Relationship between Inspection Time and Frequency Components of Input and Reflected Thermal Waves in Active Thermographic Non-Destructive Inspection

Experiments and numerical simulations for a carbon fiber reinforced plastic specimen were performed to investigate the relationship between the time required for detecting subsurface defects and the frequency components of the thermal waves propagating within the specimen. Experimental results showe...

Full description

Bibliographic Details
Main Authors:	Masashi Ishikawa, Sou Ishihara, Hideo Nishino, Masashi Koyama, Hideyuki Kasano, Hiroshi Hatta, Shin Utsunomiya
Format:	Article
Language:	English
Published:	MDPI AG 2019-09-01
Series:	Proceedings
Subjects:	non-destructive inspection active thermography thermal wave phase carbon fiber reinforced plastic
Online Access:	https://www.mdpi.com/2504-3900/27/1/16

id	doaj-8d7e98d342ca4c63872ae2118b755a23
record_format	Article
spelling	doaj-8d7e98d342ca4c63872ae2118b755a232020-11-25T02:01:02ZengMDPI AGProceedings2504-39002019-09-012711610.3390/proceedings2019027016proceedings2019027016Relationship between Inspection Time and Frequency Components of Input and Reflected Thermal Waves in Active Thermographic Non-Destructive InspectionMasashi Ishikawa0Sou Ishihara1Hideo Nishino2Masashi Koyama3Hideyuki Kasano4Hiroshi Hatta5Shin Utsunomiya6Graduate School of Technology, Industrial and Social Sciences, Tokushima University, Tokushima 770-8506, JapanGraduate School of Technology, Industrial and Social Sciences, Tokushima University, Tokushima 770-8506, JapanGraduate School of Technology, Industrial and Social Sciences, Tokushima University, Tokushima 770-8506, JapanSchool of Science and Engineering, Meisei University, Tokyo 191-8506, JapanDepartment of Civil Engineering, Nihon University, Fukushima 963-8642, JapanJapan Aerospace Exploration Agency, Kanagawa 252-5210, JapanJapan Aerospace Exploration Agency, Kanagawa 252-5210, JapanExperiments and numerical simulations for a carbon fiber reinforced plastic specimen were performed to investigate the relationship between the time required for detecting subsurface defects and the frequency components of the thermal waves propagating within the specimen. Experimental results showed that the required inspection time was shortened by increasing the frequency of the input thermal wave. However, if the attenuation during thermal wave propagation is large enough to render the detection of the thermal wave reflected at the subsurface defect impossible, the inspection time exceeds the time estimated by theoretical calculation.https://www.mdpi.com/2504-3900/27/1/16non-destructive inspectionactive thermographythermal wavephasecarbon fiber reinforced plastic
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Masashi Ishikawa Sou Ishihara Hideo Nishino Masashi Koyama Hideyuki Kasano Hiroshi Hatta Shin Utsunomiya
spellingShingle	Masashi Ishikawa Sou Ishihara Hideo Nishino Masashi Koyama Hideyuki Kasano Hiroshi Hatta Shin Utsunomiya Relationship between Inspection Time and Frequency Components of Input and Reflected Thermal Waves in Active Thermographic Non-Destructive Inspection Proceedings non-destructive inspection active thermography thermal wave phase carbon fiber reinforced plastic
author_facet	Masashi Ishikawa Sou Ishihara Hideo Nishino Masashi Koyama Hideyuki Kasano Hiroshi Hatta Shin Utsunomiya
author_sort	Masashi Ishikawa
title	Relationship between Inspection Time and Frequency Components of Input and Reflected Thermal Waves in Active Thermographic Non-Destructive Inspection
title_short	Relationship between Inspection Time and Frequency Components of Input and Reflected Thermal Waves in Active Thermographic Non-Destructive Inspection
title_full	Relationship between Inspection Time and Frequency Components of Input and Reflected Thermal Waves in Active Thermographic Non-Destructive Inspection
title_fullStr	Relationship between Inspection Time and Frequency Components of Input and Reflected Thermal Waves in Active Thermographic Non-Destructive Inspection
title_full_unstemmed	Relationship between Inspection Time and Frequency Components of Input and Reflected Thermal Waves in Active Thermographic Non-Destructive Inspection
title_sort	relationship between inspection time and frequency components of input and reflected thermal waves in active thermographic non-destructive inspection
publisher	MDPI AG
series	Proceedings
issn	2504-3900
publishDate	2019-09-01
description	Experiments and numerical simulations for a carbon fiber reinforced plastic specimen were performed to investigate the relationship between the time required for detecting subsurface defects and the frequency components of the thermal waves propagating within the specimen. Experimental results showed that the required inspection time was shortened by increasing the frequency of the input thermal wave. However, if the attenuation during thermal wave propagation is large enough to render the detection of the thermal wave reflected at the subsurface defect impossible, the inspection time exceeds the time estimated by theoretical calculation.
topic	non-destructive inspection active thermography thermal wave phase carbon fiber reinforced plastic
url	https://www.mdpi.com/2504-3900/27/1/16
work_keys_str_mv	AT masashiishikawa relationshipbetweeninspectiontimeandfrequencycomponentsofinputandreflectedthermalwavesinactivethermographicnondestructiveinspection AT souishihara relationshipbetweeninspectiontimeandfrequencycomponentsofinputandreflectedthermalwavesinactivethermographicnondestructiveinspection AT hideonishino relationshipbetweeninspectiontimeandfrequencycomponentsofinputandreflectedthermalwavesinactivethermographicnondestructiveinspection AT masashikoyama relationshipbetweeninspectiontimeandfrequencycomponentsofinputandreflectedthermalwavesinactivethermographicnondestructiveinspection AT hideyukikasano relationshipbetweeninspectiontimeandfrequencycomponentsofinputandreflectedthermalwavesinactivethermographicnondestructiveinspection AT hiroshihatta relationshipbetweeninspectiontimeandfrequencycomponentsofinputandreflectedthermalwavesinactivethermographicnondestructiveinspection AT shinutsunomiya relationshipbetweeninspectiontimeandfrequencycomponentsofinputandreflectedthermalwavesinactivethermographicnondestructiveinspection
_version_	1724959191160848384

Relationship between Inspection Time and Frequency Components of Input and Reflected Thermal Waves in Active Thermographic Non-Destructive Inspection

Similar Items