About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
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Additive Manufacturing Modeling, Simulation and Machine Learning
|
Presentation Title |
Analyzing Micro-macro Transitional Length Scale in 3D Printed Chopped Fiber Reinforced Polymers |
Author(s) |
Indu Modala, Paromita Nath, Nand Kishore Singh |
On-Site Speaker (Planned) |
Indu Modala |
Abstract Scope |
Fiber-reinforced polymers (FRPs) are increasingly being used in additive manufacturing (AM) due to their superior mechanical properties in comparison to thermoplastic polymers. AM process parameters affect the microstructure. Mechanical properties of the FRPs at the macroscale are estimated by homogenization of microscale response. To establish the process-structure-property (PSP) linkages in FRPs, a methodical mechanical characterization of the 3D printed material at different length scales is necessary. In this work, we use a strain-based approach to identify the size of the representative volume element (RVE) of additively manufactured chopped FRP material using finite element analysis (FEA). Representative unit cells (RUC) of increasing sizes are created and analyzed under longitudinal and transverse loading conditions. The effects of the randomization of fibers on the convergence of RUCs are also studied. Finally, the macro scale mechanical properties of the chopped FRPs are predicted using the RVE. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Composites, Computational Materials Science & Engineering |