How to reveal subsurface defects in Kevlar® composite materials after an impact loading using infrared vision and optical NDT techniques?

A. Bendada, S. Sfarra, M. Genest, D. Paoletti, S. Rott, E. Talmy, C. Ibarra-Castanedo, X. Maldague

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

An integrated system between infrared vision and optical non-destructive testing techniques can be considered a viable, robust and reliable approach for both aerospace manufacturing and in-service inspections. In this paper, infrared vision is applied in different spectral bands on two impacted panels made of aramid-phenolic composite by applying two different methods, respectively: (1) near and short-wave infrared reflectography and transmittography, and (2) mid-wave active infrared thermography. Furthermore, optical methods, namely digital speckle photography and holographic interferometry, are used as well to highlight the damages due to the impacts on the samples. Some techniques provide more straightforward detection capabilities than others for different defect types.

Original languageEnglish
Pages (from-to)195-208
Number of pages14
JournalEngineering Fracture Mechanics
Volume108
DOIs
Publication statusPublished - Aug 2013
Externally publishedYes

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Keywords

  • Composites
  • Debonding
  • Defects
  • Infrared vision
  • Optical testing

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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