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The Evaluation of Mechanical Properties and Fatigue Life for Domestic 304 Stainless Steel Used as Membrane Material in LNG Storage Tank
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 Title & Authors
The Evaluation of Mechanical Properties and Fatigue Life for Domestic 304 Stainless Steel Used as Membrane Material in LNG Storage Tank
Kim, Hyeong-Sik;
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 Abstract
Mechanical properties of domestic 374 stainless steel have been evaluated fur membrane material used in LNG storage tank. LNG tank is operated around -162. The temperature of membrane depends on LNG level. Accordingly, the membrane material is deteriorated by variation of liquid pressure and temperature. Tensile test and fatigue life test were performed at room temperature and -l62 per code requirements. Especially the biaxial fatigue life test was conducted with shaped membrane sheet at a thermal strain of T=190 The test results obtained with the domestic 304 stainless steel showed better properties compared to the values required by code.
 Keywords
LNG Storage Tank;Membrane;Axial Fatigue;Bending Fatigue;Biaxial Fatigue;
 Language
Korean
 Cited by
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