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Embedding optical Fiber Bragg Grating (FBG) sensors in 3D printed casings

机译：将光纤布拉格光栅（FBG）传感器嵌入3D打印外壳中

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摘要

This paper aims to numerical and experimentally study and propose Fiber Bragg Grating (FBG) sensors embedded in 3D printed casings. 3D printed casings offer design freedom, enabling strain measurement of structural systems with complex configuration, and, at low cost due to its easiness to manufacture. The casings were first numerically modeled using a commercial finite element software. After the casing was conceptualized to the user needs, they were printed and introduced in two different applications. Assessing the behavior of 3D printed casings in realistic applications has been explored only by few authors, which is the novelty introduced herein. In both applications, the casings' behavior was analyzed numerical and experimentally. The experimental results were compared with electrical strain gauges. As expected from the numerical analysis results, a calibration factor was determined to accurately predict strain using the embedded FBG sensors. A comprehensive discussion is presented on the topic of calibration factors defined numerical and experimentally.
机译：本文旨在进行数值和实验研究，并提出嵌入3D打印外壳的光纤布拉格光栅（FBG）传感器。 3D打印外壳提供了设计自由度，可以测量具有复杂配置的结构系统的应变，并且由于易于制造，因此成本较低。首先使用商业有限元软件对套管进行数值建模。根据用户需求对外壳进行概念化后，将其印刷并引入两种不同的应用程序中。仅在少数作者中探讨了评估3D打印外壳在实际应用中的行为，这是本文介绍的新颖之处。在这两种应用中，均通过数值和实验分析了套管的性能。将实验结果与电应变仪进行了比较。正如数值分析结果所预期的那样，使用嵌入式FBG传感器确定了校准因子以准确预测应变。在数值和实验上定义的校准因子主题上进行了全面的讨论。

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  • 来源
    《Optical fiber technology》 |2019年第12期|102015.1-102015.7|共7页
  • 作者

  • 作者单位

    Univ Estadual Campinas Dept Struct Engn Campinas SP Brazil;

    Univ Estadual Campinas Inst Phys Campinas SP Brazil;

  • 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

    Casing; 3D printing; Fiber Bragg Grating;

    机译：套管;3D打印光纤布拉格光栅;

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