EVALUATION AND CALIBRATION OF TOOL INDEPENDENT CURE MONITORING SYSTEMS FOR EPOXY RESINS
Jochen Schmidt, Mark Opitz, Nico Liebers · elib (German Aerospace Center) · 2015
There is a strong demand for cure monitoring solutions to improve the manufacturing processes for FRP components made from thermoset polymers. Piezoelectric ultrasound sensors and dielectrical analysis are systems that do not require major modifications to the molds. Both systems proved to be able to monitor the curing process and to determine the earliest point in time when the component may be demolded. To link the sensor values conductivity and signal velocity to the degree of cure a lookup table for the individual resin system is necessary.