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Lightning surface explosion impact study on damage generation into composite

Bigand, Audrey and Espinosa, Christine and Bauchire, Jean-Marc Lightning surface explosion impact study on damage generation into composite. (2019) In: International Conference of Lightning and Static Electricity (ICOLSE2019), 10 September 2019 - 13 September 2019 (Wichita, United States). (Unpublished)

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Abstract

Lightning damage mechanism for composite aircraft structure is a complex multi-physical phenomenon. The lightning current entering into the surface metallic protection and the carbon plies generates Joule’s effects and electromagnetic forces which both induce mechanical forces and surface explosion that produce a significant mechanical impact. The explosion of the lightning strike protection has been recorded through the measurement of the vaporization profile evolution in space and time using transparent glass epoxy substrates. In this paper, this profile is combined to shock wave model developed by the study of electric explosion on wire equivalent to web of ECF. The initial shock wave from the surface explosion has been injected into a mechanical model using Abaqus Explicit® with a pressure profile dependent on time and distance from lightning current injection. Results of the simulations are confronted with laboratory lightning tests for deflections and damages.

Item Type:Conference or Workshop Item (Paper)
HAL Id:hal-02391647
Audience (conference):International conference without published proceedings
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 - UT3 (FRANCE)
Other partners > Université d'Orléans (FRANCE)
Laboratory name:
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Deposited On:03 Dec 2019 15:15

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