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

S. Sfarra, C. Ibarra-Castanedo, F. Sarasini, C. Santulli, X. P.V. Maldague

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

In this work, the use of advanced thermographic techniques for the postimpact 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.

Original languageEnglish
Pages (from-to)380-385
Number of pages6
JournalFME Transactions
Volume44
Issue number4
DOIs
Publication statusPublished - 2016
Externally publishedYes

Keywords

  • Basalt fibres
  • Damage detection
  • Environmental aging
  • Infrared thermography
  • Low-velocity impact

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering

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  • Cite this

    Sfarra, S., Ibarra-Castanedo, C., Sarasini, F., Santulli, C., & Maldague, X. P. V. (2016). Basalt fibre laminates non- destructively inspected after low- velocity impacts. FME Transactions, 44(4), 380-385. https://doi.org/10.5937/fmet1604380S