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http://dx.doi.org/10.12989/scs.2019.32.2.173

On buckling analysis of laminated composite plates using a nonlocal refined four-variable model  

Shahsavari, Davood (Department of Mechanical Engineering, Marvdasht Branch, Islamic Azad University)
Karami, Behrouz (Department of Mechanical Engineering, Marvdasht Branch, Islamic Azad University)
Janghorban, Maziar (Department of Mechanical Engineering, Marvdasht Branch, Islamic Azad University)
Publication Information
Steel and Composite Structures / v.32, no.2, 2019 , pp. 173-187 More about this Journal
Abstract
This study is concerned with the stability of laminated composite plates modelled using Eringen's nonlocal differential model (ENDM) and a novel refined-hyperbolic-shear-deformable plate theory. The plate is assumed to be lying on the Pasternak elastic foundation and is under the influence of an in-plane magnetic field. The governing equations and boundary conditions are obtained through Hamilton's principle. An analytical approach considering Navier series is used to fine the critical bucking load. After verifying with existing results for the reduced cases, the present model is then used to study buckling of the laminated composite plate. Numerical results demonstrate clearly for the first time the roles of size effects, magnetic field, foundation parameters, moduli ratio, geometry, lay-up numbers and sequences, fiber orientations, and boundary conditions. These results could be useful for designing better composites and can further serve as benchmarks for future studies on the laminated composite plates.
Keywords
composite structures; buckling; magnetic field; Eringen nonlocal differential model;
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