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conference paper

Post-wrinkling in GFRP cell-core sandwich webs

Manshadi, Behzad  
•
Vassilopoulos, Anastasios P.  
•
Keller, Thomas  
2014
Proceedings of the 7th International Conference on FRP Composites in Civil Engineering
CICE2014, The 7th International Conference on FRP Composites in Civil Engineering

The aims of this research is to experimentally investigate the post-wrinkling behavior in GFRP cell-core sandwiches with orthotropic webs as well as the applicability of existing theories, e.g. the rotated stress field theory, to orthotropic FRP material systems. Through biaxial compression-tension experiments on web-core panels, the redistribution of the strain field during post-wrinkling was examined for two different fiber architectures, [90/0] and [±45] stacking sequences. The results prove that the fiber architecture greatly influences the wrinkling loads, the wrinkling mode as well as the post-wrinkling behavior. Furthermore, the results show that taking into account the post-wrinkling behavior can increase the ultimate strength of the whole sandwich structure and/or add redundancy to the system which enhances the safety, functionality and reliability level of the structure.

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Type
conference paper
Author(s)
Manshadi, Behzad  
•
Vassilopoulos, Anastasios P.  
•
Keller, Thomas  
Date Issued

2014

Published in
Proceedings of the 7th International Conference on FRP Composites in Civil Engineering
Peer reviewed

NON-REVIEWED

Written at

EPFL

EPFL units
CCLAB  
Event nameEvent placeEvent date
CICE2014, The 7th International Conference on FRP Composites in Civil Engineering

Vancouver, Canada

August 20-22, 2014

Available on Infoscience
December 3, 2014
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/109194
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