| 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 |
Application of SHM and Damage-Tolerance Design for Hydrogen Composite Pressure Vessel |
| Author(s) |
Yoshihiro Mizutani, Takanori Sugiyama, Masaaki Samejima |
| On-Site Speaker (Planned) |
Yoshihiro Mizutani |
| Abstract Scope |
An approach was proposed to design high-pressure composite hydrogen vessels for fuel cell vehicles (FCVs) with damage tolerance, incorporating a structural health monitoring (SHM) system. Additionally, a stacking-sequence optimization method was developed, building upon the damage tolerance design. A no-growth approach, damage categorization, and residual strength requirements were proposed for the damage-tolerance design method for high-pressure hydrogen vessels, which were then implemented in the damage-tolerance design method for composite aircraft. The initial burst pressure was set at 180% of normal working pressure (NWP), assuming that the SHM system with acoustic emission (AE) testing would immediately detect fiber failure. Stacking-sequence optimization was conducted to minimize vessel thickness and meet residual strength requirements. The optimization calculations confirmed a potential reduction in vessel thickness by approximately 52% compared to the existing stacking sequence. These results demonstrate the effectiveness of reducing vessel thickness through the introduction of a damage-tolerant design. Moreover, the proposed method for optimal design based on the damage-tolerance design approach is effective. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |