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Multiscale Modeling Methods for Analysis of Failure Modes in Foldcore Sandwich Panels

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Abstract

The paper presents an homogenised core model suitable for use in the analysis of fuselage sandwich panels with folded composite cores under combined loading conditions. Within a multiscale numerical design process a failure criterion was derived for describing the macroscopic behaviour of folded cores under combined loading using a detailed foldcore micromodel. The multiscale modelling method was validated by simulation of combined compression/bending failure of foldcore sandwich panels.

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Acknowledgments

The research leading to these results has received funding from the Helmholtz Association of German Research Centres. The authors gratefully acknowledge the funding of the research activities.

Conflict of Interest

The authors declare that they have no conflict of interest.

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Authors and Affiliations

  1. Institute of Structures and Design, German Aerospace Center (DLR), Pfaffenwaldring 38-40, 70569, Stuttgart, Germany

    R. Sturm & P. Schatrow

  2. Institute of Aircraft Design, University of Stuttgart, Stuttgart, Germany

    Y. Klett

Authors
  1. R. Sturm
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  2. P. Schatrow
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  3. Y. Klett
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Correspondence to R. Sturm.

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Sturm, R., Schatrow, P. & Klett, Y. Multiscale Modeling Methods for Analysis of Failure Modes in Foldcore Sandwich Panels. Appl Compos Mater 22, 857–868 (2015). https://doi.org/10.1007/s10443-015-9440-9

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  • DOI: https://doi.org/10.1007/s10443-015-9440-9

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