국부 부식을 가지는 심해저 파이프라인의 구조응답에 대한 전산 해석적 연구

• Published in: Han-guk haeyang gonghak hoeji (Online) Vol. 29; no. 1; pp. 100 - 110
• Main Authors: 최광호(Kwang-Ho Choi), 이치승(Chi-Seung Lee), 유동만(Dong-Man Ryu), 구본용(Bon-Yong Koo), 송준규(Joon-Kyu Song), 이제명(Jae-Myung Lee)
• Format: Journal Article
• Language: Korean
• Published: 한국해양공학회 2015
• Subjects: 해양공학; Burst pressure 파손 압력; Corrosion 부식; Subsea pipeline 심해저 파이프라인; Fitniess-for-service assessment 사용적합성평가; Finite element Analysis 유한요소해석
• ISSN: 1225-0767; 2287-6715

To meet the increasing demand for energy around the world, offshore and subsea energy development is constantly being conducted. This trend is accompanied by an increasing demand for pipeline installation, which brings numerous problems, including those related to accessibility, high pressure, and corrosion. Among these, corrosion is a primary factor in pipeline fractures, and can cause severe environmental and industrial damage. Hence, accurate corrosion assessment for corroded pipelines is very important. For this reason, the present study investigated the mechanical behavior of an idealized corroded subsea pipeline with an internal/external pressure load using the commercial FEA code ABAQUS. Then, the analysis result was compared with corrosion assessment codes such as ASME B31G, DNV RP F101, ABS. Finally, a fitness-for-service assessment was conducted.