Combined application of Bragg gratings and dielectric sensors for the cure monitoring of bonded composite repairs

Abstract

The combined use of Bragg grating and dielectric sensors has been studied for the monitoring of bonded composite repairs to metallic parts, using standard composites field repair equipment and specially built "sensing mats" Measurements retrieved via a variety of sensors were correlated, to analyze the interactions of the chemical and physical changes occurring during the bonding process. It was concluded that the combined use of Bragg gratings and dielectric sensors can provide important information for the cure monitoring of bonded composite repairs.