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Steel and Composite Structures   Volume 21, Number 6, August30 2016, pages 1287-1306
DOI: http://dx.doi.org/10.12989/scs.2016.21.6.1287
 
Buckling analysis of isotropic and orthotropic plates using a novel four variable refined plate theory
Fouad Bourada, Khaled Amara and Abdelouahed Tounsi

 
Abstract     [Buy Article]
    The current research presents a buckling analysis of isotropic and orthotropic plates by proposing a new four variable refined plate theory. Contrary to the existing higher order shear deformation theories (HSDT) and the first shear deformation theory (FSDT), the proposed model uses a new displacement field which incorporates undetermined integral terms and involves only four variables. The governing equations for buckling analysis are deduced by utilizing the principle of virtual works. The analytical solution of a simply supported rectangular plate under the axial loading has been determined via the Navier method. Numerical investigations are performed by using the proposed model and the obtained results are compared with CPT solutions, FSDT solutions, and the existing exact solutions in the literature. It can be concluded that the developed four variable refined plate theory, which does not use shear correction coefficient, is not only simple but also comparable to the FSDT.
 
Key Words
    refined plate theory; buckling analysis; isotropic plate; orthotropic plate
 
Address
(1) Fouad Bourada:
Laboratoire des Structures Intelligentes, Département de Génie Civil, Institut des Sciences et de la Technologie, Centre Universitaire de Ain Témouchent, Algeria;
(2) Khaled Amara, Abdelouahed Tounsi:
Material and Hydrology Laboratory, University of Sidi Bel Abbes, Faculty of Technology, Civil Engineering Department, Algeria;
(3) Khaled Amara:
Département de Génie Civil, Institut des Sciences et de la Technologie, Centre Universitaire de Ain Témouchent, Algeria.
 

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