| About this Abstract |
| Meeting |
TMS Specialty Congress 2025
|
| Symposium
|
The 7th International Congress on 3D Materials Science (3DMS 2025)
|
| Presentation Title |
Modeling the Hardening and Damage Evolution of Additively Manufactured Metal Matrix Composites Using an Elasto-Viscoplastic FFT-Based Framework |
| Author(s) |
Claire M. Ticknor, Jamila Khanfri, Alex Butler, Josh Kacher, Aaron Stebner, Ashley Spear |
| On-Site Speaker (Planned) |
Claire M. Ticknor |
| Abstract Scope |
Additively manufactured (AM) particle-reinforced metal matrix composites (MMCs) combine two fundamental advantages: 1) the additive process can rapidly produce metal parts with complex geometries, and 2) metal matrix composites display enhanced mechanical strength relative to pure metal. A fundamental aspect of designing AM MMCs to meet mechanical performance targets includes high-fidelity models that effectively capture the hardening and damage response of the material, which is affected by the amount of reinforcement particles, process-induced microstructure, and presence of defects. We propose a modeling framework using a large-strain elasto-viscoplastic fast Fourier transform (EVPFFT) code that incorporates an AM MMC-specific work-hardening formulation coupled with triaxiality-based continuum damage mechanics. With this framework, the deformation and failure for multiple volume fractions of particle reinforcements and the resulting tradeoffs of strength and ductility in polycrystalline AM MMCs can be simulated. This work aids the understanding of the structure-to-property relationships of AM MMCs to enable performance-based designs. |
| Proceedings Inclusion? |
Undecided |