Abstract
Carbon Nanofiber (CNF) dispersed CFRP is expected to the application for the lightning protection systems of aerospace planes. In this paper, fiber volume fraction measurement and volume resistivity measurement, artificial lightning strike tests of CNF dispersed CFRP laminates are performed to investigate the relationship between electrical characteristic, lightning damage behavior and CNF content. In the range of this study, the effect of V_f is dominant on electrical characteristic and electrical improvement doe to CNF is not enough. On the other hand, delamination area is apparently decreasing with CNF content increasing. Therefore, it is suggested that not only volume resistivity but also dielectric breakdown field strength, heat transfer properties and interlaminer fracture strength affect lightning strike damage behavior.
