Abstract
AbstractCarbon fibre reinforced polymers (CFRP) structures, e.g., wind turbine blades, are suspectable to direct lightning strikes due to their semiconductive nature and ability to conduct current. It is critical to identify and evaluate lightning damage as it can cause premature failure of the primary load carrying components. Direct strike lightning damage has been traditionally identified and assessed by ultrasonic (UT) inspection, which is time consuming, usually requires contact, and does not directly provide a measure of damage severity. An appealing alternative to UT is pulsed thermography (PT), which takes minutes to conduct rather than hours and does not require a couplant. The aim of this work is to explore the application of pulse thermography to identify and evaluate the damage state of CFRP panels damaged by simulated lightning strike. A new analysis technique is presented that provides a damage severity metric which allows damage to be categorized, separated, and quantified.
Funder
H2020 Marie Skłodowska-Curie Actions
Publisher
Springer Science and Business Media LLC
Reference52 articles.
1. Gagné M, Therriault D (2014) Lightning strike protection of composites, Prog. Aerosp. Sci, vol. 64, no. January, pp. 1–16, https://doi.org/10.1016/j.paerosci.2013.07.002
2. Maeda T, Kamada Y (2009) A review of wind energy activities in Japan. Wind Energy 12(7):621–639. https://doi.org/10.1002/we.313
3. Shohag MAS, Hammel EC, Olawale DO, Okoli OI (2017) Damage mitigation techniques in wind turbine blades: A review, Wind Eng, vol. 41, no. 3, pp. 185–210, Jun. https://doi.org/10.1177/0309524X17706862
4. Chemartin L et al (2012) Direct effects of Lightning on Aircraft structure: analysis of the Thermal, Electrical and mechanical constraints. J Aerosp Lab, 5, pp. 1–15
5. Feraboli P, Miller M (2009) Damage resistance and tolerance of carbon/epoxy composite coupons subjected to simulated lightning strike. Compos Part Appl Sci Manuf 40:6–7. https://doi.org/10.1016/j.compositesa.2009.04.025