Hydrogen has been proposed as an important energy source for fuel cell vehicles (FCV), and the hydrogen storage tank is considered to be indispensable key equipment for hydrogen application. Currently, Al/carbon-fiber composite hydrogen tanks have become a study focus due to their outstanding properties such as high stiffness-density and strength-density ratio. In standards of this type hydrogen tanks, stress ratio is a primary parameter to be determined. Raising the stress ratio, the reliability will be increased; however, the hydrogen storage density will be decreased accordingly. In this paper, a study on the relationship between the stress ratio and reliability is carried out based on the static strength reliability analysis. The stress-strength interference model is used for the calculation of reliability. For fiber reinforced hydrogen tanks, the stress variance is mainly influenced by two classes of random variables, and the quantity of random variables is affected by the number of composite layers which depends on the stress ratio. So by analysis of stress distribution, the influence of stress ratio on the reliability is revealed, and a theoretical method is developed that can be used for selecting rational stress ratio in the standard.
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ASME 2008 Pressure Vessels and Piping Conference
July 27–31, 2008
Chicago, Illinois, USA
Conference Sponsors:
- Pressure Vessels and Piping
ISBN:
978-0-7918-4824-1
PROCEEDINGS PAPER
Influence of Stress Ratio on the Reliability of Al/Carbon-Fiber Composite Hydrogen Tanks
Haiyan Bie,
Haiyan Bie
Zhejiang University, Hangzhou, Zhejiang, China
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Ping Xu,
Ping Xu
Zhejiang University, Hangzhou, Zhejiang, China
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Jinyang Zheng,
Jinyang Zheng
Zhejiang University, Hangzhou, Zhejiang, China
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Fangming Kai,
Fangming Kai
Zhejiang University, Hangzhou, Zhejiang, China
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Pengfei Liu,
Pengfei Liu
Zhejiang University, Hangzhou, Zhejiang, China
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Yanlei Liu,
Yanlei Liu
Zhejiang University, Hangzhou, Zhejiang, China
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Honggang Chen
Honggang Chen
Zhejiang University, Hangzhou, Zhejiang, China
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Haiyan Bie
Zhejiang University, Hangzhou, Zhejiang, China
Ping Xu
Zhejiang University, Hangzhou, Zhejiang, China
Jinyang Zheng
Zhejiang University, Hangzhou, Zhejiang, China
Fangming Kai
Zhejiang University, Hangzhou, Zhejiang, China
Pengfei Liu
Zhejiang University, Hangzhou, Zhejiang, China
Yanlei Liu
Zhejiang University, Hangzhou, Zhejiang, China
Honggang Chen
Zhejiang University, Hangzhou, Zhejiang, China
Paper No:
PVP2008-61733, pp. 503-508; 6 pages
Published Online:
July 24, 2009
Citation
Bie, H, Xu, P, Zheng, J, Kai, F, Liu, P, Liu, Y, & Chen, H. "Influence of Stress Ratio on the Reliability of Al/Carbon-Fiber Composite Hydrogen Tanks." Proceedings of the ASME 2008 Pressure Vessels and Piping Conference. Volume 1: Codes and Standards. Chicago, Illinois, USA. July 27–31, 2008. pp. 503-508. ASME. https://doi.org/10.1115/PVP2008-61733
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