Simulation and burst validation of 70 MPa type IV hydrogen storage vessel with dome reinforcement
| Autor: | Bo Pan, Zhengyun Hu, Minghe Chen |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Renewable Energy Sustainability and the Environment Energy Engineering and Power Technology 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Finite element method 0104 chemical sciences Cylinder (engine) law.invention Stress (mechanics) Dome (geology) Fuel Technology law Fracture (geology) Fiber Composite material 0210 nano-technology Reinforcement Burst mode (computing) |
| Zdroj: | International Journal of Hydrogen Energy. 46:23779-23794 |
| ISSN: | 0360-3199 |
| DOI: | 10.1016/j.ijhydene.2021.04.186 |
| Popis: | The dome reinforcement (DR) technology was studied to reduce the amount of carbon fiber of the type IV hydrogen storage vessel in this paper. Firstly, the influence of the angle and thickness of the dome reinforcement part on the stress distribution of the dome section is studied by finite element analysis. Secondly, the weight reduction of carbon fiber composite layer is studied based on the dome reinforcement model. The strain-based Hashin progressive damage model is used to predict the burst pressure and burst mode with user-defined material subroutine (UMAT) of ABAQUS. Finally, the dome reinforcement technology is further verified in comparison with non-dome reinforcement by burst tests. The results show that the progressive damage model can effectively represent matrix cracking and fiber fracture, and the predicted burst pressure and mode is consistent with the test results. The fiber stress near the equator of the dome section affects the burst mode, and the smaller the angle of dome reinforcement parts, the better the reinforcing effect, and the dome reinforcement technology can help to improve the fiber damage state at the dome, transfer the maximum stress to the cylinder section of the vessel, and ensure the burst mode to be a safe mode. Also, it can help to reduce the consumption of carbon fiber by up to 5.5% in composite material. |
| Databáze: | OpenAIRE |
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