The production process of fiber reinforced plastic parts must be controlled through sophisticated instruments to warrant high quality standards. The cure degree of matrix, that it is representative of the product quality, is in general evaluated by indirect method, measuring the temperature inside the laminate, or by direct method, evaluating the dielectric behaviour of matrix. The aim of this work was to value the possibility to measure the cure degree of laminates by dielectric coplanar plates substituting a traditional parallel plates sensor that are sensitive to laminate compaction during cure. FEM simulations were executed to develop the sensor and then some experimental tests were carried out to verify the suitability of the designed sensor to measure the degree of cure in a laminate. The cure degree trend evaluated through the developed sensor was compared with that one noticed through a cure process simulation and with that one measured by a parallel plates sensor.
In-process monitoring of cure degree by coplanar plate sensors
SORRENTINO, Luca;BELLINI, Costanzo
2016-01-01
Abstract
The production process of fiber reinforced plastic parts must be controlled through sophisticated instruments to warrant high quality standards. The cure degree of matrix, that it is representative of the product quality, is in general evaluated by indirect method, measuring the temperature inside the laminate, or by direct method, evaluating the dielectric behaviour of matrix. The aim of this work was to value the possibility to measure the cure degree of laminates by dielectric coplanar plates substituting a traditional parallel plates sensor that are sensitive to laminate compaction during cure. FEM simulations were executed to develop the sensor and then some experimental tests were carried out to verify the suitability of the designed sensor to measure the degree of cure in a laminate. The cure degree trend evaluated through the developed sensor was compared with that one noticed through a cure process simulation and with that one measured by a parallel plates sensor.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
