Basalt fibre laminates non-destructively inspected after low-velocity impacts
| Autor: | Sfarra S., Ibarra-Castanedo C., Sarasini F., Santulli Carlo, Maldague X.P.V. |
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| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: | |
| Zdroj: | FME Transactions, Vol 44, Iss 4, Pp 380-385 (2016) |
| Druh dokumentu: | article |
| ISSN: | 1451-2092 2406-128X |
| Popis: | 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. |
| Databáze: | Directory of Open Access Journals |
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