Buckling analysis of a delaminated panel by using a kinematic global-local coupling approach
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
:Emerald Group Publishing Limited
Copyright © 2014, Emerald Group Publishing Limited