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Effective of Stress Ratio on the Fatigue Strength of Welding Part in the LNG Containment System
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LNG 내조시스템 소재의 용접부 피로강도 평가

논문 기본 정보

Type
Proceeding
Author
Journal
The Korean Society of Mechanical Engineers 대한기계학회 춘추학술대회 대한기계학회 2009년도 추계학술대회 강연 및 논문 초록집
Published
2009.11
Pages
201 - 206 (6page)

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Effective of Stress Ratio on the Fatigue Strength of Welding Part in the LNG Containment System
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Research history (2)

2009

Effective of Stress Ratio on the Fatigue Strength of Welding Part in the LNG Containment System
Hee-Jin Shim ,  Il-Heon Jeoun ,  Jung-Kyu Kim 대한기계학회 춘추학술대회 2009.11 Proceeding

2007

Evaluation of the Fatigue Strength and the Mechanical Properties for Cargo Containment System in LNG Ship
Hee-Jin Shim ,  Min-Tea Kim ,  In-Su Yoon and others 2 대한기계학회 춘추학술대회 2007.05 Proceeding
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Abstract· Keywords

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The membrane type LNG(Liquefied Natural Gas) cargo containment system is a special design structure for the large deformation behavior at LNG temperature(-162℃). The design of membrane is required great confidence so that membrane can plat role in the tightness of flammable fluid storing. LNG cargo containment is loaded and unloaded LNG between twice and five times in a week. During this process, the membrane has exhibited at large deformation behavior due to the variation of temperature and pressure to the self weight. Therefore these phenomena should be considered to improve the safety and reliability of the fatigue life.
In this study, the fatigue tests of lap and butt weld joints of membrane type LNG ship were carried out and effective on stress ratio was performed in order to improve fatigue life at LNG temperature. These results is guideline for inspection for membrane type LNG ship.
#Butt welding(맞대기 용접) #Lab-joint welding(겹용접) #Cryogenic(극저온) #Stress ratio(응력비) #Fatigue strength(피로강도)

Contents

Abstract
1. 서론
2. 실험 방법
3. 실험 결과 및 고찰
4. 결론
후기
참고문헌

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UCI(KEPA) : I410-ECN-0101-2009-550-019127111