Study on the Inwall Crack Extension and Fatigue Life Evaluation for Deep-sea Steel Catenary Riser under Wave and Current Action
Aimed at deep-sea steel catenary risers(SCRs) transporting supercritical or dense CO2,this paper uses the macroscopic pipeline-transporting finite element model and the microscopic pipewall crack growth model to numerically simulate corrosive-inwall-defect-induced crack extension along radial direction for the deep-sea riser which is subjected to wave and current loads.Meanwhile,based on linear elastic fracture mechanics and fatigue crack extension theory,the effect of wave height on the fatigue life of the pipewall at touchdown zone is discussed.The above-mentioned study in this paper is expected to give a good reference to the similar study for oil&gas SCRs.
deep-sea steel catenary riser crack extension fatigue life touchdown zone transportation for CO2
Bingjun Si Qiao Jin
Vibration & strength testing center Co, Ltd, Dalian University of Technology, Dalian, China School of Civil Engineering, Shenyang Jianzhu University, Shenyang, China
国际会议
郑州
英文
358-361
2012-09-22（万方平台首次上网日期，不代表论文的发表时间）