Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10283810 | Composite Structures | 2012 | 11 Pages |
Abstract
Numerical simulations of the experimental tests performed with a pressurized composite stiffened panel are presented in this paper. As a consequence of the high slenderness of this structural typology, pressure caused the panel to enter the postbuckling regime. Previous experimental tests showed that the panel had a large safe postbuckling range, the experimental collapse pressure being over four times the first buckling load. Due to the relevant influence of the geometric imperfections on the global response, a procedure for taking into account actual imperfections in the development of the models is proposed. This procedure can be used as a tool to facilitate the modeling of the actual geometry of the panel, mainly the zone of the skin located between the stringers. A satisfactory agreement with experimental results has been reached using the proposed procedure.
Related Topics
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Authors
A. Blázquez, J. Reinoso, F. ParÃs, J. Cañas,