Mechanical Testing of Polymers in Pressurized Hydrogen: Tension, Creep and Ductile Fracture

摘要: The paper aims at characterizing some key features of the mechanical behavior two semi-crystalline polymers in weakly pressurized hydrogen. opportunity to use hydrogen as an alternative energy strengthens need for reliable data on possible coupling effects between gas diffusion and properties, especially safe design purpose. However, such have not been really quantified polymers. In present study, a hydraulic testing machine has fitted with pressure chamber, three major aspects investigated polyethylene polyamide 11: monotonic tension, long-term creep (based time-temperature superposition principle) ductile fracture (evaluated from essential work method). Suitable protocols defined take into account specificity like temperature history dependence saturation kinetics sample.