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Visual End-of-Life Criterion for Composite High Pressure Vessels for Hydrogen Storage

[+] Author Affiliations
Heng-Yi Chou, Anthony Bunsell, Alain Thionnet

Mines ParisTech, Evry, France

Paper No. PVP2013-97128, pp. V005T05A001; 6 pages
doi:10.1115/PVP2013-97128
From:
  • ASME 2013 Pressure Vessels and Piping Conference
  • Volume 5: High-Pressure Technology; ASME NDE Division; Rudy Scavuzzo Student Paper Symposium
  • Paris, France, July 14–18, 2013
  • Conference Sponsors: Pressure Vessels and Piping Division, Nondestructive Evaluation Engineering Division
  • ISBN: 978-0-7918-5569-0
  • Copyright © 2013 by ASME

abstract

The storage of hydrogen at pressures clearly presents a challenge to designers of pressure vessels to ensure their utmost reliability. At present there is a paucity of information on the reliability of carbon fibre composite pressure vessels which are intended for use over periods of decades and those testing procedures which are mentioned in standards have been shown to be largely unsuitable as they are based on the failure of metal structures. This study deals with failure and failure prediction in advanced fibre reinforced composite pressure vessels. The aim of this study has been to evaluate the possibility of providing a simple, cost effective and unambiguous visual means of detecting approaching failure at a stage when the pressure vessel can be safely removed from service. It is proposed to benefit from the wide family of carbon fibres which is produced so as to add a layer of carbon fibre composite material, the fibres of which have the same stiffness as the carbon fibres in the bulk of the structure but which possess lower strength. The failure of this layer would provide advanced warning of progressive and unacceptable damage to the pressure vessel and would avoid any ambiguous interpretation.

Copyright © 2013 by ASME

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