Hygrothermal modeling of the buckling behavior of sandwich plates with nanocomposite face sheets resting on a Pasternak foundation

2020 ◽  
Author(s):  
Faraz Kiarasi ◽  
Masoud Babaei ◽  
Rossana Dimitri ◽  
Francesco Tornabene
Keyword(s):  
Sandwich Plates ◽  
Pasternak Foundation ◽  
Buckling Behavior

scholarly journals Influence of the visco-Pasternak foundation parameters on the buckling behavior of a sandwich functional graded ceramic–metal plate in a hygrothermal environment

2022 ◽  
Vol 170 ◽  
pp. 108549
Author(s):  
Mohamad W. Zaitoun ◽  
Abdelbaki Chikh ◽  
Abdelouahed Tounsi ◽  
Mohammed A. Al-Osta ◽  
Alfarabi Sharif ◽  
...  
Keyword(s):  
Metal Plate ◽  
Pasternak Foundation ◽  
Buckling Behavior ◽  
Hygrothermal Environment ◽  
Foundation Parameters

Analysis of Buckling of Sandwich Plates with Viscoelastic Core Using Layerwise Theory

2015 ◽  
Vol 798 ◽  
pp. 462-469 ◽  
Author(s):  
Arash Ranjbaran ◽  
Mohammad Reza Khoshravan ◽  
Mahsa Kharazi
Keyword(s):  
Composite Laminates ◽  
Ritz Method ◽  
Computational Cost ◽  
Shear Deformation Theory ◽  
Element Model ◽  
Sandwich Plates ◽  
Layerwise Theory ◽  
Buckling Behavior ◽  
Viscoelastic Core ◽  
Good Agreement

Sandwich plates are one of the important components in construction of engineering and especially aerospace structures. In this paper, buckling analysis of sandwich plates was investigated experimentally and analytically using layerwise theory. The sandwich plate was rectangular and made of two composite laminates as skins and a viscoelastic core. The formulation was based on the first order shear deformation theory and the Rayleigh-Ritz method was used for approximating and determining the displacement field. The behavior of viscoelastic material modeled using Zener three-element model. The results obtained from layerwise theory compared with experimental results and showed good agreement. This study demonstrated that, layerwise theory could describe buckling behavior of sandwich plates with high accuracy and represents more realistic and acceptable description of behavior of the plates with much less computational cost.

Thermal buckling behavior in Al honeycomb sandwich plates with very thin CFRP faces

1997 ◽  
Author(s):  
Naoyuki Watanabe ◽  
Hiroyuki Sato ◽  
Yasushi Hishi ◽  
Naoyuki Watanabe ◽  
Hiroyuki Sato ◽  
...  
Keyword(s):  
Thermal Buckling ◽  
Sandwich Plates ◽  
Buckling Behavior ◽  
Honeycomb Sandwich

Free vibration and buckling characteristics of laminated composite and sandwich plates implementing a secant function based shear deformation theory

2014 ◽  
Vol 229 (3) ◽  
pp. 391-406 ◽  
Author(s):  
Neeraj Grover ◽  
Bhrigu N Singh ◽  
Dipak K Maiti
Keyword(s):  
Finite Element ◽  
Free Vibration ◽  
Shear Deformation ◽  
Deformation Theory ◽  
Shear Deformation Theory ◽  
Laminated Composite ◽  
Present Theory ◽  
Sandwich Plates ◽  
Element Analysis ◽  
Buckling Behavior

A generalized finite element modeling of recently developed secant function based shear deformation theory is formulated and implemented for free vibration and buckling characteristics of laminated-composite and sandwich plates. The shear deformation is expressed in terms of a secant function of thickness coordinate. The theory inherently satisfies the zero transverse shear conditions on top and bottom surfaces of the plate. An eight-noded C0 continuous element is chosen by an adequate choice of nodal field variables. The governing equations are obtained for the free vibration and buckling responses of laminated-composite and sandwich plates. Intensive numerical experiments are conducted to investigate the influence of span-thickness ratio, boundary conditions, etc. on the free vibration and buckling behavior. The comparison of present results with the published results indicates the performance and range of applicability of the present theory in the framework of finite element analysis.

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