A comparison of material state monitoring techniques applied to resin transfer moulding

Daniel Griffin, Alper Aktas, Maria Lodeiro, Tim Young, Ian Hamerton, Ivana Partridge

Research output: Contribution to conferenceConference Paper

2 Citations (Scopus)

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 languageEnglish
Publication statusPublished - 1 Jan 2017
Event21st International Conference on Composite Materials, ICCM 2017 - Xi'an, China
Duration: 20 Aug 201725 Aug 2017

Conference

Conference21st International Conference on Composite Materials, ICCM 2017
CountryChina
CityXi'an
Period20/08/1725/08/17

Keywords

  • Cure monitoring
  • Dielectric spectroscopy
  • Direct current
  • Epoxy resin
  • Fibre Bragg grating
  • Resin Transfer Moulding
  • Ultrasound
  • Unsaturated polyester resin

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