Viscoelastic bending model for continuous fiber-reinforced thermoplastic composites in melt

U. Sachs*, R. Akkerman

*Corresponding author for this work

    Research output: Contribution to journalArticleAcademicpeer-review

    8 Citations (Scopus)
    4 Downloads (Pure)

    Abstract

    Bending of single plies or stacks of multiple plies is an essential deformation mechanism during thermoforming of thermoplastic composites. A reliable prediction of the forming process requires an accurate description of the bending behavior. To this end, a characterization method for the bending of composites under thermoforming conditions has been developed. Experiments are performed with an in-house developed bending setup and are analyzed with an analytical model, which is derived in this paper. The model describes the composite with linear elastic fibers and a matrix material that behaves as a shear thinning power law fluid. The model can represent the characteristic behavior that is measured in bending experiments with unidirectional carbon fiber reinforced PA6 composites.

    Original languageEnglish
    Pages (from-to)333-341
    Number of pages9
    JournalComposites Part A: Applied Science and Manufacturing
    Volume100
    DOIs
    Publication statusPublished - 1 Sep 2017

    Fingerprint

    Thermoplastics
    Thermoforming
    Fibers
    Composite materials
    Shear thinning
    Carbon fibers
    Analytical models
    Experiments
    Fluids

    Keywords

    • A. Polymer-matrix composites (PMCs)
    • C. Analytical modeling
    • D. Mechanical testing

    Cite this

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    title = "Viscoelastic bending model for continuous fiber-reinforced thermoplastic composites in melt",
    abstract = "Bending of single plies or stacks of multiple plies is an essential deformation mechanism during thermoforming of thermoplastic composites. A reliable prediction of the forming process requires an accurate description of the bending behavior. To this end, a characterization method for the bending of composites under thermoforming conditions has been developed. Experiments are performed with an in-house developed bending setup and are analyzed with an analytical model, which is derived in this paper. The model describes the composite with linear elastic fibers and a matrix material that behaves as a shear thinning power law fluid. The model can represent the characteristic behavior that is measured in bending experiments with unidirectional carbon fiber reinforced PA6 composites.",
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    author = "U. Sachs and R. Akkerman",
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    Viscoelastic bending model for continuous fiber-reinforced thermoplastic composites in melt. / Sachs, U.; Akkerman, R.

    In: Composites Part A: Applied Science and Manufacturing, Vol. 100, 01.09.2017, p. 333-341.

    Research output: Contribution to journalArticleAcademicpeer-review

    TY - JOUR

    T1 - Viscoelastic bending model for continuous fiber-reinforced thermoplastic composites in melt

    AU - Sachs, U.

    AU - Akkerman, R.

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    N2 - Bending of single plies or stacks of multiple plies is an essential deformation mechanism during thermoforming of thermoplastic composites. A reliable prediction of the forming process requires an accurate description of the bending behavior. To this end, a characterization method for the bending of composites under thermoforming conditions has been developed. Experiments are performed with an in-house developed bending setup and are analyzed with an analytical model, which is derived in this paper. The model describes the composite with linear elastic fibers and a matrix material that behaves as a shear thinning power law fluid. The model can represent the characteristic behavior that is measured in bending experiments with unidirectional carbon fiber reinforced PA6 composites.

    AB - Bending of single plies or stacks of multiple plies is an essential deformation mechanism during thermoforming of thermoplastic composites. A reliable prediction of the forming process requires an accurate description of the bending behavior. To this end, a characterization method for the bending of composites under thermoforming conditions has been developed. Experiments are performed with an in-house developed bending setup and are analyzed with an analytical model, which is derived in this paper. The model describes the composite with linear elastic fibers and a matrix material that behaves as a shear thinning power law fluid. The model can represent the characteristic behavior that is measured in bending experiments with unidirectional carbon fiber reinforced PA6 composites.

    KW - A. Polymer-matrix composites (PMCs)

    KW - C. Analytical modeling

    KW - D. Mechanical testing

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