Prospects of Pulse Phase Thermography for Finding Disbonds in CFRP-Sandwich Parts with Aluminum Honeycomb Cores Compared to Ultrasonic

Jürgen Gruber, Bernhard Stotter, Günther Mayr, Günther Hendorfer

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

3 Citations (Scopus)

Abstract

This work shows the prospects of pulse phase thermography (PPT) compared to ultrasonic testing when applied to carbon fiber reinforced polymer (CFRP) sandwich parts with aluminum honeycomb cores. Measurements were carried out on full-scale components with flaws like disbonds, septum disbonds, staggers and displaced cores, where the last two are not literally flaws, but nevertheless regions of interest. The effect of the measurement time and the feasibility of extrapolating temperature decays were evaluated. Phase images, gathered with PPT, are compared with ultrasonic C-scan images to show the capability of PPT for quality assurance purposes. Finally, the saving on inspection time when using pulse phase thermography instead of ultrasonic testing is considered.
Original languageEnglish
Title of host publicationReview of Progress in Quantitative Nondestructive Evaluation, Volume 32
EditorsDale E. Chimenti, Donald O. Thompson
PublisherAIP Publishing
Pages547-554
Number of pages8
ISBN (Electronic)9780735411296
DOIs
Publication statusPublished - 2013
EventReview of Progress in Quantitative Non-Destructive Evaluation - Denver / Colorado, Austria
Duration: 15 Jul 201220 Jul 2012

Publication series

NameAIP Conference Proceedings
Volume1511
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceReview of Progress in Quantitative Non-Destructive Evaluation
Country/TerritoryAustria
CityDenver / Colorado
Period15.07.201220.07.2012

Keywords

  • Active Thermography
  • CFRP
  • Honeycomb Core
  • Pulse Phased Thermography

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