About this Abstract |
Meeting |
2021 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2021)
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Symposium
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Materials
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Presentation Title |
Fracture Behavior of FDM Polymer Materials: Impact of Sample Size, Notch, and Element Layout |
Author(s) |
Albert E. Patterson, Charul Chadha, Iwona M. Jasiuk, James Allison |
On-Site Speaker (Planned) |
Albert E. Patterson |
Abstract Scope |
Fracture behavior of additively manufactured (AM) thermoplastic materials is an emerging topic of interest. AM fabrication produces a structured material, one that can be designed to produce metamaterials and other structured materials. Material produced using fused deposition modeling (FDM) is especially known for this effect; it has 3-D anisotropy and defined material elements which can be modeled as regions of isotropic material arranged in a tight lattice. This study experimentally examined four FDM-fabricated materials (two amorphous (ABS and polycarbonate) and one semi-crystalline (slow-cooled PLA)). A series of physical experiments were performed using compact tension (CT) tests. The results were examined and used to generate guidelines for design of FDM material structures for design under various fracture conditions. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |