1998
DOI: 10.1117/12.304742
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<title>Applications for thermal NDT on advanced composites in aerospace structures</title>

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Cited by 8 publications
(4 citation statements)
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“…This method is based on accurate detection of changes in the emitted IR energy emanating from the inspection surface during the cooling process. Applications of this technology range from maintenance of in-service aircraft to process control for the manufacture of large aerospace structures [1,2] . For many applications, Pulsed Thermography compares favourably to conventional inspection technologies in terms of its sensitivity, speed, curvature tolerance and non-contact nature.…”
Section: Introductionmentioning
confidence: 99%
“…This method is based on accurate detection of changes in the emitted IR energy emanating from the inspection surface during the cooling process. Applications of this technology range from maintenance of in-service aircraft to process control for the manufacture of large aerospace structures [1,2] . For many applications, Pulsed Thermography compares favourably to conventional inspection technologies in terms of its sensitivity, speed, curvature tolerance and non-contact nature.…”
Section: Introductionmentioning
confidence: 99%
“…Since this is a relatively new tecluique, much work still needs to be done in improving its reliability. Its ineffectiveness in examining thick materials, however, raises a concern since the four inch Wick overwrap on the vessel is substantially thicker than the composites on aerospace structures, whose defects were successfully detected using thermography [22]. Deformation in a material causes rapid releases of energy, generating elastic stress waves.…”
mentioning
confidence: 99%
“…Research is currently being done using this relatively new method to monitor the structural integrity of aerospace and marine structures [22,23]. Thermal inspection operates on the principle that defects vary the thermrd profile of structures.…”
mentioning
confidence: 99%
“…Τα πλεονεκτήματα της, σε σχέση με τις παραπάνω τεχνικές, είναι ότι σε σχέση με τους υπερήχους και την τεχνική των δινορευμάτων πραγματοποιείται αμεσότερη λήψη των αποτελεσμάτων (κέρδος χρόνου), δεν είναι επιβλαβής όπως είναι ο έλεγχος με ακτίνες X, δίνοντας εξίσου ικανοποιητικά και αξιόπιστα αποτελέσματα (134,135,136), Επίσης, κρίνεται ως εξαιρετικά ενδιαφέρουσα, η προσέγγιση για ποσοτικοποίηση των εντοπισμένων ατελειών από το θερμογραφικό έλεγχο, μέσω της ψηφιακής επεξεργασίας εικόνας. Έτσι μπορεί να πραγματοποιείται περιοδικός έλεγχος στα αεροσκάφη και συνεπώς διερεύνηση πιθανής διάδοσης μίας ρωγμής, έπειτα από δυναμικές καταπονήσεις που επιδέχεται το αεροσκάφος (ΐ37,ΐ38).…”
Section: εξέταση ποιότητας οδοστρωμάτων αεροδροπίουunclassified