Numerical and experimental validation of SMArt thermography for the inspection of wind blade composite laminate

Abstract An innovative active thermography technique is proposed for the inspection of typical wind blade material. The proposed technique is based on the use of a multifunctional material obtained adding a grid of Shape Memory Alloy wires, which would serve also as a protection against lightning, t...

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Main Authors: Marta De Giorgi, Riccardo Nobile, Andrea Saponaro
Format: Article
Language:English
Published: Springer 2020-09-01
Series:SN Applied Sciences
Subjects:
Online Access:https://doi.org/10.1007/s42452-020-03428-0
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author Marta De Giorgi
Riccardo Nobile
Andrea Saponaro
author_facet Marta De Giorgi
Riccardo Nobile
Andrea Saponaro
author_sort Marta De Giorgi
collection DOAJ
description Abstract An innovative active thermography technique is proposed for the inspection of typical wind blade material. The proposed technique is based on the use of a multifunctional material obtained adding a grid of Shape Memory Alloy wires, which would serve also as a protection against lightning, to a traditional glass fibre composite panel. This technique, called SMArt thermography, which exploits the SMA wires as internal heat sources, has been compared to a traditional pulsed thermography in the case of a representative panel of unidirectional glass fibre and epoxy matrix with embedded SMA wires and artificial defects. The experimental results of the two techniques are reported and compared to the result of a numerical FEM transient model, in order to establish the reliability and the detectability limit of the proposed technique. The FEM model has been proven to be a useful tool for the definition of the multifunctional material at a design stage.
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spelling doaj.art-32916cee3f1d44bc8145efb14f0632202022-12-21T18:31:18ZengSpringerSN Applied Sciences2523-39632523-39712020-09-0121011910.1007/s42452-020-03428-0Numerical and experimental validation of SMArt thermography for the inspection of wind blade composite laminateMarta De Giorgi0Riccardo Nobile1Andrea Saponaro2Department of Engineering for Innovation, Università del SalentoDepartment of Engineering for Innovation, Università del SalentoDepartment of Engineering for Innovation, Università del SalentoAbstract An innovative active thermography technique is proposed for the inspection of typical wind blade material. The proposed technique is based on the use of a multifunctional material obtained adding a grid of Shape Memory Alloy wires, which would serve also as a protection against lightning, to a traditional glass fibre composite panel. This technique, called SMArt thermography, which exploits the SMA wires as internal heat sources, has been compared to a traditional pulsed thermography in the case of a representative panel of unidirectional glass fibre and epoxy matrix with embedded SMA wires and artificial defects. The experimental results of the two techniques are reported and compared to the result of a numerical FEM transient model, in order to establish the reliability and the detectability limit of the proposed technique. The FEM model has been proven to be a useful tool for the definition of the multifunctional material at a design stage.https://doi.org/10.1007/s42452-020-03428-0Multifunctional materialsSMArt thermographyShape memory alloyWind bladesDefect detection
spellingShingle Marta De Giorgi
Riccardo Nobile
Andrea Saponaro
Numerical and experimental validation of SMArt thermography for the inspection of wind blade composite laminate
SN Applied Sciences
Multifunctional materials
SMArt thermography
Shape memory alloy
Wind blades
Defect detection
title Numerical and experimental validation of SMArt thermography for the inspection of wind blade composite laminate
title_full Numerical and experimental validation of SMArt thermography for the inspection of wind blade composite laminate
title_fullStr Numerical and experimental validation of SMArt thermography for the inspection of wind blade composite laminate
title_full_unstemmed Numerical and experimental validation of SMArt thermography for the inspection of wind blade composite laminate
title_short Numerical and experimental validation of SMArt thermography for the inspection of wind blade composite laminate
title_sort numerical and experimental validation of smart thermography for the inspection of wind blade composite laminate
topic Multifunctional materials
SMArt thermography
Shape memory alloy
Wind blades
Defect detection
url https://doi.org/10.1007/s42452-020-03428-0
work_keys_str_mv AT martadegiorgi numericalandexperimentalvalidationofsmartthermographyfortheinspectionofwindbladecompositelaminate
AT riccardonobile numericalandexperimentalvalidationofsmartthermographyfortheinspectionofwindbladecompositelaminate
AT andreasaponaro numericalandexperimentalvalidationofsmartthermographyfortheinspectionofwindbladecompositelaminate