Nonlinear electrical conductivity through the thickness of multidirectional carbon fiber composites

Lightning strikes pose a serious natural threat to carbon fiber-reinforced polymers (CFRPs). Knowledge of the electrical current distribution is essential for modeling the interaction between CFRP with lightning. In most applications, the anisotropy of CFRP makes the electrical current tend to concentrate on the surface, having significant influence on the current distribution. The conductivity through the thickness direction was studied with...