海上风电钢管桩石墨烯光敏增强纤维保护层力学性能
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浙江华东工程咨询有限公司

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P752 ?

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Mechanical Properties of Graphene Photosensitive Reinforced Fiber Protective Layer for Steel Pipe Pile in Offshore Wind Farm
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Zhejiang Huadong Engineering Consulting Co. Ltd

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    摘要:

    为了改善海上风机浪溅区钢管桩表面涂层的力学性能,设计了一种石墨烯光敏复合增强纤维保护层.建立数值模型研究了冲击荷载和温度荷载作用下石墨烯光敏复合增强纤维保护层的力学性能,对保护层的中间层分别采用增强纤维树脂复合带和环氧玻璃钢时保护层的力学性能进行了对比.研究结果表明:增强纤维树脂复合带的力学性能优于环氧玻璃钢,其防冲击能力更好;增强纤维树脂复合带和环氧玻璃钢在相同冲击荷载作用下在与基体钢材连接的界面上产生的剪切力相当;增强纤维树脂复合带抵抗温度应力的能力优于环氧玻璃钢,在反复温度应力作用下,环氧玻璃钢更容易发生破坏脱落.

    Abstract:

    In order to improve the mechanical properties of steel pipe pile surface coating in the splash zone of offshore wind turbine, a graphene photosensitive composite reinforced fiber protective layer was designed. A numerical model was established to study the mechanical properties of graphene photosensitive composite reinforced fiber protective layer under impact load and temperature load. The mechanical properties of protective layer were compared when reinforced fiber resin composite tape and epoxy FRP were used as the middle layer respectively. The results show that the mechanical properties of reinforced fiber resin composite tape material are better than those of epoxy FRP, and a better impact resistance is observed; Under the same impact load, the shear force generated at the interface connected with the base steel for both materials are the same; The ability of reinforced fiber resin composite tape material to resist temperature stress is better than that of epoxy FRP. Under the action of cyclic temperature stress, epoxy FRP is more prone to damage and fall off.

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  • 收稿日期:2022-03-23
  • 最后修改日期:2022-04-03
  • 录用日期:2022-04-13
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