Study on the Out-Plane Size Effects of Honeycomb Sandwich Panels

Shi Ping Sun; Yu Dong Lai

doi:10.4028/www.scientific.net/AMM.66-68.1550

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 66-68Study on the Out-Plane Size Effects of Honeycomb...

Study on the Out-Plane Size Effects of Honeycomb Sandwich Panels

Abstract:

A computational model, which can reveal the out-plane size variation of sandwich panel unit cell, is proposed to study the out-plane size effects of honeycomb sandwich panels. In this model, the three dimensional unit cell of sandwich panel, consisting of the upper and the lower skins and the homogenized core, is constructed based on homogenization method. Three methods, i.e., homogenization method, the finite element method and the classical laminated plate theory, are used to study the influences of the out-plane size variation on the bending effect and vibration response of sandwich panel. Numerical results show that the solution of finite element method agrees with that of laminated plate theory when the number of out-plane unit cell is small. However, once the number of out-of-plane unit cell is large enough, the finite element solution is close to the homogenization results.

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Periodical:

Applied Mechanics and Materials (Volumes 66-68)

Pages:

1550-1555

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.66-68.1550

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Online since:

July 2011

Authors:

Shi Ping Sun, Yu Dong Lai

Keywords:

Classical Laminated Plate Theory, Finite Element Model (FEM), Homogenization Method, Honeycomb Sandwich Panel, Size Effect

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