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Buckling analysis of a delaminated panel by using a kinematic global-local coupling approach

A. Sellitto (Department of Aerospace and Mechanical Engineering, Second University of Naples, Aversa, Italy)
R. Borrelli (Aerostructural Design Laboratory, CIRA – Italian Aerospace Research Centre, Capua, Italy)
F. Caputo (Department of Aerospace and Mechanical Engineering, Second University of Naples, Aversa, Italy)
A. Riccio (Department of Aerospace and Mechanical Engineering, Second University of Naples, Aversa, Italy)
F. Scaramuzzino (Department of Aerospace and Mechanical Engineering, Second University of Naples, Aversa, Italy)

International Journal of Structural Integrity

ISSN: 1757-9864

Article publication date: 11 November 2014

Abstract

Purpose

The purpose of this paper is to investigate on the behaviour of a delaminated stiffened panel; the delamination growth is simulated via fracture elements implemented in B2000++® code based on the Modified Virtual Crack Closure Technique (MVCCT), matrix cracking and fibre failure have been also taken into account.

Design/methodology/approach

In order to correctly apply the MVCCT on the delamination front a very fine three-dimensional (3D) mesh is required very close to the delaminated area, while a 2D-shell model has been employed for the areas of minor interest. In order to couple the shell domain to the solid one, shell-to-solid coupling elements based on kinematic constraints have been used.

Findings

Results obtained with the global/local approach are in good correlation with those obtained with experimental results.

Originality/value

The global/local approach based on kinematic coupling elements in conjunction with fracture elements allows to investigate and predict the behaviour of a stiffened delaminated composite panel in an efficient and effective way.

Keywords

Acknowledgements

The research leading to these results has received funding from the European Community’s Seventh Framework Programme (FP7/2007-2013) under grant agreement no. 234147.

Citation

Sellitto, A., Borrelli, R., Caputo, F., Riccio, A. and Scaramuzzino, F. (2014), "Buckling analysis of a delaminated panel by using a kinematic global-local coupling approach", International Journal of Structural Integrity, Vol. 5 No. 4, pp. 262-278. https://doi.org/10.1108/IJSI-06-2013-0011

Publisher

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Emerald Group Publishing Limited

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