Defect depth measurement of carbon fiber reinforced polymers by thermography

Terry Y. Chen, Jian Lun Chen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Carbon fiber reinforced polymers has been widely used in all kind of the industries. However the internal defects can result in the change of material or mechanical properties, and cause safety problem. In this study, step-heating thermography is employed to measure the time series temperature distribution of composite plate. The principle of heat conduction in a flat plate with defect inside is introduced. A temperature separation criterion to determine the depth of defect inside the specimen is obtained experimentally. Applying this criterion to CFRP specimens with embedded defects, the depth of embedded defect in CFRP can be determined quite well from the time series thermograms obtained experimentally.

Original languageEnglish
Title of host publicationSeventh International Symposium on Precision Mechanical Measurements
EditorsLiandong Yu
PublisherSPIE
ISBN (Electronic)9781510601673
DOIs
Publication statusPublished - 2016 Jan 1
Event7th International Symposium on Precision Mechanical Measurements, ISPMM 2015 - Xia'men, China
Duration: 2015 Aug 82015 Aug 12

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9903
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

Other7th International Symposium on Precision Mechanical Measurements, ISPMM 2015
CountryChina
CityXia'men
Period15-08-0815-08-12

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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