Instrumented tests on composite pressure vessels (type IV) under internal water pressure

Much work has already been done on Type IV high-pressure vessels, both from an experimental and numerical point of view. The prediction the maximum pressure before bursting, effect thermal cycles, defect damage tolerance, fire resistance, liner collapse are topics generally numerically studied at scale samples. In these previous works, passage specimen to structure is not fully validated by comparing models with measurements tank. However, this correlation simulation requires collecting a large amount information, often combining several metrological studies. work, non-destructive instrumented tests vessel subjected internal were performed coupled optical (3D displacement fields) acoustic emission understand kinetics. Three load-unload speeds 1, 10, 100 MPa/min up 87.5 MPa pressure, followed cyclic test (160 cycles). results obtained show interest coupling field evaluate behavior vessels compare them models.