Communication Dans Un Congrès Année : 2017

Simulation of the Lightning Arc Root Interaction with Anisotropic Materials

Résumé

The interaction between lightning arcs and composite materials is a challenging issue for maintenance and safety considerations in the aerospace industry [1]. Composite materials exhibit a much lower conductivity than metallic materials, as well as an important anisotropy due to the orientation of the fibres and the insulating nature of the matrix. In this study, the impact of the anisotropy of composite materials on the lightning arc root dynamics during the pulsed arc phase has been focused. A finite-volume compressible MHD code including Joule heating, Laplace forces and radiative fluxes has been used in a simplified 2D configuration with a single layer composite material. The different current distributions in the arc root are examined up to 30 µs for different ratios between longitudinal and perpendicular conductivities.

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hal-02132676 , version 1 (17-05-2019)

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  • HAL Id : hal-02132676 , version 1

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Fabien Tholin, L. Chemartin, Philippe Lalande. Simulation of the Lightning Arc Root Interaction with Anisotropic Materials. ICOLSE 2017, Sep 2017, Nagoya, Japan. ⟨hal-02132676⟩
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