| 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 |
Water Absorption Properties and Tensile Strength of Carbon Fibers/Polyamide 6 Composite Formed by Fused-Deposition-Modeling-Type 3D Printer |
| Author(s) |
Kosuke Hida, Kohji Suzuki, Seiichi Nomura, Michael Bozlar |
| On-Site Speaker (Planned) |
Kohji Suzuki |
| Abstract Scope |
In this study, water absorption behaviors are evaluated for short (ca. 0.1mm in length) carbon fiber-reinforced polyamide 6 (PA6) composite materials produced by fused-deposition-modeling (FDM) type 3D printer, with raster angle (cross-ply or angle-ply) and lamination pitch of 0.1mm×20 ply or 0.2mm×10 ply. X-ray computed tomography scan is used to analyze the internal micro-structure of the composite materials. In particular, we investigate the presence of pores to explain the water absorption behavior of the composites. We determine that 0.1 mm×20 ply cross-ply has the maximum water absorption of 10.1%; and the 0.1 mm×20 ply angle-ply has the lowest absorption of 8.45%. Our results indicate the influence of lamination configuration on water absorption: maximum water absorption is measured for a lamination pitch of 0.1 mm, while the water absorption is lower for a larger lamination pitch of 0.2 mm.
We performed tensile tests on specimens exposed to water or not. Composite samples fully exposed to water exhibit lower tensile strength and stiffness, and higher strain at break, compared to fully dried composites with the same raster angle and lamination pitch. We carry out Scanning electron microscopy analysis on fractured surfaces of the specimens to explain the differences in mechanical properties between the fully dried and water saturated composites. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |