Nonlinear Dynamic Analysis of Plates Stiffened by Parallel Beams with Deformable Connection

In this paper a general solution to the geometrically nonlinear dynamic analysis of plates stiffened by arbitrarily placed parallel beams of arbitrary doubly symmetric cross-section, subjected to dynamic loading, is presented. The plate-beam structure is assumed to undergo moderate large deflections...

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Main Authors: J. A. Dourakopoulos, E. J. Sapountzakis
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:Advances in Civil Engineering
Online Access:http://dx.doi.org/10.1155/2014/942763
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author J. A. Dourakopoulos
E. J. Sapountzakis
author_facet J. A. Dourakopoulos
E. J. Sapountzakis
author_sort J. A. Dourakopoulos
collection DOAJ
description In this paper a general solution to the geometrically nonlinear dynamic analysis of plates stiffened by arbitrarily placed parallel beams of arbitrary doubly symmetric cross-section, subjected to dynamic loading, is presented. The plate-beam structure is assumed to undergo moderate large deflections and the nonlinear analysis is carried out by retaining nonlinear terms in the kinematical relations. According to the proposed model, the arbitrarily placed parallel stiffening beams are isolated from the plate by sections in the lower outer surface of the plate, making the hypothesis that the plate and the beams can slip in all directions of the connection without separation and taking into account the arising tractions in all directions at the fictitious interfaces. These tractions are integrated with respect to each half of the interface width resulting in two interface lines, along which the loading of the beams and the additional loading of the plate are defined. Six boundary value problems are formulated and solved using the analog equation method (AEM), a BEM-based method. Both free and forced transverse vibrations are considered and numerical examples with great practical interest are presented demonstrating the effectiveness, wherever possible, the accuracy, and the range of applications of the proposed method.
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spelling doaj-art-feb083279ae44d32bb7f02609f5759a62025-02-03T05:46:44ZengWileyAdvances in Civil Engineering1687-80861687-80942014-01-01201410.1155/2014/942763942763Nonlinear Dynamic Analysis of Plates Stiffened by Parallel Beams with Deformable ConnectionJ. A. Dourakopoulos0E. J. Sapountzakis1School of Civil Engineering, National Technical University of Athens, Zografou Campus, GR-157 80 Athens, GreeceSchool of Civil Engineering, National Technical University of Athens, Zografou Campus, GR-157 80 Athens, GreeceIn this paper a general solution to the geometrically nonlinear dynamic analysis of plates stiffened by arbitrarily placed parallel beams of arbitrary doubly symmetric cross-section, subjected to dynamic loading, is presented. The plate-beam structure is assumed to undergo moderate large deflections and the nonlinear analysis is carried out by retaining nonlinear terms in the kinematical relations. According to the proposed model, the arbitrarily placed parallel stiffening beams are isolated from the plate by sections in the lower outer surface of the plate, making the hypothesis that the plate and the beams can slip in all directions of the connection without separation and taking into account the arising tractions in all directions at the fictitious interfaces. These tractions are integrated with respect to each half of the interface width resulting in two interface lines, along which the loading of the beams and the additional loading of the plate are defined. Six boundary value problems are formulated and solved using the analog equation method (AEM), a BEM-based method. Both free and forced transverse vibrations are considered and numerical examples with great practical interest are presented demonstrating the effectiveness, wherever possible, the accuracy, and the range of applications of the proposed method.http://dx.doi.org/10.1155/2014/942763
spellingShingle J. A. Dourakopoulos
E. J. Sapountzakis
Nonlinear Dynamic Analysis of Plates Stiffened by Parallel Beams with Deformable Connection
Advances in Civil Engineering
title Nonlinear Dynamic Analysis of Plates Stiffened by Parallel Beams with Deformable Connection
title_full Nonlinear Dynamic Analysis of Plates Stiffened by Parallel Beams with Deformable Connection
title_fullStr Nonlinear Dynamic Analysis of Plates Stiffened by Parallel Beams with Deformable Connection
title_full_unstemmed Nonlinear Dynamic Analysis of Plates Stiffened by Parallel Beams with Deformable Connection
title_short Nonlinear Dynamic Analysis of Plates Stiffened by Parallel Beams with Deformable Connection
title_sort nonlinear dynamic analysis of plates stiffened by parallel beams with deformable connection
url http://dx.doi.org/10.1155/2014/942763
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AT ejsapountzakis nonlineardynamicanalysisofplatesstiffenedbyparallelbeamswithdeformableconnection