Influence of Liner Yield Strength on Performance of CNG-II Composite Cylinder

Hong Xin You; Shuang Zhang; Yang Guo; Run Jie Liu

doi:10.4028/www.scientific.net/AMR.1052.537

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1052Influence of Liner Yield Strength on Performance...

Influence of Liner Yield Strength on Performance of CNG-II Composite Cylinder

Abstract:

The yield strength of liner material affecting the performance of CNG-II composite cylinder was studied by finite element method (FEM) analysis. The yield strength of liner material 30CrMo was changed from 730MPa to 850MPa with seven strength. The tensile strength of liner material, structural parameters of CNG-II composite cylinder and winding parameters were fixed as the yield strength of liner material changing. The auto-frettage effects of CNG-II composite cylinder became worse and the fatigue life of CNG-II composite cylinder lowered with the increasing of liner yield strength. The yield strength of liner should be lowered to some extent for improving the performance of CNG-II composite cylinder in the production of CNG-II composite cylinder.

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Periodical:

Advanced Materials Research (Volume 1052)

Pages:

537-542

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1052.537

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Online since:

October 2014

Authors:

Hong Xin You*, Shuang Zhang, Yang Guo, Run Jie Liu

Keywords:

CNG-II Composite Cylinder, Finite Element Method (FEM), Hoop Stress, Liner, Yield Strength

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