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http://dx.doi.org/10.7234/composres.2022.35.6.425

High Temperature Tensile Stress Behavior of Hydrogen Vessel Composite Materials for Hydrogen Fuel Cell Bus  

Hyunseok, Yang (Center for Advanced Materials & Processing, Institute for Advanced Engineering)
Woo-Chul, Jung (Center for Advanced Materials & Processing, Institute for Advanced Engineering)
Kwang Bok, Shin (Department of Mechanical Engineering, Hanbat National University)
Man-Sik, Kong (Center for Advanced Materials & Processing, Institute for Advanced Engineering)
Publication Information
Composites Research / v.35, no.6, 2022 , pp. 425-430 More about this Journal
Abstract
In this study, the mechanical properties of the pressure vessel composite exposed to the thermal environment were evaluated to establish the standard for high temperature static pressure test of the pressure vessel for hydrogen bus. As the tensile strength of the composite material approaches the glass transition temperature of the epoxy resin, the strength decreases due to the deterioration of the epoxy resin. In addition, it was confirmed that the tensile strength increased again due to the post-curing of the epoxy resin during long-term exposure. Therefore, the accelerated stress rupture test conditions of the pressure vessel for the hydrogen bus should be set based on the epoxy resin properties of the carbon fiber composite material.
Keywords
Composite Pressure Vessel; Hydrogen Fuel Cell Bus; High Temperature Static Pressure Test; Thermal Environments; Tensile Strength;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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