| 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 |
Investigating the Low-Velocity Impact Resistance of Helicoidal and Double Double 3D Printed Carbon Fiber Reinforced Polymer Layups |
| Author(s) |
Ashley M. Holland, Jason P. Mack, Faizan Mirza, V.B.C. Tan, T.E. Tay, K.T. Tan |
| On-Site Speaker (Planned) |
K.T. Tan |
| Abstract Scope |
Modern composite research has discovered that varying fiber orientation within a multi-layer composite directly contributes to its performance in out of plane loading. By manipulating the pattern in which fiber orientations exist across layers, a higher impact resistance can be achieved. This proves beneficial to disciplines of aerospace, transportation, and defense, requiring materials of lower manufacturing requirements and final weights whilst maintaining strength performance. This research aims to explore the failure mechanisms and peak loads of 3D printed carbon fiber reinforced polymer (CFRP) composites fluctuating in pattern of fiber orientation. The patterns under inspection include variations of bioinspired helicoidal structures and the recently discovered double double structure. Visual and quantitative results have contributed to an in-depth evaluation of each additively manufactured design to identify the most contributing factors of impact resistance within a composite layup. This research targets 3 mm thin composites under low-velocity impact testing in which two main failure mechanisms are evaluated: fiber breakage and matrix splitting. Specimens containing greater inter-ply angles exhibit fiber breakage and increased stiffness that contribute to greater damage area while specimens containing smaller inter-ply angles exhibit matrix splitting within a more contained damage area. An ideal combination of these characteristics, varying in inter-ply angle, exhibits a balance of these conditions and a specimen capable of the highest peak load before failure. Improvements in low velocity impact resistance will contribute to the overall performance of future composite material designs. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |