About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
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Additive Manufacturing Modeling, Simulation and Machine Learning
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Presentation Title |
Modeling the Hardening and Damage Evolution of Additively Manufactured Metal Matrix Composites Using a Large-strain Elasto-viscoplastic FFT-based Framework |
Author(s) |
Claire M. Ticknor, Jamila Khanfri, Alex Butler, Aaron Stebner, Joshua Kacher, Ashley Spear |
On-Site Speaker (Planned) |
Claire M. Ticknor |
Abstract Scope |
The use of metal matrix composites (MMCs) in additive manufacturing (AM) combines two fundamental advantages: MMCs display enhanced strength characteristics, while AM processes can rapidly produce high-quality metal parts with complex geometries. The need to achieve tailorable designs of MMCs that meet specific mechanical performance targets requires models that accurately capture the effects on the hardening and damage evolution response of the material. This is affected by reinforcing particles in MMCs and the AM process-induced microstructure. We propose a modeling framework using a large-strain elasto-viscoplastic fast Fourier transform code incorporating a work-hardening formulation and triaxiality-based continuum damage mechanics. The work-hardening model accounts for several hardening mechanisms occurring in AM MMCs. The framework allows simulation of deformation and failure of 3D polycrystalline MMCs with user-specified volume fractions of the strengthening phase. The superposition of hardening mechanisms, efficacy of the framework, and fracture-initiation-to-microstructure-neighborhood relationships will be presented. |
Proceedings Inclusion? |
Planned: |
Keywords |
Modeling and Simulation, Additive Manufacturing, Mechanical Properties |