Abstract
In this study, a combined cure monitoring system development comprising dielectric spectroscopy (DEA), direct current (DC) resistivity, ultrasound, fibre-Bragg gratings (FBG) and temperature sensors for the Resin Transfer Moulding (RTM) process is presented. This system is capable of monitoring cure, 3D flow front, flow rate, pressure and temperature using embedded and tool-mounted sensors. An RTM mould with a heating capability has been designed with sensor ports. In order to assess this multi-sensing approach, some preliminary investigations were performed using a slow curing epoxy (Prime 20 LV) and a slow curing unsaturated polyester (Crystic 701PA) thermoset resin systems. An E-glass fibre multiaxial reinforcement system was used. Two-stage cure monitoring experiments (room temperature cure followed by a post-cure cycle) were performed. The changes in signals indicated flow front arrivals, temperature ramps and state of resins. This paper presents the techniques, multi-sensing approach and preliminary results.
| Original language | English |
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| Publication status | Published - 1 Jan 2017 |
| Event | 21st International Conference on Composite Materials, ICCM 2017 - Xi'an, China Duration: 20 Aug 2017 → 25 Aug 2017 |
Conference
| Conference | 21st International Conference on Composite Materials, ICCM 2017 |
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| Country/Territory | China |
| City | Xi'an |
| Period | 20/08/17 → 25/08/17 |
Keywords
- Cure monitoring
- Dielectric spectroscopy
- Direct current
- Epoxy resin
- Fibre Bragg grating
- Resin Transfer Moulding
- Ultrasound
- Unsaturated polyester resin