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Numerical prediction of damage in composite structures from soft body impacts

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Abstract

The paper summarises recent progress on materials modelling and numerical simulation of soft body impact damage in fibre reinforced composite aircraft structures. The work is based on the application of finite element (FE) analysis codes to simulate damage in composite shell structures under impact loads. Composites ply damage models and interply delamination models have been developed and implemented in commercial explicit FE codes. Models are discussed for predicting impact loads on aircraft structures arising from deformable soft bodies such as gelatine (synthetic bird) and ice (hailstone). The composites failure models and code developments are briefly summarised and applied in the paper to numerical simulation of synthetic bird impact on idealised composite aircraft structures.

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Acknowledgements

Some of the work presented was developed in the EU project CRAHVI [12]. The authors wish to acknowledge financial support from the CEC and the CRAHVI partners for their valuable collaboration.

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Authors and Affiliations

  1. German Aerospace Center (DLR), Institute of Structures and Design, Stuttgart, Germany

    Alastair F. Johnson & Martin Holzapfel

Authors
  1. Alastair F. Johnson
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  2. Martin Holzapfel
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Correspondence to Alastair F. Johnson.

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Johnson, A. ., Holzapfel, M. Numerical prediction of damage in composite structures from soft body impacts. J Mater Sci 41, 6622–6630 (2006). https://doi.org/10.1007/s10853-006-0201-x

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  • DOI: https://doi.org/10.1007/s10853-006-0201-x

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