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Anisotropic Creep Analysis of Fiber Reinforced Load Point Support Structures for Thermoplastic Sandwich Panels

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Creep in Structures VI (IUTAM 2023)

Part of the book series: Advanced Structured Materials ((STRUCTMAT,volume 194))

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Abstract

The present contribution is concerned with a numerical analysis of creep in load point support structures for sandwich panels made from different fiber reinforced thermoplastic materials. Whereas the face sheets consist of laminates of unidirectional carbon fiber reinforced plies, the support structures for the load points consist of discontinuously long fiber reinforced thermoplastics manufactured in a compression molding process. The sandwich core is a thermoplastic foam. For the numerical creep analysis of such structures under long-term loading, an anisotropic viscoelastic material model is formulated. In different versions, the model is applicable either to unreinforced thermoplastics, or to thermoplastics with discontinuous or continuous fiber reinforcement. The material model is implemented into a finite element system. The model is validated against an experimental data base on both, coupon and structural level.

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Author information

Authors and Affiliations

  1. Fraunhofer-Institut für Werkstoffmechanik IWM, Wöhlerstr. 11, 79108, Freiburg, Germany

    Jörg Hohe & Sascha Fliegener

Authors
  1. Jörg Hohe
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  2. Sascha Fliegener
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Corresponding author

Correspondence to Jörg Hohe .

Editor information

Editors and Affiliations

  1. Chair of Engineering Mechanics, Institute of Mechanics, Otto-von-Guericke-University of Magdeburg, Magdeburg, Germany

    Holm Altenbach

  2. Chair of Engineering Mechanics, Institute of Mechanics, Otto-von-Guericke-University of Magdeburg, Magdeburg, Sachsen-Anhalt, Germany

    Konstantin Naumenko

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© 2023 The Author(s), under exclusive license to Springer Nature Switzerland AG

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Hohe, J., Fliegener, S. (2023). Anisotropic Creep Analysis of Fiber Reinforced Load Point Support Structures for Thermoplastic Sandwich Panels. In: Altenbach, H., Naumenko, K. (eds) Creep in Structures VI. IUTAM 2023. Advanced Structured Materials, vol 194. Springer, Cham. https://doi.org/10.1007/978-3-031-39070-8_11

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