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

Abstract

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.

Keywords

Web-core sandwich plates shear deformation elasticity solution Levy-type approach

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References

Zenkert

. The handbook of sandwich construction, UK: EMAS Publishing, 1997.

Ehlers

Tabri

Romanoff

et al.

Numerical and experimental investigation on the collision resistance of the x-core structure. Ships Offshore Struct 2012; 7: 1–9.

Fung

Tan

Lok

. Elastic constants for z-core sandwich panels. J Struct Eng 1994; 120: 3046–3055.

Bartolozzi

Baldanzini

Pierini

. Equivalent properties for corrugated cores of sandwich structures: a general analytical method. Compos Struct 2014; 108: 736–746.

Nordstrand

Carlsson

Allen

. Transverse shear stiffness of structural core sandwich. Compos Struct 1994; 27: 317–329.

Xia

Friswell

Flores

. Equivalent models of corrugated panels. Int J Solids Struct 2012; 49: 1453–1462.

Cheng

Lee

. A numerical analysis approach for evaluating elastic constants of sandwich structures with various cores. Compos Struct 2006; 74: 226–236.

Burton

Noor

. Assessment of computational models for sandwich panels and shells. Comput Meth Appl Mech Eng 1995; 124: 125–151.

Burton

Noor

. Assessment of continuum models for sandwich panel honeycomb cores. Comput Meth Appl Mech Eng 1997; 145: 341–360.

10.

Romanoff

Varsta

. Bending response of web-core sandwich plates. Compos Struct 2007; 81: 292–302.

11.

Kapania

Soliman

Vasudeva

et al.

Static analysis of sandwich panels with square panels with square honeycomb core. AIAA J 2008; 46: 627–634.

12.

Jelovica

Romanoff

. Load-carrying behaviour of web-core sandwich plates in compression. Thin-Walled Struct 2013; 73: 264–272.

13.

Liu

Cheng

et al.

A semi-analytical method for bending, buckling, and free vibration analyses of sandwich panels with square-honeycomb cores. Int J Struct Stabil Dyn 2010; 10: 127–151.

14.

Cheng

Liu

. Precise bending stress analysis of corrugated-core, honeycomb-core and x-core sandwich panels. Compos Struct 2012; 94: 1656–1668.

15.

Pydah

Bhaskar

. An accurate discrete model for web-core sandwich plates. J Sandwich Struct Mater 2015. doi 10.1177/1099636215603027.

16.

Bhaskar

Varadan

. Plates – theory and applications, UK: Wiley, 2014.