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首页> 外文会议>ASME international conference on ocean, offshore and arctic engineering >A NUMERICAL-EXPERIMENTAL APPROACH OF INDENTATION PROBLEM-PART II: FORCE-DENT RESPONSE OF POLYMERIC COATED STEEL PIPES
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A NUMERICAL-EXPERIMENTAL APPROACH OF INDENTATION PROBLEM-PART II: FORCE-DENT RESPONSE OF POLYMERIC COATED STEEL PIPES

机译：压痕问题的数字实验方法-第二部分：聚合物涂层钢管的力-齿响应

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Accidents by trawling impact have the potential of environmental consequences, in terms of safety, monetary values and reputation. Aware of this situation a technology development plan on "Pipeline subject to high interference loads" has been established at STATOIL in close collaboration with GASSCO. The overall achievement is to adapt and introduce more reliable assessment methods in the load and response of pipelines under a trawling impact scenario. Polymeric coating systems have been manly designed and used as thermal isolating material for flow assurance; and little attention has been addressed to mechanical benefits to dissipate energy by large deformation. This property is of special interest to handle impact events typically found during the trawl board impact scenario. The experimental results show the beneficial effect of polymeric coating to protect the steel pipe against indentation when compared to an uncoated system. The results presented in this work focus on new developed analytical expressions to predict the force-dent response of polymeric coated steel pipes using a numerical-experimental research methodology. The proposed equations are validated against experimental tests and the findings indicate fairly good predictions.
机译：在安全，金钱价值和声誉方面，拖网造成的事故具有潜在的环境后果。意识到这种情况，STATOIL与GASSCO密切合作，制定了“管道承受高干扰负荷”的技术开发计划。总的成果是在拖网影响的情况下，在管道的负荷和响应中采用和引入更可靠的评估方法。聚合物涂层系统已经过人工设计，并用作隔热材料以确保流量;对于通过大变形消散能量的机械益处，人们几乎没有关注。此属性对于处理通常在拖网板撞击情况下发现的撞击事件特别有用。实验结果表明，与未涂层的系统相比，聚合物涂层可以保护钢管免于压痕。在这项工作中提出的结果集中在新开发的分析表达式上，以使用数值实验研究方法来预测聚合物涂层钢管的力-凹痕响应。所提出的方程式已针对实验测试进行了验证，研究结果表明预测相当不错。

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