Abstract
Abstract - In this study, the strength safety for 110 liter hydrogen fuel storage tank with 70MPa filling pres-sure has been analyzed using a FEM technique. The strength safety of a composite fuel tank in which is fab-ricated by an aluminum liner of 6061-T6 and carbon fiber wound composite layers of T800-24K and T700-12K of Toray, and MR60H-24P of Mitsubishi Ray has been investigated based on the criterion of a strength safety of US DOT-CFFC and Korean Standard. The FEM computed results on the strength safety of 70MPa hydrogen gas tank showed that the hydrogen fuel storage tank in which is fabricated by T800-24K and T700-12K of Toray, and MR60H-24P of Mitsubishi Ray is safe because those two carbon fibers have very sim-ilar material properties. But, the composite storage tank with a filling pressure of 70MPa in which is fabricated by T700-12K of Toray may not guaranty the strength safety, and thus this study recommends a composite hy-drogen fuel tank under 60MPa.Key words : strength safety, hydrogen gas fuel tank, composite material, aluminum liner
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