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FIRE PROTECTED CARBON FIBRE REINFORCED PLASTICS FOR STRUCTURAL AIRCRAFT COMPONENTS

Roese-Koerner, Imke und Schuh, Benjamin und Bachmann, Jens und Wierach, Peter (2015) FIRE PROTECTED CARBON FIBRE REINFORCED PLASTICS FOR STRUCTURAL AIRCRAFT COMPONENTS. 20th International Conference on Composite Materials, 19.-24.07.2015, Kopenhagen, Dänemark.

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Kurzfassung

The presented study deals with the optimization of fire properties of CFRP fuselage materials in a "pool-fire" scenario (a kerosene fire underneath an aircraft on ground) with the aim to increase the time until the structure fails. For this purpose hybrid material systems are being developed where the flame retardant is directly incorporated into the material. In this way, weight can be saved and the peeling effect, which is common for finishes, would be prevented. Due to the very high heat flux during a kerosene fire, powdered additives and layers are introduced into the composite, which form a thermal barrier or a barrier for gases in case of fire and protect the underlying structure from the effects of the flames. Of these materials, the fire behaviour with regard to smoke density and smoke toxicity is determined. The results show a significant reduction of smoke density for most of the tested materials and comply with the limits of toxic gases for cabin material systems. For a realistic relevelling of the “pool-fire” scenario, a test facility with a propane torch was build, which creates a heat flux of 180kW/m². In this test, the specimens are exposed to flames for 4min and the temperature profile at their backside is recorded with a thermocouple. In order to investigate the mechanical damage of the materials trough the fire, additional specimen were exposed to flame for 15s and the remaining compressive strength was determined. It was found that in particular a titanium foil under the top layer can contribute significantly to improvements in the mechanical properties as well as to slow down the temperature rise on the back of the material.

elib-URL des Eintrags:https://elib.dlr.de/97641/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:FIRE PROTECTED CARBON FIBRE REINFORCED PLASTICS FOR STRUCTURAL AIRCRAFT COMPONENTS
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Roese-Koerner, Imkeimke.roese-koerner (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Schuh, Benjaminbenjamin.schuh (at) dlr.dehttps://orcid.org/0000-0003-2962-7563NICHT SPEZIFIZIERT
Bachmann, Jensjens.bachmann (at) dlr.dehttps://orcid.org/0000-0001-7297-3272NICHT SPEZIFIZIERT
Wierach, Peterpeter.wierach (at) dlr.dehttps://orcid.org/0000-0003-0852-9112144717015
Datum:22 Juli 2015
Referierte Publikation:Ja
Open Access:Ja
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Status:veröffentlicht
Stichwörter:fire protection, fire resistance, hybrid composites
Veranstaltungstitel:20th International Conference on Composite Materials
Veranstaltungsort:Kopenhagen, Dänemark
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:19.-24.07.2015
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Luftfahrt
HGF - Programmthema:Flugzeuge
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L AR - Aircraft Research
DLR - Teilgebiet (Projekt, Vorhaben):L - Strukturen und Werkstoffe (alt), L - Faktor Mensch und Sicherheit in der Luftfahrt (alt)
Standort: Braunschweig , Trauen
Institute & Einrichtungen:Institut für Faserverbundleichtbau und Adaptronik > Multifunktionswerkstoffe
Institut für Antriebstechnik > Triebwerk
Hinterlegt von: Roese-Koerner, Imke
Hinterlegt am:10 Aug 2015 12:50
Letzte Änderung:18 Okt 2023 12:38

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