一种用于复合材料结构健康监测的喷涂式碳纳米管人工神经元应变传感器。

A Spray-On Carbon Nanotube Artificial Neuron Strain Sensor for Composite Structural Health Monitoring.

作者信息

Choi Gyeongrak, Lee Jong Won, Cha Ju Young, Kim Young-Ju, Choi Yeon-Sun, Schulz Mark J, Moon Chang Kwon, Lim Kwon Tack, Kim Sung Yong, Kang Inpil

机构信息

Manufacturing Automation R & BD Group, Korea Institute of Industrial Technology, Chonan 143-701, Korea.

Department of Architectural Engineering, Namseoul University, Cheonan 331-707, Korea.

出版信息

Sensors (Basel). 2016 Jul 26;16(8):1171. doi: 10.3390/s16081171.

DOI:10.3390/s16081171

PMID:27472332

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5017337/

Abstract

We present a nanocomposite strain sensor (NCSS) to develop a novel structural health monitoring (SHM) sensor that can be easily installed in a composite structure. An NCSS made of a multi-walled carbon nanotubes (MWCNT)/epoxy composite was installed on a target structure with facile processing. We attempted to evaluate the NCSS sensing characteristics and benchmark compared to those of a conventional foil strain gauge. The response of the NCSS was fairly good and the result was nearly identical to the strain gauge. A neuron, which is a biomimetic long continuous NCSS, was also developed, and its vibration response was investigated for structural damage detection of a composite cantilever. The vibration response for damage detection was measured by tracking the first natural frequency, which demonstrated good result that matched the finite element (FE) analysis.

摘要

我们提出了一种纳米复合应变传感器（NCSS），以开发一种新型的结构健康监测（SHM）传感器，该传感器可轻松安装在复合结构中。由多壁碳纳米管（MWCNT）/环氧树脂复合材料制成的NCSS通过简便的工艺安装在目标结构上。我们试图评估NCSS的传感特性，并与传统箔式应变片进行比较。NCSS的响应相当良好，结果与应变片几乎相同。还开发了一种仿生长连续NCSS的神经元，并研究了其振动响应以用于复合悬臂梁的结构损伤检测。通过跟踪第一固有频率来测量损伤检测的振动响应，其结果与有限元（FE）分析相匹配，效果良好。