P004 電気抵抗変化法による部分柔軟CFRPの損傷評価(フェロー賞表彰対象ポスターセッション)

抄録

For Unmanned Aerial Vehicles (UAV), "Morphing wing" is desired to improve the maneuverability and reduce the total weight of structures. Morphing wing enables the aircraft to change its standard performance. In this study, a new Partially-Flexible CFRP (PFC) is proposed for the material of morphing wing. The PFC consists of two kinds of matrices: high-stiffness matrix and low-stiffness matrix in a structure. Reinforced fiber continues in the whole structure, so damages of the PFC can be monitored by electrical resistance changes method. In this paper, a relationship of ratio of fiber broken and electrical resistance changes is shown. To investigate the performance of the PFC, cyclic bending tests is performed, and damages of PFC is evaluated by measuring electrical resistance changes. It is proved that the PFC with more than 10mm-long flexible part can maintain its stiffness and has the strength to apply actual structures.