| 초록 |
In structural polymer composites, separation of fiber reinforcement and polymer matrix occurs under external stress, and assessing deformation and fracture of the composites requires expensive sensors and skilled non-destructive visual inspection. In this study, we suggest damage assessment method for colored structural composites by color difference that is detected at damaged spots and areas. Colors at damaged spots were digitized in figures, and compared with the original colors of the pigment and colored composites. We also quantify the colors at damaged spots in accordance with types and degrees of damages. Finally, we further apply this assessment method to large-scale structural composites. This research was supported by Basic Science Research Program through the National Research Foundation of Korea(NRF) funded by the Ministry of Education(2020R1A6A1A03038697) |
