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

摘要: Abstract An experimental design based on representative sample is described in order to reproduce the detachment and deformation of inner polymer layer (called liner) hyperbaric hydrogen storage vessels during emptying step. It first step a better understanding mechanisms involved creation liner collapse. Results showed that hydraulic testing machine fitted with pressure chamber enables create collapse small samples by explosive decompression experiments. Tomographic observations have revealed appears at liner/composite interface areas are not sufficiently bonded, nor consistently. Determination amplitudes, assessed tomography, has underlined that, under some specific conditions, permanent even when completely desorbed from sample. In addition collapses, composite cracks were also highlighted.