Nondestructive Evaluation of Carbon Fiber Reinforced Polymer Composites Using Reflective Terahertz Imaging

Nondestructive Evaluation of Carbon Fiber Reinforced Polymer Composites Using Reflective Terahertz Imaging

Terahertz (THz) time-domain spectroscopy (TDS) imaging is considered a nondestructive evaluation method for composite materials used for examining various defects of carbon fiber reinforced polymer (CFRP) composites and fire-retardant coatings in the reflective imaging modality. We demonstrate that...

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Main Authors: Jin Zhang, Wei Li, Hong-Liang Cui, Changcheng Shi, Xiaohui Han, Yuting Ma, Jiandong Chen, Tianying Chang, Dongshan Wei, Yumin Zhang, Yufeng Zhou
Format: Article
Language:English
Published: MDPI AG 2016-06-01
Series:Sensors
Subjects:
carbon fiber reinforced polymer composites
fire-retardant coatings
nondestructive evaluation
coating debonding
terahertz time-domain spectroscopy imaging
Online Access:http://www.mdpi.com/1424-8220/16/6/875
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spelling doaj-0bd357d7dbab47dcb650f3f6368b190c2020-11-24T21:53:28ZengMDPI AGSensors1424-82202016-06-0116687510.3390/s16060875s16060875Nondestructive Evaluation of Carbon Fiber Reinforced Polymer Composites Using Reflective Terahertz ImagingJin Zhang0Wei Li1Hong-Liang Cui2Changcheng Shi3Xiaohui Han4Yuting Ma5Jiandong Chen6Tianying Chang7Dongshan Wei8Yumin Zhang9Yufeng Zhou10College of Instrumentation and Electrical Engineering, Jilin University, Changchun 130061, ChinaResearch Center for Terahertz Technology, Key Laboratory of Multi-scale Manufacturing Technology, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, ChinaCollege of Instrumentation and Electrical Engineering, Jilin University, Changchun 130061, ChinaResearch Center for Terahertz Technology, Key Laboratory of Multi-scale Manufacturing Technology, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, ChinaCollege of Instrumentation and Electrical Engineering, Jilin University, Changchun 130061, ChinaCollege of Instrumentation and Electrical Engineering, Jilin University, Changchun 130061, ChinaCollege of Instrumentation and Electrical Engineering, Jilin University, Changchun 130061, ChinaCollege of Instrumentation and Electrical Engineering, Jilin University, Changchun 130061, ChinaResearch Center for Terahertz Technology, Key Laboratory of Multi-scale Manufacturing Technology, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, ChinaNational Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin 150080, ChinaNational Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin 150080, ChinaTerahertz (THz) time-domain spectroscopy (TDS) imaging is considered a nondestructive evaluation method for composite materials used for examining various defects of carbon fiber reinforced polymer (CFRP) composites and fire-retardant coatings in the reflective imaging modality. We demonstrate that hidden defects simulated by Teflon artificial inserts are imaged clearly in the perpendicular polarization mode. The THz TDS technique is also used to measure the thickness of thin fire-retardant coatings on CFRP composites with a typical accuracy of about 10 micrometers. In addition, coating debonding is successfully imaged based on the time-delay difference of the time-domain waveforms between closely adhered and debonded sample locations.http://www.mdpi.com/1424-8220/16/6/875carbon fiber reinforced polymer compositesfire-retardant coatingsnondestructive evaluationcoating debondingterahertz time-domain spectroscopy imaging
collection DOAJ
language English
format Article
sources DOAJ
author Jin Zhang
Wei Li
Hong-Liang Cui
Changcheng Shi
Xiaohui Han
Yuting Ma
Jiandong Chen
Tianying Chang
Dongshan Wei
Yumin Zhang
Yufeng Zhou
spellingShingle Jin Zhang
Wei Li
Hong-Liang Cui
Changcheng Shi
Xiaohui Han
Yuting Ma
Jiandong Chen
Tianying Chang
Dongshan Wei
Yumin Zhang
Yufeng Zhou
Nondestructive Evaluation of Carbon Fiber Reinforced Polymer Composites Using Reflective Terahertz Imaging
Sensors
carbon fiber reinforced polymer composites
fire-retardant coatings
nondestructive evaluation
coating debonding
terahertz time-domain spectroscopy imaging
author_facet Jin Zhang
Wei Li
Hong-Liang Cui
Changcheng Shi
Xiaohui Han
Yuting Ma
Jiandong Chen
Tianying Chang
Dongshan Wei
Yumin Zhang
Yufeng Zhou
author_sort Jin Zhang
title Nondestructive Evaluation of Carbon Fiber Reinforced Polymer Composites Using Reflective Terahertz Imaging
title_short Nondestructive Evaluation of Carbon Fiber Reinforced Polymer Composites Using Reflective Terahertz Imaging
title_full Nondestructive Evaluation of Carbon Fiber Reinforced Polymer Composites Using Reflective Terahertz Imaging
title_fullStr Nondestructive Evaluation of Carbon Fiber Reinforced Polymer Composites Using Reflective Terahertz Imaging
title_full_unstemmed Nondestructive Evaluation of Carbon Fiber Reinforced Polymer Composites Using Reflective Terahertz Imaging
title_sort nondestructive evaluation of carbon fiber reinforced polymer composites using reflective terahertz imaging
publisher MDPI AG
series Sensors
issn 1424-8220
publishDate 2016-06-01
description Terahertz (THz) time-domain spectroscopy (TDS) imaging is considered a nondestructive evaluation method for composite materials used for examining various defects of carbon fiber reinforced polymer (CFRP) composites and fire-retardant coatings in the reflective imaging modality. We demonstrate that hidden defects simulated by Teflon artificial inserts are imaged clearly in the perpendicular polarization mode. The THz TDS technique is also used to measure the thickness of thin fire-retardant coatings on CFRP composites with a typical accuracy of about 10 micrometers. In addition, coating debonding is successfully imaged based on the time-delay difference of the time-domain waveforms between closely adhered and debonded sample locations.
topic carbon fiber reinforced polymer composites
fire-retardant coatings
nondestructive evaluation
coating debonding
terahertz time-domain spectroscopy imaging
url http://www.mdpi.com/1424-8220/16/6/875
work_keys_str_mv AT jinzhang nondestructiveevaluationofcarbonfiberreinforcedpolymercompositesusingreflectiveterahertzimaging
AT weili nondestructiveevaluationofcarbonfiberreinforcedpolymercompositesusingreflectiveterahertzimaging
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