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Analysis of strain transfer between surface-bonded plastic optical fibers and concrete

机译:表面粘结塑料光纤与混凝土之间的应变传递分析

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摘要

Plastic optical fibers (POFs) have many advantages compared with conventional optical fibers for sensing and monitoring applications in civil engineering. The monitoring capability of POF sensors depends on the strain transfer characteristics between POFs and host materials to a great extent. Theoretical analysis is performed to develop the strain transfer relationship between surface-bonded POFs and concrete. Besides, finite-element method is conducted for verification, and the main influencing parameters are studied respectively. The calculated results demonstrate that the effect of strain transfer is more significant when the POF is bonded close to the surface of concrete and the length of the adhesive layer ought to exceed 300 mm simultaneously, and the width, thickness, and shape of the adhesive layer have slight impact on the strain transfer.
机译:与传统的光纤相比,塑料光纤(POF)在土木工程中的传感和监视应用具有许多优势。 POF传感器的监视能力在很大程度上取决于POF与主体材料之间的应变传递特性。进行了理论分析,以开发表面粘结的POF与混凝土之间的应变传递关系。此外,采用有限元方法进行验证,并分别研究了主要影响参数。计算结果表明,当POF粘结在混凝土表面附近且胶粘层的长度应同时超过300 mm以及胶粘层的宽度,厚度和形状时,应变传递的影响更为显着。对应变传递有轻微影响。

著录项

  • 来源
    《Optical engineering》 |2019年第2期|027107.1-027107.8|共8页
  • 作者单位

    Hohai University, State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing, China,Hohai University, College of Water Conservancy and Hydropower Engineering, Nanjing, China;

    Hohai University, State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing, China,Hohai University, College of Water Conservancy and Hydropower Engineering, Nanjing, China;

    Hohai University, State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing, China,Hohai University, College of Water Conservancy and Hydropower Engineering, Nanjing, China;

    Hohai University, State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing, China,Hohai University, College of Water Conservancy and Hydropower Engineering, Nanjing, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    plastic optical fiber; strain transfer; structural health monitoring;

    机译:塑料光纤应变传递结构健康监测;

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