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Structural Engineering and Mechanics
  Volume 64, Number 6, December25 2017 , pages 751-763
DOI: https://doi.org/10.12989/sem.2017.64.6.751
 


Buckling characteristics and static studies of multilayered magneto-electro-elastic plate
M.C. Kiran and S.C. Kattimani

 
Abstract
    This article deals with the buckling behaviour of multilayered magneto-electro-elastic (MEE) plate subjected to uniaxial and biaxial compressive (in-plane) loads. The constitutive equations of MEE material are used to derive a finite element (FE) formulation involving the coupling between electric, magnetic and elastic fields. The displacement field corresponding to first order shear deformation theory (FSDT) has been employed. The in-plane stress distribution within the MEE plate existing due to the enacted force is considered to be equivalent to the applied in-plane compressive load in the pre-buckling range. The same stress distribution is used to derive the potential energy functional. The non-dimensional critical buckling load is accomplished from the solution of allied linear eigenvalue problem. Influence of stacking sequence, span to thickness ratio, aspect ratio, load factor and boundary condition on critical buckling load and their corresponding mode shape is investigated. In addition, static deflection of MEE plate under the sinusoidal and the uniformly distributed load has been studied for different stacking sequences and boundary conditions.
 
Key Words
    magneto-electro-elastic plate; FSDT; finite element; buckling analysis; static studies; in-plane loads
 
Address
M.C. Kiran : Department of Mechanical Engineering, National Institute of Technology Karnataka, Surathkal 575025, India

S.C. Kattimani : Department of Mechanical Engineering, National Institute of Technology Karnataka, Surathkal 575025, India
 

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