3D-printed resistive carbon-fiber-reinforced sensors for monitoring the resin frontal flow during composite manufacturing

In this paper, novel resin frontal flow monitoring electrically resistive sensors made of reinforced continuous carbon fibers and manufactured by composite additive manufacturing (AM) are examined. For such manufacture, two adjacent and parallel fiber yarns made with carbon-fiber embedded in the polymer matrix were deposited by using a 3D printer system. These flexible flow sensors were made of two nylon wall layers, had a fixed separating...