Meso-Scale Process Modelling Strategies for Pultrusion of Unidirectional Profiles

Onur Yuksel, Ismet Baran, Filip Salling Rasmussen, Jon Spangenberg, Nuri Ersoy, Jesper H. Hattel, Remko Akkerman

    Research output: Contribution to conferencePaper

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    Abstract

    The resin injection pultrusion is an automated composite manufacturing method in which the resin is injected in a chamber. The flow and the thermo chemical mechanical (TCM) models have been studied for the pultrusion process to improve the reliability of the final products. Flow models are needed to understand and describe the fiber impregnation, filling time and presence of dry spots or voids. Also pressure field in the injection chamber can be estimated with flow models. TCM models are needed to predict residual stress distributions and to optimize the process conditions. A non-uniform fiber distribution strongly affects the results of both types of models. In this study, different strategies are carried out to implement non-uniform fiber distributions into the models. The cross-sectional image and fiber distribution of a 19×19 mm glass fiber reinforced polyester unidirectional pultruded composite is used. Non-uniform fiber distribution is observed and implemented into the flow model by means of permeability variations. The results of this study are compared with uniform fiber distribution results. In the TCM model, the non-uniform fiber volume content is implemented within different sized patches. The results show that the non-uniform fiber fraction should be taken into account for the process models of composites in order to capture the local process induced stresses and probability of dry spots or voids due to poor fiber impregnation.
    Original languageEnglish
    Publication statusPublished - 2018
    Event18th European Conference on Composite Materials 2018 - Megaron Athens International Conference Center, Athens, Greece
    Duration: 25 Jun 201828 Jun 2018
    Conference number: 18
    http://www.eccm18.org/

    Conference

    Conference18th European Conference on Composite Materials 2018
    Abbreviated titleECCM 2018
    CountryGreece
    CityAthens
    Period25/06/1828/06/18
    Internet address

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    Pultrusion
    Fibers
    Impregnation
    Composite materials
    Resins
    Glass fibers
    Stress concentration
    Polyesters
    Residual stresses

    Cite this

    Yuksel, O., Baran, I., Rasmussen, F. S., Spangenberg, J., Ersoy, N., Hattel, J. H., & Akkerman, R. (2018). Meso-Scale Process Modelling Strategies for Pultrusion of Unidirectional Profiles. Paper presented at 18th European Conference on Composite Materials 2018, Athens, Greece.
    Yuksel, Onur ; Baran, Ismet ; Rasmussen, Filip Salling ; Spangenberg, Jon ; Ersoy, Nuri ; Hattel, Jesper H. ; Akkerman, Remko . / Meso-Scale Process Modelling Strategies for Pultrusion of Unidirectional Profiles. Paper presented at 18th European Conference on Composite Materials 2018, Athens, Greece.
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    title = "Meso-Scale Process Modelling Strategies for Pultrusion of Unidirectional Profiles",
    abstract = "The resin injection pultrusion is an automated composite manufacturing method in which the resin is injected in a chamber. The flow and the thermo chemical mechanical (TCM) models have been studied for the pultrusion process to improve the reliability of the final products. Flow models are needed to understand and describe the fiber impregnation, filling time and presence of dry spots or voids. Also pressure field in the injection chamber can be estimated with flow models. TCM models are needed to predict residual stress distributions and to optimize the process conditions. A non-uniform fiber distribution strongly affects the results of both types of models. In this study, different strategies are carried out to implement non-uniform fiber distributions into the models. The cross-sectional image and fiber distribution of a 19×19 mm glass fiber reinforced polyester unidirectional pultruded composite is used. Non-uniform fiber distribution is observed and implemented into the flow model by means of permeability variations. The results of this study are compared with uniform fiber distribution results. In the TCM model, the non-uniform fiber volume content is implemented within different sized patches. The results show that the non-uniform fiber fraction should be taken into account for the process models of composites in order to capture the local process induced stresses and probability of dry spots or voids due to poor fiber impregnation.",
    author = "Onur Yuksel and Ismet Baran and Rasmussen, {Filip Salling} and Jon Spangenberg and Nuri Ersoy and Hattel, {Jesper H.} and Remko Akkerman",
    year = "2018",
    language = "English",
    note = "18th European Conference on Composite Materials 2018, ECCM 2018 ; Conference date: 25-06-2018 Through 28-06-2018",
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    Yuksel, O, Baran, I, Rasmussen, FS, Spangenberg, J, Ersoy, N, Hattel, JH & Akkerman, R 2018, 'Meso-Scale Process Modelling Strategies for Pultrusion of Unidirectional Profiles' Paper presented at 18th European Conference on Composite Materials 2018, Athens, Greece, 25/06/18 - 28/06/18, .

    Meso-Scale Process Modelling Strategies for Pultrusion of Unidirectional Profiles. / Yuksel, Onur ; Baran, Ismet ; Rasmussen, Filip Salling; Spangenberg, Jon; Ersoy, Nuri; Hattel, Jesper H.; Akkerman, Remko .

    2018. Paper presented at 18th European Conference on Composite Materials 2018, Athens, Greece.

    Research output: Contribution to conferencePaper

    TY - CONF

    T1 - Meso-Scale Process Modelling Strategies for Pultrusion of Unidirectional Profiles

    AU - Yuksel, Onur

    AU - Baran, Ismet

    AU - Rasmussen, Filip Salling

    AU - Spangenberg, Jon

    AU - Ersoy, Nuri

    AU - Hattel, Jesper H.

    AU - Akkerman, Remko

    PY - 2018

    Y1 - 2018

    N2 - The resin injection pultrusion is an automated composite manufacturing method in which the resin is injected in a chamber. The flow and the thermo chemical mechanical (TCM) models have been studied for the pultrusion process to improve the reliability of the final products. Flow models are needed to understand and describe the fiber impregnation, filling time and presence of dry spots or voids. Also pressure field in the injection chamber can be estimated with flow models. TCM models are needed to predict residual stress distributions and to optimize the process conditions. A non-uniform fiber distribution strongly affects the results of both types of models. In this study, different strategies are carried out to implement non-uniform fiber distributions into the models. The cross-sectional image and fiber distribution of a 19×19 mm glass fiber reinforced polyester unidirectional pultruded composite is used. Non-uniform fiber distribution is observed and implemented into the flow model by means of permeability variations. The results of this study are compared with uniform fiber distribution results. In the TCM model, the non-uniform fiber volume content is implemented within different sized patches. The results show that the non-uniform fiber fraction should be taken into account for the process models of composites in order to capture the local process induced stresses and probability of dry spots or voids due to poor fiber impregnation.

    AB - The resin injection pultrusion is an automated composite manufacturing method in which the resin is injected in a chamber. The flow and the thermo chemical mechanical (TCM) models have been studied for the pultrusion process to improve the reliability of the final products. Flow models are needed to understand and describe the fiber impregnation, filling time and presence of dry spots or voids. Also pressure field in the injection chamber can be estimated with flow models. TCM models are needed to predict residual stress distributions and to optimize the process conditions. A non-uniform fiber distribution strongly affects the results of both types of models. In this study, different strategies are carried out to implement non-uniform fiber distributions into the models. The cross-sectional image and fiber distribution of a 19×19 mm glass fiber reinforced polyester unidirectional pultruded composite is used. Non-uniform fiber distribution is observed and implemented into the flow model by means of permeability variations. The results of this study are compared with uniform fiber distribution results. In the TCM model, the non-uniform fiber volume content is implemented within different sized patches. The results show that the non-uniform fiber fraction should be taken into account for the process models of composites in order to capture the local process induced stresses and probability of dry spots or voids due to poor fiber impregnation.

    M3 - Paper

    ER -

    Yuksel O, Baran I, Rasmussen FS, Spangenberg J, Ersoy N, Hattel JH et al. Meso-Scale Process Modelling Strategies for Pultrusion of Unidirectional Profiles. 2018. Paper presented at 18th European Conference on Composite Materials 2018, Athens, Greece.