• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国卫生研究院文献>Sensors (Basel Switzerland) >An Experimental Study on Static and Dynamic Strain Sensitivity of Embeddable Smart Concrete Sensors Doped with Carbon Nanotubes for SHM of Large Structures
【2h】

An Experimental Study on Static and Dynamic Strain Sensitivity of Embeddable Smart Concrete Sensors Doped with Carbon Nanotubes for SHM of Large Structures

机译：碳纳米管嵌入的嵌入式智能混凝土传感器对大型结构SHM的静态和动态应变敏感性实验研究。

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务，本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文，但由于OA文献来源多样且变更频繁，仍可能出现获取不到、文献不完整或与标题不符等情况，如果获取不到我们将提供退款服务。请知悉。
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The availability of new self-sensing cement-based strain sensors allows the development of dense sensor networks for Structural Health Monitoring (SHM) of reinforced concrete structures. These sensors are fabricated by doping cement-matrix mterials with conductive fillers, such as Multi Walled Carbon Nanotubes (MWCNTs), and can be embedded into structural elements made of reinforced concrete prior to casting. The strain sensing principle is based on the multifunctional composites outputting a measurable change in their electrical properties when subjected to a deformation. Previous work by the authors was devoted to material fabrication, modeling and applications in SHM. In this paper, we investigate the behavior of several sensors fabricated with and without aggregates and with different MWCNT contents. The strain sensitivity of the sensors, in terms of fractional change in electrical resistivity for unit strain, as well as their linearity are investigated through experimental testing under both quasi-static and sine-sweep dynamic uni-axial compressive loadings. Moreover, the responses of the sensors when subjected to destructive compressive tests are evaluated. Overall, the presented results contribute to improving the scientific knowledge on the behavior of smart concrete sensors and to furthering their understanding for SHM applications.
机译：新的基于水泥的自感应应变传感器的问世使密集型传感器网络得以发展，用于钢筋混凝土结构的结构健康监测（SHM）。这些传感器是通过用导电填料（例如多壁碳纳米管（MWCNT））掺杂水泥基材料制成的，并且可以在铸造之前嵌入到由钢筋混凝土制成的结构元件中。应变感测原理基于多功能复合材料，当变形时会输出可测量的电气性能变化。作者之前的工作致力于SHM中的材料制造，建模和应用。在本文中，我们研究了带有和不带有聚集体以及具有不同MWCNT含量的几种传感器的性能。通过在准静态和正弦扫描动态单轴压缩载荷下的实验测试，研究了传感器的应变灵敏度（单位电阻率的分数变化）及其线性。此外，还对传感器进行破坏性压缩测试时的响应进行了评估。总体而言，提出的结果有助于提高关于智能混凝土传感器性能的科学知识，并进一步增进其对SHM应用的理解。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号