Computational Analysis of Structural Behavior of Subsea Pipelines with Local Corrosion

국부 부식을 가지는 심해저 파이프라인의 구조응답에 대한 전산 해석적 연구

  • Received : 2014.05.14
  • Accepted : 2015.01.12
  • Published : 2015.02.28


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.


Corrosion;Subsea pipeline;Fitniess-for-service assessment;Finite element Analysis;Burst pressure


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