In this paper, artificial lightning strike tests for Cup Stucked Carbon Nanofiber (CNF) dispersed CFRP are performed to investigate the applicability for lightning protection systems. The result of visual inspection and NDT shows that the size and thickness of internal damage comprise of delamination and matrix cracks are affected by changing of CNF content, though the surface damage of fiber damaged area and resin deterioration area are hardly affected. Furthermore, in order to investigate the characteristic of residual compression strength, compression test for damaged laminate were performed in conformity with SACMA CAI test standard. As a result, it is confirmed that the residual compression strength are improved with increasing of the CNF content.
