Fatigue life evaluation of high pressure hydrogen storage vessel |
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| Authors: | Haiyan Bie Xiang Li Pengfei Liu Yanlei Liu Ping Xu |
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| Affiliation: | 1. Institute of Process Equipment, Zhejiang University, Hangzhou 310027, China;2. Institute of Applied Mechanics, Zhejiang University, Hangzhou, China |
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| Abstract: | By combining the micromechanics and continuum damage mechanics, a theoretical model is proposed to perform the fatigue evaluation of high pressure hydrogen storage vessel under cyclic internal pressure, which concentrates on the fatigue properties of the aluminum liner. Results show that the fatigue lifetime of vessel relates to the finite element mesh size, crack density and ratio in an element, cyclic loading amplitude and stress status at the liner. Effects of the mesh size and crack density on the fatigue lifetime of vessel are discussed. In addition, numerical results are also compared with those by experiments. |
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| Keywords: | Hydrogen storage vessel Fatigue evaluation |
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