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LNG 선박용 알루미늄 합금 소재의 정적 및 피로 강도 평가
윤용근 ( Yong Keun Yoon ),김재훈 ( Jae Hoon Kim ),김우중 ( Kye Ho Baik ),백경호 ( Kye Ho Baik ),박창현 ( Chang Hyun Park ) 한국안전학회(구 한국산업안전학회) 2013 한국안전학회지 Vol.28 No.2
Liquefied Natural Gas is liquefied at the condition of atmosphere pressure and cryogenic temperature. LNG is exposed very long time under the cryogenic temperature and high pressure, and it is very important to retain the structural safety in this envelopment. Until now, the material which are composing the storage tank of LNG ship has experimented at room temperature, so it is not enough to apply for the design at the cryogenic temperature. The purposes of this study are investigated mechanical properties for aluminum alloy. To evaluate tensile and fatigue test for aluminum alloy, it was considering static and fatigue conditions at room and cryogenic temperature. S-N curves were designed at both temperature respectively. Also, P-S-N curve was performed statistical method by JSME-S002.