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Lock-in Thermography to Detect Delamination in Carbon Fibres Reinforced Polymers

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Damage Growth in Aerospace Composites

Part of the book series: Springer Aerospace Technology ((SAT))

Abstract

This chapter deals with the use of lock-in thermography in the evaluation of some specimens made of Carbon Fibres Reinforced Polymers. These specimens were fabricated with the infusion technique and with intentionally enclosed thin Kapton® diskettes to simulate delaminated areas and/or slag inclusions through their thickness. More specifically, the thin Kapton® foils of different shape (circular, or elliptical) and dimensions were embedded, during fabrication, in each sample at different depths; in some cases, two or more concentric disks, of different diameters, were overlapped. Specimens were all non-destructively inspected with optical lock-in thermography and results were reduced in terms of phase images. As a main finding, all the inserts were detected and well outlined also in presence of thin overlapped foils which, of course, made more difficult their discrimination. A quantitative data analysis, involving measurement of both size and depth of the detected slag inclusions, was also performed.

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Authors and Affiliations

  1. Department of Industrial Engineering, Aerospace Division, University of Naples Federico II, Via Claudio, 21, 80125, Naples, Italy

    Carosena Meola & Giovanni Maria Carlomagno

Authors
  1. Carosena Meola
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  2. Giovanni Maria Carlomagno
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Correspondence to Carosena Meola .

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Editors and Affiliations

  1. Department of Industrial and Information Engineering, Second University of Naples, Aversa, Italy

    Aniello Riccio

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Meola, C., Carlomagno, G.M. (2015). Lock-in Thermography to Detect Delamination in Carbon Fibres Reinforced Polymers. In: Riccio, A. (eds) Damage Growth in Aerospace Composites. Springer Aerospace Technology. Springer, Cham. https://doi.org/10.1007/978-3-319-04004-2_13

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  • DOI: https://doi.org/10.1007/978-3-319-04004-2_13

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-04003-5

  • Online ISBN: 978-3-319-04004-2

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