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Experimental and Numerical Analysis of Composite Folded Sandwich Core Structures Under Compression

Heimbs, Sebastian and Middendorf, Peter and Kilchert, Sebastian and Johnson, Alastair F. and Maier, Martin (2007) Experimental and Numerical Analysis of Composite Folded Sandwich Core Structures Under Compression. Applied Composite Materials, 14 (5-6), pp. 363-377. Springer Science+Business Media.

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Official URL: http://www.springerlink.com/content/j2562351311xx433/?p=06d68828ff0743c6855fc8224c79bbc3&pi=0


The characterisation of the mechanical behaviour of folded core structures for advanced sandwich composites under flatwise compression load using a virtual testing approach is presented. In this context dynamic compression test simulations with the explicit solvers PAM-CRASH and LS-DYNA are compared to experimental data of two different folded core structures made of aramid paper and carbon fibre-reinforced plastic (CFRP). The focus of the investigations is the constitutive modelling of the cell wall material, the consideration of imperfections and the representation of cell wall buckling, folding or crushing phenomena. The consistency of the numerical results shows that this can be a promising and efficient approach for the determination of the effective mechanical properties and a cell geometry optimisation of folded core structures.

Item URL in elib:https://elib.dlr.de/54219/
Document Type:Article
Title:Experimental and Numerical Analysis of Composite Folded Sandwich Core Structures Under Compression
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Heimbs, SebastianEADS Innovation WorksUNSPECIFIEDUNSPECIFIED
Middendorf, PeterEADS Innovation WorksUNSPECIFIEDUNSPECIFIED
Maier, MartinKaiserslautern University of TechnologyUNSPECIFIEDUNSPECIFIED
Date:November 2007
Journal or Publication Title:Applied Composite Materials
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 363-377
Publisher:Springer Science+Business Media
Keywords:Folded core, Sandwich structures, Compression testing, Numerical simulation
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Structures & Materials (old)
Location: Stuttgart
Institutes and Institutions:Institute of Structures and Design > Structural Integrity
Deposited By: Kilchert, Sebastian
Deposited On:26 May 2008
Last Modified:27 Apr 2009 14:58

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