A cure modelling study of an unsaturated polyester resin system for the simulation of curing of fibre-reinforced composites during the vacuum infusion process

A. Aktas, Latha Krishnan, B. Kandola, S. W. Boyd, R. A. Shenoi

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    Abstract

    This study presents the cure kinetics and cure modelling of an ambient curing unsaturated polyester (UP) resin system for its cure simulation in the vacuum infusion (VI) process. The curing of the UP resin system was investigated using differential scanning calorimetry (DSC). The dynamic DSC test measurements were conducted to find out the ultimate heat of reaction and enable experimental conversion determination for the isothermal curing. The empirical autocatalytic cure kinetics model incorporating the Arrhenius law represented the cure behaviour. The results of the cure kinetics study, the cure model, the material properties and the boundary conditions were the inputs in PAM-RTM software for the simulation of the degree of cure and the exothermic temperature during the infusion and the room temperature curing stages. The simulation results were compared with experimentally measured data. A vacuum infusion (VI) experiment involving a non-crimp glass fibre preform was performed in order to monitor the curing using thermocouples and validate the temperature simulation result. It was shown that the degree of cure and the exothermic temperature of a room temperature curing thermoset resin system during the VI process could be predicted through the steps of this study.
    Original languageEnglish
    Pages (from-to)2529-2540
    JournalJournal of Composite Materials
    Volume49
    Issue number20
    DOIs
    Publication statusPublished - 2 Sep 2014

    Fingerprint

    Polyester resins
    Curing
    Vacuum
    Fibers
    Composite materials
    Kinetics
    Differential scanning calorimetry
    Temperature
    Pulse amplitude modulation
    Resin transfer molding
    Thermosets
    Thermocouples
    Glass fibers
    Materials properties
    Resins
    Boundary conditions
    Experiments

    Keywords

    • unsaturated polyester resin
    • differential scanning calorimetry
    • cure kinetics
    • cure simulation
    • vacuum infusion process

    Cite this

    A cure modelling study of an unsaturated polyester resin system for the simulation of curing of fibre-reinforced composites during the vacuum infusion process. / Aktas, A.; Krishnan, Latha; Kandola, B.; Boyd, S. W.; Shenoi, R. A.

    In: Journal of Composite Materials, Vol. 49, No. 20, 02.09.2014, p. 2529-2540.

    Research output: Contribution to journalArticle

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    abstract = "This study presents the cure kinetics and cure modelling of an ambient curing unsaturated polyester (UP) resin system for its cure simulation in the vacuum infusion (VI) process. The curing of the UP resin system was investigated using differential scanning calorimetry (DSC). The dynamic DSC test measurements were conducted to find out the ultimate heat of reaction and enable experimental conversion determination for the isothermal curing. The empirical autocatalytic cure kinetics model incorporating the Arrhenius law represented the cure behaviour. The results of the cure kinetics study, the cure model, the material properties and the boundary conditions were the inputs in PAM-RTM software for the simulation of the degree of cure and the exothermic temperature during the infusion and the room temperature curing stages. The simulation results were compared with experimentally measured data. A vacuum infusion (VI) experiment involving a non-crimp glass fibre preform was performed in order to monitor the curing using thermocouples and validate the temperature simulation result. It was shown that the degree of cure and the exothermic temperature of a room temperature curing thermoset resin system during the VI process could be predicted through the steps of this study.",
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    AU - Krishnan, Latha

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    AU - Shenoi, R. A.

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