Numerical Code for Modeling Electrothermal Effects of Lightning Strike on CFRP Composites

This article aims to model some of the lightning strikes effects on a composite material modeled through numerical simulation. The simulation is based on the finite-difference time-domain (FDTD) method which allows the analysis of the electromagnetic and thermal effects related to the problem. The t...

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Bibliographic Details
Published in:IEEE transactions on magnetics 2020-03, Vol.56 (3), p.1-4
Main Authors: Audiffred, Diego B. S., Travassos, X. L., Possamai, Talita S., Ida, N.
Format: Article
Language:English
Subjects:
Atmospheric modeling
Composite materials
Computer simulation
Conductivity
Electromagnetics
Finite difference time domain method
finite-difference methods
Lightning
Lightning effects
Lightning strikes
Magnetism
Mathematical model
Mathematical models
Numerical models
Simulation
Temperature effects
thermal analysis
Thermal conductivity
Thermal simulation
Time domain analysis
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Description
Summary:This article aims to model some of the lightning strikes effects on a composite material modeled through numerical simulation. The simulation is based on the finite-difference time-domain (FDTD) method which allows the analysis of the electromagnetic and thermal effects related to the problem. The thermal distribution is evaluated based on the results obtained from the electromagnetic simulation. Results show that the composite's fiber direction plays a crucial role in the current density pattern and that the lightning strike effects concentrate on the outermost layers of the composite. In addition, from the thermal simulation, it is shown that the lightning strike can cause a rise in the composite temperature over 900 °C with only 1 s of interaction with the material for a current of 200 kA.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2019.2959132