Detection of the key steps during Liquid Resin Infusion manufacturing of a polymer-matrix composite using an in-situ piezoelectric sensor

This article investigates the interest of a novel promising approach, dealing with the use of an in-situ piezoelectric (PZT) disk to monitor the whole manufacturing process of a glass fiber/polyester Polymer-Matrix Composite (PMC) plate using the Liquid Resin Infusion (LRI) technique. The real-time in-situ Process Monitoring (PM) is conducted using the electrical signature (capacitance) variation of the embedded PZT transducer, which has never...