An accurate discrete model and analytical solutions thereof are presented for shear-deformable web-core sandwich plates. The face-plates are analyzed using the equations of three-dimensional elasticity, while the webs are accurately modelled using the classical plate theory with a plane stress solution for transverse bending and a Levy-type methodology for lateral bending. It is shown that this obviates the need for a complete three-dimensional analysis of the sandwich plate. Results obtained by this approach are used to highlight the effect of shear deformation of the face-plates. © 2016, © The Author(s) 2016.

K. Bhaskar

Department of Aerospace Engineering

ELASTICITY

Shear deformation

CLASSICAL PLATE THEORY

DISCRETE MODELING

ELASTICITY SOLUTIONS

LEVY-TYPE APPROACH

Sandwich plates

Three-dimensional analysis

Three-dimensional elasticity

TRANSVERSE BENDING

Shear flow

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IIT Madras

Accurate analytical solutions for shear-deformable web-core sandwich plates:

Journal of Sandwich Structures and Materials

An accurate discrete model is presented here for the analysis of simply supported web-core sandwich plates. In this model, the face plates are analysed using the equations of 3D elasticity and for the webs a plane stress idealization is used to model the kinematics of transverse bending while simple one-dimensional classical models are employed for lateral bending and torsion. Thus, this model accounts for the non-classical effects of transverse shear deformation and transverse thickness-stretch in the face-plates and the webs. It is shown that this model is capable of accurately capturing the effects of secondary local bending of the face-plates between the webs on the displacement and stress fields. Results obtained by this rigorous approach are used to highlight the errors of the commonly used model based on the classical hairbrush hypothesis for the face-plates. © 2015, © The Author(s) 2015.

Fulltext

An accurate discrete model for web-core sandwich plates

Plates

Classical Plate Theory

Composite Structures

Equivalent properties for corrugated cores of sandwich structures: A general analytical method

Journal	Data powered by TypesetJournal of Sandwich Structures and Materials
Publisher	Data powered by TypesetSAGE Publications Ltd
ISSN	10996362
Open Access	No