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FE modelling of phenolic resin impregnated aramid paper adopted in foldcore sandwich cores

Kilchert, Sebastian and Johnson, Alastair F. and Voggenreiter, Heinz (2008) FE modelling of phenolic resin impregnated aramid paper adopted in foldcore sandwich cores. In: The Ninth International Conference on Computational Structures Technology, Athen, 2008. Civil-Comp Press. CST 2008, 2008, Athen, 2008-09-02 - 2008-09-05, Athen, Greece.

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Abstract

The adaption and validation of an elastic-damage material model for aramid paper used in foldcore structures is presented. Aramid paper structures under compression fail in a complex buckling mode combined with face cracking at the buckle peaks. The constitutive modelling was adapted to shell elements in the explicit solver PAMCRASH with consideration of this particular compressive behaviour. The model was compared to test data of tensile tests, cylinder crushing tests and different loads on foldcore structures. The numerical results showed consistency with the experimental data in particular during foldcore collapse. However the material model slightly underestimated the foldcore residual strength in case of foldcore compaction.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:FE modelling of phenolic resin impregnated aramid paper adopted in foldcore sandwich cores
Authors:
AuthorsInstitution or Email of Authors
Kilchert, SebastianUNSPECIFIED
Johnson, Alastair F.UNSPECIFIED
Voggenreiter, HeinzUNSPECIFIED
Date:September 2008
Journal or Publication Title:The Ninth International Conference on Computational Structures Technology, Athen, 2008
Refereed publication:No
In SCOPUS:No
In ISI Web of Science:No
Publisher:Civil-Comp Press
Status:Accepted
Keywords:sandwich panel, foldcore, FE modelling, material model, aramid paper, honeycomb
Event Title:CST 2008, 2008, Athen
Event Location:Athen, Greece
Event Type:international Conference
Event Dates:2008-09-02 - 2008-09-05
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Structures & Materials
Location: Stuttgart
Institutes and Institutions:Institute of Structures and Design > Structural Integrity
Deposited By: Sebastian Kilchert
Deposited On:09 Jun 2008
Last Modified:27 Apr 2009 14:58

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