Evaluating severity of impact damage in CFRP by determining thermal effusivity and diffusivity

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The goal of this study is the analysis of some candidate defect characterization parameters in application to the detection of impact damage in carbon fiber reinforced polymers. It is shown that quantitative evaluation of 'defectivity' aimed to further estimation of material strength, or lifetime, should be done by determining material thermal properties. Experimental results obtained are related to active thermal nondestructive testing of aviation panels with impact damage. The efficiency of some image processing algorithms, such as principal component analysis, Fourier and wavelet transform, has been evaluated. It has been found that the result of image sequence processing should be an image of diffusivity in a two-sided procedure and image of effusivity in a one-sided procedure.

Original languageEnglish
Pages (from-to)251-260
Number of pages10
JournalWSEAS Transactions on Heat and Mass Transfer
Volume9
Issue number1
Publication statusPublished - 2014

Fingerprint

impact damage
carbon fiber reinforced plastics
diffusivity
principal components analysis
carbon fibers
aeronautics
wavelet analysis
image processing
thermodynamic properties
mechanical properties
life (durability)
evaluation
defects
polymers

Keywords

  • Diffusivity
  • Effusivity
  • Heat conduction
  • Image processing
  • Thermal nondestructive testing

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

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abstract = "The goal of this study is the analysis of some candidate defect characterization parameters in application to the detection of impact damage in carbon fiber reinforced polymers. It is shown that quantitative evaluation of 'defectivity' aimed to further estimation of material strength, or lifetime, should be done by determining material thermal properties. Experimental results obtained are related to active thermal nondestructive testing of aviation panels with impact damage. The efficiency of some image processing algorithms, such as principal component analysis, Fourier and wavelet transform, has been evaluated. It has been found that the result of image sequence processing should be an image of diffusivity in a two-sided procedure and image of effusivity in a one-sided procedure.",
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