Abstract: A wide-temperature-range uniaxial and biaxial compression test device in a high-pressure hydrogen environment is provided. An upper computer is interacted with a temperature sensor, a gas pressure sensor, test pressure sensors, displacement sensors, an oxygen/hydrogen concentration monitor, a hydrogen filling system, a vacuum extraction system, a DIC test system, and the other components. The upper computer is used to achieve high-pressure hydrogen environment wide-temperature-range uniaxial and biaxial compression test based on different test modes. Tested engineering stress-strain data is processed to obtain real stress-strain data of rubber, and then the real stress-strain data is processed through a corresponding database to screen out a constitutive model capable of best characterizing the nonlinearity of the rubber specimen.

Abstract: Disclosed is an anti-leakage device for a hydrogen storage container. A sealing assembly is connected to a right side of a tank body of an anti-leakage device, an impurity removing assembly is connected to a lower side of the tank body, and the impurity removing assembly is connected to the sealing assembly. By adopting the technical solution above, if the leakage occurs from the hydrogen storage container, hydrogen leaks into an inner cavity of the tank body, and an anti-leakage effect is achieved by intercepting and collecting the hydrogen. With the increase of the amount of hydrogen collected in the inner cavity of the tank body, an air pressure in the tank body increases, and a high-pressure gas pushes a first linkage block and a sealing sleeve to move to the right, making the contact between the sealing sleeve and a first cylinder closer.