Basalt fibre laminates non-destructively inspected after low-velocity impacts

Authors: Sfarra, Stefano; Ibarra Castanedo, Clemente; Sarasini, Fabrizio; Santulli, Carlo; Maldague, X.
Abstract: In this work, the use of advanced thermographic techniques for the post-impact defect detection in basalt fibre reinforced composite laminates was investigated. The laminates were previously impacted at different energies, namely 7.5, 15 and 22.5 J and then subjected to accelerated environmental aging or to a coating process in order to conceal the previous damage due to low velocity impact. In both cases the defects could be identified using infrared thermography in the mid-wave infrared (MWIR) spectrum even after the treatments. In addition, short-wave infrared (SWIR) results were employed with the aim to clearly identify unsuspected resin-rich areas. Therefore, the non-thermal part of the infrared spectrum (SWIR) can be coupled with the thermal part (MWIR) providing a complete infrared vision beyond what is perceptible to the naked eye, i.e., in the visible spectrum.
Document Type: Article de recherche
Issue Date: 31 August 2016
Open Access Date: 31 August 2017
Document version: AM
Permalink: http://hdl.handle.net/20.500.11794/13130
This document was published in: FME Transactions, Vol. 44, (4), 380-385 (2016)
https://doi.org/10.5937/fmet1604380S
Faculty of mechanical Engineering (Belgrade)
Alternative version: 10.5937/fmet1604380S
Collection:Articles publiés dans des revues avec comité de lecture

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