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Experimental and numerical investigation of the effect of asymmetry on the residual strength of a composite sandwich panel

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journal contribution
posted on 10.04.2015, 15:14 by Chris James, Andrew WatsonAndrew Watson, Paul CunninghamPaul Cunningham
Asymmetric sandwich panels with skins of differing thickness are subjected to various degrees of damage via quasi-static indentation before compressive loading to failure. These are compared with panels with skins of equal thickness. The experiments show that the asymmetric panels experience an improvement in strength with small amounts of indentation compared with undamaged asymmetric panels, and for more severe damage, show greater residual strength than the symmetric panels. The two configurations are numerically modelled using Abaqus, including inter- and intra-laminar damage, and core crushing. The strength predictions from the models agree well with the experiments.

Funding

This work has been funded by the Department of Automotive and Aeronautical Engineering at Loughborough University, as part of a PhD research project.

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Aeronautical and Automotive Engineering

Published in

Journal of Sandwich Structures and Materials

Citation

JAMES, C.T., WATSON, A. and CUNNINGHAM, P., 2015. Experimental and numerical investigation of the effect of asymmetry on the residual strength of a composite sandwich panel. Journal of Sandwich Structures and Materials, 17(4), pp.417-445.

Publisher

SAGE Publications / © The Author(s)

Version

AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2015

Notes

This paper was accepted for publication in the Journal of Sandwich Structures and Materials and the definitive published version is available at: http://dx.doi.org/10.1177/1099636215577348

ISSN

1530-7972

Language

en