope |
Reactive additive manufactured metal matrix composites (RAM-MMCs) undergo an in-situ thermally activated chemical reaction to form sub-µ reinforcement particles that strengthen the material while leaving large unreacted precursor particles that decrease ductility due to early onset of particle debonding and cracking. With increasing amount of precursor particles, we observe the strength and ductility tradeoff. To effectively optimize this tradeoff and meet performance targets, high-fidelity models are needed to capture the process-induced microstructure, sub-µ particle strengthening, and fracturing of unreacted particles. We propose a modeling framework using a damage enabled large-strain elasto-viscoplastic fast Fourier transform (LS-EVPFFT) code that incorporates a RAM-MMC specific strengthening constitutive model capturing the sub-µ particle effects and unreacted particle fracture. Further, synthetic heterogeneous microstructure inputs are constructed with a conditional generative adversarial network to capture the process-induced microstructure. This work aids the understanding of structure-to-property relationships for various volume fraction compositions of RAM-MMCs to enable performance-based designs. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Composites, Modeling and Simulation |