Free vibration analysis of integrated and non-integrated corrugated core sandwich panels reinforced with weft-knitted fabrics

2020 ◽  
pp. 109963621990034
Author(s):  
Hamid Abedzade Atar ◽  
Mohammad Zarrebini ◽  
Hossein Hasani ◽  
Jalil Rezaeepazhand
Keyword(s):  
Free Vibration ◽  
Vibration Analysis ◽  
Sandwich Panels ◽  
Free Vibration Analysis ◽  
Knitted Fabrics

A modified state space differential quadrature method for free vibration analysis of soft-core sandwich panels

2017 ◽  
Vol 21 (6) ◽  
pp. 1843-1879 ◽  
Author(s):  
Balavishnu Udayakumar ◽  
KV Nagendra Gopal
Keyword(s):  
Free Vibration ◽  
Boundary Conditions ◽  
State Space ◽  
Vibration Analysis ◽  
Differential Quadrature Method ◽  
Sandwich Panels ◽  
Free Vibration Analysis ◽  
Differential Quadrature ◽  
Soft Core ◽  
Quadrature Method

Modifications and improvements to conventional state space differential quadrature method are proposed for free vibration analysis of thick, soft-core sandwich panels with arbitrary edge boundary conditions, using an exact two-dimensional elasticity model. The modifications are based on a systematic procedure to implement all possible combinations of edge boundary conditions including simply supported, clamped, free and guided edges. Natural frequencies and mode shapes are obtained and compared with exact elasticity solutions from state space method and approximate solution from finite element simulations; demonstrating the high numerical accuracy and rapid convergence of the modified method. Further, the proposed framework is compared to the conventional implementation of the state space differential quadrature method for thick cantilever sandwich panels and is shown to give results with better accuracy and faster convergence.

Free vibration analysis of coplanar sandwich panels

1997 ◽  
Vol 38 (1-4) ◽  
pp. 463-475 ◽  
Author(s):  
N.S. Bardell ◽  
J.M. Dunsdon ◽  
R.S. Langley
Keyword(s):  
Free Vibration ◽  
Vibration Analysis ◽  
Sandwich Panels ◽  
Free Vibration Analysis

Hybrid Sandwich Panels: A Review

2020 ◽  
Vol 25 (3) ◽  
pp. 64-85
Author(s):  
S.H. Sandeep ◽  
C.V. Srinivasa
Keyword(s):  
Free Vibration ◽  
Vibration Analysis ◽  
Sandwich Structures ◽  
Laminated Composites ◽  
Sandwich Panels ◽  
Free Vibration Analysis ◽  
Flexural Vibration ◽  
Analytical Models ◽  
Specific Strength ◽  
Fiber Metal

AbstractA high specific stiffness, high specific strength, and tailoring the properties for specific application have attracted the attention of the researchers to work in the field of laminated composites and Sandwich structures. Rapid use of these laminated composites and Sandwich structures necessitated the development of new theories that suitable for the bending, buckling and vibration analysis. Many articles were published on free vibration of beams, plates, shells laminated composites and sandwich structures. In this article, a review on free vibration analysis of shear deformable isotropic beams, plates, shells, laminated composites and sandwich structures based on various theories and the exact solution is presented. In addition to this, the literature on finite element modeling of beams, plates, shells laminated composites and sandwich structures based on classical and refined theories is also reviewed. The present article is an attempt to review the available literature, made in the past few decades on free flexural vibration response of Fiber Metal laminated Composites and Sandwich panels using different analytical models, numerical techniques, and experimental methods.

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