Reference : Shear stresses in honeycomb sandwich plates: Analytical solution, finite element meth...

	Document type :	Scientific journals : Article
	Discipline(s) :	Engineering, computing & technology : Materials science & engineering
	To cite this reference:	http://hdl.handle.net/10993/9845

Title :	Shear stresses in honeycomb sandwich plates: Analytical solution, finite element method and experimental verification
Language :	English
Author, co-author :	Wahl, Laurent [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit]
	Maas, Stefan [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
	Waldmann, Danièle [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
	Zürbes, Arno [Fachhochschule Bingen]
	Frères, Patrick [Eurocomposites Echternach]
Publication date :	2012
Journal title :	Journal of Sandwich Structures & Materials
Publisher :	SAGE Publications
Volume :	4
Pages :	449-468
Peer reviewed :	Yes (verified by ORBilu)
ISSN :	1099-6362
Keywords :	[en] shear in honeycomb sandwich ; homogenisation of orthotropic plates
Abstract :	[en] Honeycomb composite structures are used in airplanes, railway cars and vehicles. The sandwich panels consist of two stiff face sheets of aluminium, which are bonded to a very lightweight honeycomb core of aluminium. Compared to normal plates, sandwich panels have a very high stiffness and simultaneously a low weight. The core of these structures is mainly subjected to shear stresses. The shear stresses depend strongly on the angle of the load application. The distribution and the level of the shear stresses are investigated using analytical calculations. The load direction which induces highest stresses in the honeycomb core is derived. This direction is not the W-direction, which is the most compliant one. When doing finite element simulations of honeycomb cores, often the core is homogenized in order to reduce the calculation time. In this article, some equations are derived in order to calculate the real shear stresses from the shear stresses of the homogeneous core. The equations are validated by finite element simulations and partially by tests. Three-point bending tests and additionally some Food Cart Roller Tests were conducted in order to test the panels in different angles.
Funders :	University of Luxembourg - UL and Eurocomposites
Name of the research project :	F1R-ING-PUL-09WAB2 > WABEN 2 > > MAAS Stefan
Permalink :	http://hdl.handle.net/10993/9845
Mentions required by the publisher for OA :	The original publication is available at the journal

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