Ultimate load capacity of offshore pipeline with arbitrary shape corrosion defects
Ultimate load capacity of offshore pipeline with arbitrary shape corrosion defects
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DOI：
10.1007/s13344-015-0017-z
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发表时间：
2015-04
影响因子：
1.6
通讯作者：
Yanfei Chen;J. Zhang;Hong Zhang;Xiaoben Liu;Xin Li;Jing Zhou;Jingle Cao
中科院分区：
文献类型：
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作者：
Yanfei Chen;J. Zhang;Hong Zhang;Xiaoben Liu;Xin Li;Jing Zhou;Jingle Cao
提出了内压、轴力和弯矩共同作用下任意腐蚀形状管道极限承载能力的一套广义解。该方程还考虑了管道纵向和周向各向同性和各向异性的材料特性。采用简化的数值方法求解广义表达式。将基于广义解的数值结果与全尺寸实验结果进行了比较。预测结果与实验结果吻合较好。同时，研究了腐蚀形态和腐蚀位置对极限承载能力的影响。
A set of generalized solutions are proposed for estimating ultimate load capacity of pipeline with arbitrary corrosion shapes subjected to combined internal pressure, axial force and bending moment. Isotropic and anisotropic material characteristics in longitudinal and circumferential direction of pipeline are also considered in the proposed equations. Simplified numerical method is used to solve the generalized expressions. The comparisons of numerical results based generalized solutions and full-scale experimental results are carried out. The predicted results agree reasonably well with the experiment results. Meanwhile, the effects of corrosion shapes and locations on the ultimate load capacity are studied.