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A COMPARISON OF MATERIAL STATE MONITORING TECHNIQUES APPLIED TO RESIN TRANSFER MOULDING

Daniel Griffin1Alper Aktas1Maria Lodeiro1Tim Young2Ian Hamerton3Ivana Partridge3

1. National Physical Laboratory2. National Composites Centre3. University of Bristol

摘要: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, 3 D 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 701 PA) 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.
会议名称:

第二十一届国际复合材料大会

会议时间:

2017-08-20

会议地点:

中国陕西西安

  • 专辑:

    工程科技Ⅰ辑

  • 专题:

    材料科学

  • 分类号:

    TB332

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