CALCULATION OF STRESSES AND SLIP IN STRUCTURAL LAYERS OF UNBONDED FLEXIBLE PIPES
CALCULATION OF STRESSES AND SLIP IN STRUCTURAL LAYERS OF UNBONDED FLEXIBLE PIPES
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DOI：
10.1115/1.3257019
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发表时间：
1987-08
影响因子：
1.6
通讯作者：
J. Féret;C. Bournazel
中科院分区：
文献类型：
--
作者：
J. Féret;C. Bournazel
本文研究了用于海上立管的高压无粘结柔性钢管的性能。它主要关注管道内部结构的行为。一种理论方法允许建立简单的公式来评估：应力，以及由于轴对称载荷引起的层间接触压力；弯曲应力；由于弯曲引起的层间相对滑移。这是评估柔性管道预期寿命的第一步。必须通过试验结果确定摩擦磨损因素来完成。
This paper deals with the behavior of high-pressure unbonded flexible steel pipes which can be used as risers in offshore applications. It concerns primarily the behavior of the internal structure of the pipe. A theoretical approach allows to establish simple formulas for evaluating: the stresses, and the contact pressures between layers due to axisymmetrical loads; the stresses due to bending; the relative slip between layers due to bending. This is a first step towards the evaluation of the life expectancy of flexible pipes. It must be completed by the determination of friction and wear factors through test results.