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Improving Impact Endangered CFRP Structures by Metal-Hybridisation

Stefaniak, Daniel and Kolesnikov, Boris and Kappel, Erik and Hühne, Christian (2012) Improving Impact Endangered CFRP Structures by Metal-Hybridisation. 12th European Conference on Spacecraft Structures, Materials & Environmental Testing, 20.-24. März 2012, Nordwijk, Niederlande.

Full text not available from this repository.

Abstract

In CFRP primary spacecraft structures the fraction of fibres aligned in load direction is limited due to the material’s notch and impact sensitivity. As a result, stiffness and strength per unit weight of the laminate on a given direction are lower than the corresponding values for a unidirectional composite. The present investigations show that the on-axis residual strength after impact can be increased significantly by interleaving thin steel foils in the UD-laminate. Grit-blasting, as a common pre-treatment process for stainless steel surfaces, is not feasible for thin foils due to the increased risk of damaging the metallic substrate. Therefore, different pickling processes are investigated as a non-mechanical alternative pre-treatment. Thus, superior adhesion properties are achieved compared to mechanical pre-treatments.

Item URL in elib:https://elib.dlr.de/75426/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:Improving Impact Endangered CFRP Structures by Metal-Hybridisation
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Stefaniak, Danieldaniel.stefaniak (at) dlr.deUNSPECIFIED
Kolesnikov, Borisboris.kolesnikov (at) dlr.deUNSPECIFIED
Kappel, Erikerik.kappel (at) dlr.deUNSPECIFIED
Hühne, Christianchristian.huehne (at) dlr.deUNSPECIFIED
Date:22 March 2012
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Accepted
Keywords:Hybrid, Fibre-Metal-Laminates
Event Title:12th European Conference on Spacecraft Structures, Materials & Environmental Testing
Event Location:Nordwijk, Niederlande
Event Type:international Conference
Event Dates:20.-24. März 2012
Organizer:ESA / ESTEC
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transport
DLR - Research area:Raumfahrt
DLR - Program:R RP - Raumtransport
DLR - Research theme (Project):R - Leitprojekt - Forschungsverbund Oberstufe
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Functional Lightweight Structures
Deposited By: Stefaniak, Daniel
Deposited On:10 Apr 2012 07:39
Last Modified:10 Apr 2012 07:39

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