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Stiffness and failure behaviour of folded sandwich cores under combined transverse shear and compression

Kintscher, Markus and Kärger, Luise and Wetzel, Anja and Hartung, Daniel (2007) Stiffness and failure behaviour of folded sandwich cores under combined transverse shear and compression. Composites Part A, 38 (5), pp. 1288-1295. Elsevier. DOI: 10.1016/j.compositesa.2006.11.008.

Full text not available from this repository.

Abstract

For efficiently simulating the failure behaviour of sandwich structures made of stiff face sheets and a light-weight core, macroscopic material stiffness and strength values are essential. The investigated folded cores are made from Nomex paper coated with epoxy resin. Due to their channel-like structure, folded cores are air ventilated, which can help to reduce the danger of deterioration, which is a big advancement for applications in the aerospace industry. Folded core structures were tested under combined transverse compression and shear in order to get the stiffness values and the failure criterion under a multi-axial stress state. For this purpose a new test device was developed, which allows a simultaneous application of shear and compression loads. The test results are presented and discussed using a nonlinear description of the stiffness and failure behaviour of the folded core structure. Additionally, the results are compared to the stiffness and the failure behaviour of honeycomb cores.

Document Type:Article
Title:Stiffness and failure behaviour of folded sandwich cores under combined transverse shear and compression
Authors:
AuthorsInstitution or Email of Authors
Kintscher, MarkusUNSPECIFIED
Kärger, LuiseUNSPECIFIED
Wetzel, AnjaUNSPECIFIED
Hartung, DanielUNSPECIFIED
Date:May 2007
Journal or Publication Title:Composites Part A
Refereed publication:Yes
In ISI Web of Science:Yes
Volume:38
DOI:10.1016/j.compositesa.2006.11.008
Page Range:pp. 1288-1295
Editors:
EditorsEmail
Wisnom, M.UNSPECIFIED
Publisher:Elsevier
Status:Published
Keywords:Sandwich core; B. Transverse cracking; C. Damage mechanics; D. Mechanical testing
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: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Structural Mechanics
Deposited By: Doris Ries
Deposited On:11 Sep 2008
Last Modified:27 Apr 2009 12:56

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