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Electromagnetic and thermal analysis of a multilayer CFRP panel struck by lightning with the FDTD method
Author(s) -
Ueno Koki,
Miki Nozomu,
Baba Yoshihiro,
Nagaoka Naoto,
Tsubata Hiroyuki,
Nishi Takayuki
Publication year - 2020
Publication title -
ieej transactions on electrical and electronic engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.254
H-Index - 30
eISSN - 1931-4981
pISSN - 1931-4973
DOI - 10.1002/tee.23038
Subject(s) - finite difference time domain method , materials science , lightning (connector) , discretization , anisotropy , lightning strike , fibre reinforced plastic , thermal conductivity , thermal conduction , time domain , composite material , mechanics , diagonal , electrical engineering , engineering , physics , geometry , optics , mathematical analysis , ground , mathematics , thermodynamics , computer science , power (physics) , computer vision
The transient distribution of heat generated in a 16‐layer carbon fiber‐reinforced plastic (CFRP) panel, in which a lightning current with a magnitude of 3 kA, a rise time of 6.4 µs, and a time to half‐peak value of 69 µs is injected, has been computed. Each layer of the CFRP panel has a fiber axis direction of 45, 90, −45, or 0° and, therefore, has anisotropic electrical and thermal conductivities. This multilayer CFRP panel has been represented with a conductivity matrix consisting of off‐diagonal elements in the finite‐difference time domain (FDTD) simulation. The heat is computed, on the basis of FDTD‐computed conduction current densities, using a discretized heat equation. © 2019 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.