| 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 |
Out-of-Plane Compression Behavior of the Carbon Fiber Reinforced Plastic for Composite Pressure Vessel |
| Author(s) |
Naruki Ichihara, Masahito Ueda, Yusuke Tsuchiyama, Takeshi Watanabe, Yuta Urushiyama |
| On-Site Speaker (Planned) |
Naruki Ichihara |
| Abstract Scope |
Type-IV hydrogen storage vessels for fuel cell vehicles are made by filament winding of carbon fiber-reinforced plastics (CFRP). Despite the cylinder of the vessel carrying almost in-plane stress, the dome around the boss bears the out-of-plane stress. This stress is one of the factors to lead damage of CFRP around the boss and hydrogen leaks. This study investigated the out-of-plane compression behavior of the unidirectional- (UD-) CFRP. As a result, the UD-CFRP represented low out-of-plane compression strength. To overcome this low strength, the effect of the cross-ply layers on the compression behavior was experimentally examined. The improvement of compression strength was affected by the off-axis angle of compression stress and pitch of the cross-ply layers. The cross-ply layer may prevent the transverse crack across the boss depth and pave the way for the vessel to be more lightweight with structural integrity. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |