Large-deflection and nonlinear vibration of multilayered sandwich plates

AIAA Journal ◽  
1987 ◽  
Vol 25 (1) ◽  
pp. 130-133 ◽  
Author(s):  
S. V. Rajagopal ◽  
Gajbir Singh ◽  
Y.V.K. Sadasiva Rao
Keyword(s):  
Nonlinear Vibration ◽  
Large Deflection ◽  
Sandwich Plates

Nonlinear Vibration Analysis of Viscoelastic Smart Sandwich Plates Through the use of Fractional Derivative Zener Model

2021 ◽  
pp. 2150061
Author(s):  
Hamid Reza Talebi Amanieh ◽  
Seyed Alireza Seyed Roknizadeh ◽  
Arash Reza
Keyword(s):  
Differential Equations ◽  
Fractional Derivative ◽  
Nonlinear Vibration ◽  
Fractional Order ◽  
Sandwich Plate ◽  
Functionally Graded ◽  
Viscoelastic Layer ◽  
Sandwich Plates ◽  
Multiple Time ◽  
Nonlinear Frequency

In this paper, the nonlinear vibrational behavior of a sandwich plate with embedded viscoelastic material is studied through the use of constitutive equations with fractional derivatives. The studied sandwich structure is consisted of a viscoelastic core that is located between the faces of functionally graded magneto-electro-elastic (FG-MEE). In order to determine the frequency-dependent feature of the viscoelastic layer, four-parameter fractional derivative model is utilized. The material properties of FG-MEE face sheets have been distributed considering the power law scheme along the thickness. In addition, for derivation of the governing equations on the sandwich plate, first-order shear deformation plate theory along with von Karman-type of kinematic nonlinearity are implemented. The derived partial differential equations (PDEs) have been transformed to the ordinary differential equations (ODEs) through the Galerkin method. After that, the nonlinear vibration equations for the sandwich plate have been solved by multiple time scale perturbation technique. Moreover, for evaluating the effect of different parameters such as electric and magnetic fields, fractional order, the ratio of the core-to-face thickness and the power low index on the nonlinear vibration characteristics of sandwich plates with FG-MEE face sheets, the parametric analysis has been performed. The obtained results revealed the enhanced nonlinear natural frequency through an increment in the fractional order. Furthermore, the prominent influence of fractional order on the nonlinear frequency of sandwich plate was declared at the negative electric potential and positive magnetic potential.

Large Deflection of Rectangular Sandwich Plates

AIAA Journal ◽  
1967 ◽  
Vol 5 (9) ◽  
pp. 1706-1708 ◽  
Author(s):  
HAN-PIN KAN ◽  
JU-CHIN HUANG
Keyword(s):  
Large Deflection ◽  
Sandwich Plates ◽  
Rectangular Sandwich Plates

Large deflection of sandwich plates with orthotropic cores

AIAA Journal ◽  
1964 ◽  
Vol 2 (10) ◽  
pp. 1820-1822 ◽  
Author(s):  
A. M. ALWAN
Keyword(s):  
Large Deflection ◽  
Sandwich Plates

The Resistance of Metallic Sandwich Plates to Blast Loading

2011 ◽  
Vol 462-463 ◽  
pp. 349-354 ◽  
Author(s):  
Jian Xun Zhang ◽  
Qing Hua Qin ◽  
Tie Jun Wang
Keyword(s):  
Large Deflection ◽  
Blast Loading ◽  
Metallic Foam ◽  
Sandwich Plates ◽  
Foam Core ◽  
Equivalent Weight ◽  
Compressive Stresses ◽  
Trapezoidal Plate

The resistance of metallic sandwich plates to blast loading is studied in this work. Two typical cores, i.e. trapezoidal plate core and metallic foam core are considered in the analysis. The normal and longitudinal compressive stresses of the trapezoidal plate core are analytically and numerically obtained. Large deflection and resistance of metallic sandwich plates to blast loading are numerically analyzed. The results are compared with that of monolithic solid plates made of the same material and having equivalent weight. It is shown that the well-designed sandwich plates possess higher resistance to blast loading than monolithic solid plates.

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