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A method to replace lightning strike tests by ball impacts in the design process of lightweight composite aircraft panels

Soulas, Floriane and Espinosa, Christine and Lachaud, Frédéric and Guinard, Stéphane and Lepetit, Bruno and Revel, Ivan and Duval, Yohann A method to replace lightning strike tests by ball impacts in the design process of lightweight composite aircraft panels. (2018) International Journal of Impact Engineering, 111. 165-176. ISSN 0734-743X

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Official URL: https://doi.org/10.1016/j.ijimpeng.2017.09.007

Abstract

Composite material aircrafts are protected against lightning on the basis of complex and expansive lightning strike experimental plans aiming at designing optimal protections. The paper aims at reducing the number of lightning strike tests on protected and painted composite panels. An analytical calculation is presented that gives the characteristics of an equivalent mechanical impact configuration based on an assessment of the typical time scale of energy deposit and kinematic behaviour during a lightning strike test. The paper presents our analytical hypotheses and calculations, as well as experimental lighting strikes and mechanical impact settings and results. The method is shown to give an acceptable approximation of both the kinematics and the delamination surface.

Item Type:Article
HAL Id:hal-01940478
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:Other partners > Airbus (FRANCE)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Ecole nationale supérieure des Mines d'Albi-Carmaux - IMT Mines Albi (FRANCE)
Université de Toulouse > Institut National des Sciences Appliquées de Toulouse - INSA (FRANCE)
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Laboratory name:
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Deposited By: ESPINOSA Christine
Deposited On:07 Jun 2019 14:47

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