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Replication of liner collapse phenomenon observed in hyperbaric type IV hydrogen storage vessel by explosive decompression experiments

Julie Pépin 1 Eric Lainé 1 Jean-Claude Grandidier 1 Guillaume Benoit 1 David Mellier 1 Mathilde Weber Christophe Langlois
1 ENDO - ENDOmmagement et durabilité ENDO
Département Physique et Mécanique des Matériaux - Département Physique et Mécanique des Matériaux
Abstract : An experimental design based on representative sample is described in order to reproduce the detachment and deformation of the inner polymer layer (called liner) of hyperbaric hydrogen storage vessels during the emptying step. It is the first step of a better understanding of the mechanisms involved in the creation of a liner collapse. Results showed that a hydraulic testing machine fitted with a pressure hydrogen chamber enables to create a liner collapse on small samples by explosive decompression experiments. Tomographic observations have revealed that the collapse appears at the polymer liner/composite interface in areas that are not sufficiently bonded, nor consistently. Determination of liner collapse amplitudes, assessed by tomography, has underlined that, under some specific conditions, the deformation of the liner is permanent even when hydrogen has completely desorbed from the sample. In addition to liner collapses, composite cracks were also highlighted.
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https://hal.archives-ouvertes.fr/hal-02308763
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Submitted on : Tuesday, October 8, 2019 - 4:58:00 PM
Last modification on : Tuesday, January 11, 2022 - 2:20:02 PM

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Julie Pépin, Eric Lainé, Jean-Claude Grandidier, Guillaume Benoit, David Mellier, et al.. Replication of liner collapse phenomenon observed in hyperbaric type IV hydrogen storage vessel by explosive decompression experiments. International Journal of Hydrogen Energy, Elsevier, 2018, 43 (9), pp.4671-4680. ⟨10.1016/j.ijhydene.2018.01.022⟩. ⟨hal-02308763⟩

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