Hydrogen permeability of thin-ply composites after mechanical loading

Katsivalis, Ioannis; Signorini, Virginia; Ohlsson, Fredrik; Langhammer, Christoph; Minelli, Matteo; Asp, Leif E.

doi:10.1016/j.compositesa.2023.107867

Cited by 7 publications

(1 citation statement)

References 26 publications

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“…The hydrogen permeability of the composite before and after mechanical loading was examined in a separate study [14]. Tests were only done in the interval +5 °C to +45 °C, but confirmed the expected decreasing diffusion rate with temperature, and that leak rates would be well below required values for cryogenic tanks.…”

Section: Materials and Materials Datamentioning

confidence: 99%

Design, Manufacture, and Cryogenic Testing of a Linerless Composite Tank for Liquid Hydrogen

Olsson,

Cameron,

Moreau

et al. 2024

Appl Compos Mater

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This paper describes design, manufacture, and testing of a linerless composite vessel for liquid hydrogen, having 0.3 m diameter and 0.9 m length. The vessel consists of a composite cylinder manufactured by wet filament winding of thin-ply composite bands, bonded to titanium end caps produced by additive manufacturing. The aim was to demonstrate the linerless design concept with a thin-ply composite for the cylinder. The investigation is limited to the internal pressure vessel, while real cryogenic tanks also involve an outer vessel containing vacuum for thermal insulation. Thermal stresses dominate during normal operation (4 bar) and the layup was selected for equal hoop strains in the composite cylinder and end caps during filling with liquid hydrogen. Two vessels were tested in 20 cycles, by filling and emptying with liquid nitrogen to 4 bar, without signs of damage or leakage. Subsequently, one vessel was tested until burst at almost 30 bar.

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Section: Materials and Materials Datamentioning

confidence: 99%