| About this Abstract |
| Meeting |
2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
|
| Symposium
|
2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
|
| Presentation Title |
Interlayer Fracture of Large Area Additive Manufactured Short Fiber Composites |
| Author(s) |
Arief Yudhanto, Neshat Sayah, Douglas E. Smith |
| On-Site Speaker (Planned) |
Arief Yudhanto |
| Abstract Scope |
The advancement in large scale extrusion/deposition 3D printing technology enables the manufacturing of parts having relatively thick beads of polymer composites. Unfortunately, weak interfaces between beads limit the application space of parts produced by large scale extrusion/deposition to tooling and other low-stress designs. The mechanical integrity of large scale 3D-printed composite parts is mainly controlled by the cohesion between layers. Here, we employ fracture mechanics concepts to perform measurements and calculations of mode I interlayer fracture toughness between layers of neat ABS and carbon fiber ABS via double cantilever beam (DCB) test method. The effect of test specimen configuration (single vs. multiple beads) and rigid doublers (useful for eliminating a premature compressive failure but needs to be excluded in the calculation of total energy dissipation) is discussed. The experimental and data reduction methods developed here can be utilized to optimize the interlayer adhesion of large scale 3D printed materials. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |