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

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...

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Bibliographic Details
Published in:International journal of structural integrity 2014-11, Vol.5 (4), p.262-278
Main Authors: Sellitto, A, Borrelli, R, Caputo, F, Riccio, A, Scaramuzzino, F
Format: Article
Language:English
Subjects:
Composite materials
Engineering
Failure analysis
Finite element analysis
Materials science
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Summary: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.
ISSN:1757-9864
1757-9872
DOI:10.1108/IJSI-06-2013-0011