Numerical modeling support for the understanding of current distribution in carbon fibers composites

Composite materials have benefited from a strong increase of utilization in aeronautic industry. The replacement of metallic elements by CFRP ones involves to better control the current distributions into composite structures as their electrical conductivity is significantly lower than the those of metals. Numerical modeling appears to be of great interest when facing on high costs for lightning tests or impossibility to manufacture large composite mockups. The object of this paper is to present an original wired approach for modeling current distribution in a composite structure, in a frequency range comprised between the continuous up to few tens of MHz.