Thermo-mechanical behavior of polyethylene under mechanical loads at cryogenic and elevated temperatures

For the design of a polymer liner in a high-pressure vessel, experimental and numerical analyses of high-density polyethylene (HDPE) are conducted under tensile and compressive loads. The effect of temperature on the mechanical behavior of the HDPE is investigated experimentally in a range of 223K to 373K. For tensile and compression tests, specimens are cut out of a prototype polymer liner, which is to be developed for automobile high-pressure...