Abst'/> Reliability-based safety factor for metallic strip flexible pipe subjected to external pressure
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Reliability-based safety factor for metallic strip flexible pipe subjected to external pressure

机译：金属带挠性管在外部压力下基于可靠性的安全系数

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AbstractReliability-based safety factors for metallic strip flexible pipes(MSFP) subjected to external pressure are calibrated in this paper. The partial safety factors of such pipes are obtained by introducing a target reliability index and using a combination of Monte-Carlo simulation and FORM. The relationship between the safety factors and the coefficient of variation for key basic variables as well as the impact of different distribution types for both the resistance and load effect parameters on the calibrated results are investigated. Recommended design safety factor for MSFP is given similar to the widely used design safety factor for conventional metallic pipes. The calibration process presented in this paper is relatively easy to understand and to carry out. This also applies to cases with multiple components and even requiring complex iterations in relation to the mechanical model. The results obtained here can provide some guidance in connection with manufacturing procedures at the initial design stage of the MSFP.Highlights•A calibration process of the reliability-based safety factor which is easy to understand and to carry out is presented.•Reliability-based safety factor for metallic strip flexible pipes(MSFP) subjected to external pressure is calibrated.•Recommended design safety factor for MSFP is given in this paper.•The impact of different distribution types for the resistance and load effect on the calibrated results are studied.
机译： 摘要 在外部压力下，对金属条形挠性管（MSFP）的基于可靠性的安全系数进行了校准。通过引入目标可靠性指标并结合使用蒙特卡罗模拟和FORM来获得此类管道的部分安全系数。研究了关键基本变量的安全系数与变异系数之间的关系，以及不同分布类型对阻力和载荷效应参数的影响对校准结果的影响。 MSFP的推荐设计安全系数与常规金属管道广泛使用的设计安全系数相似。本文介绍的校准过程相对容易理解和执行。这也适用于具有多个组件，甚至需要相对于机械模型进行复杂迭代的情况。此处获得的结果可以为MSFP初始设计阶段的制造过程提供一些指导。 突出显示 • 介绍了易于理解和执行的基于可靠性的安全系数的校准过程。 • 金属带的基于可靠性的安全系数校准了承受外部压力的挠性管（MSFP）。 < ce：label>• 本文提供了MSFP的推荐设计安全系数。 • 不同分布类型对电阻的影响研究了载荷和载荷对校准结果的影响。

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