About this Abstract |
Meeting |
2024 ASC Technical Conference, US-Japan Joint Symposium, D30 Meeting
|
Symposium
|
2024 ASC Technical Conference, US-Japan Joint Symposium, D30 Meeting
|
Presentation Title |
Micromechanical modeling of additively manufactured short fiber composites |
Author(s) |
Ibrahim Kaleel, Evan J Pineda, Brett A. Bednarcyk |
On-Site Speaker (Planned) |
Ibrahim Kaleel |
Abstract Scope |
Additively manufactured (AM) short fiber composites enhance the overall properties when compared to pure polymer alternatives. This is primary enabled through easy integration of short fiber into the AM precursor filaments. To effectively design and analyze AM short fiber composites, it is critical to understand various material and morphological attributes. These key features incudes fiber length, orientation, fiber clustering, influence of fiber end gaps as well as large pores that are inherent in as-manufactured AM composites. In this work, the properties of AM short fiber composites are predicted using the NASA Multiscale Analysis Tool (NASMAT). The AM composite is made of short carbon fibers within a thermoplastic matrix with a very low fiber volume fraction (~5%). The morphological attributes of the AM short fiber composite are extracted by segmenting the nano CT data using advanced image processing techniques. A micromechanical model of the same is constructed using NASMAT. Given the complexity of the models, various micromechanical theories implemented within NASMAT are employed, namely, High-Fidelity Generalized Method of Cells (HFGMC), the Carrera Unified Formulation (CUF) and standard finite element formulation. The sensitivity of morphological attributes of the AM short fiber composite to the overall properties is studied and compared against available experimental data. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |