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Towards Demisable Fiber Reinforced Plastics

Schleutker, Thorn und Gülhan, Ali und Röddecke, Susanne und Kaschnitz, Erhard und Merrifield, James und Beck, James (2021) Towards Demisable Fiber Reinforced Plastics. 11th IAASS Conference, 2021-10-19 - 2021-10-21, Virtual.

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Kurzfassung

For avoiding the Kessler syndrome, satellites in low Earth orbits must be removed in due time after the end of their service life by re-entering into the Earth's atmosphere. Active, controlled re-entry requires availability of thrusters and propellant at the end of the mission. Thus, the active re-entry comes at a high cost and reduces the available payload mass of a mission. It is accordingly desirable to leave the satellite to itself at the end of its life and allow it to re-enter in an uncontrolled way. Unfortunately, parts of such satellites can survive the destructive re-entry flight and may impact on the ground. These debris pose a risk to public safety if they go down over an inhabited area. Rules that limit the acceptable ground risk per mission to a specific threshold are therefore in place in many countries. The typical accepted risk is one incident in ten thousand missions (1:10 000). Fiber reinforced plastics (FRPs) have been considered easily demisable because of their organic matrices and the fact that they would be able to burn at ground conditions. However, wind tunnel tests have revealed that FRPs have a very high demise resistance and can act as an ablative heat shield. This results in FRPs generally being a problematic material in the ground risk assessment. The good news is that there have been material level tests that showed a desirable demise behavior, which resulted in higher demise rates. The goal of the COMP2DEM project is identifying the microscopic and macroscopic parameters that determine the demise process and phenomena and explaining the differences in the observed behavior. Based on this knowledge, new fiber-reinforced plastics with increased demisability shall be formulated. The presentation covers the first phase of the COMP2DEM project: the screening of different FRP variants by thermophysical material characterization and demise simulation in the arc heated wind tunnels of DLR. New FRPs with increased demisability are currently under development and an outlook on the developments in the project is given.

elib-URL des Eintrags:https://elib.dlr.de/147673/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:Towards Demisable Fiber Reinforced Plastics
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Schleutker, ThornThorn.Schleutker (at) dlr.dehttps://orcid.org/0000-0002-1833-2850NICHT SPEZIFIZIERT
Gülhan, AliAli.Guelhan (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Röddecke, SusanneSusanne.Roeddecke (at) invent-gmbh.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Kaschnitz, ErhardErhard.Kaschnitz (at) ogi.atNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Merrifield, Jamesjim.merrifield (at) fluidgravity.co.ukNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Beck, Jamesjames.beck (at) belstead.comNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:21 Oktober 2021
Referierte Publikation:Nein
Open Access:Ja
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Status:veröffentlicht
Stichwörter:Demise, Design for Demise, D4D, Entry Flight, Composites
Veranstaltungstitel:11th IAASS Conference
Veranstaltungsort:Virtual
Veranstaltungsart:internationale Konferenz
Veranstaltungsbeginn:19 Oktober 2021
Veranstaltungsende:21 Oktober 2021
Veranstalter :IAASS
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Raumfahrt
HGF - Programmthema:keine Zuordnung
DLR - Schwerpunkt:Raumfahrt
DLR - Forschungsgebiet:R - keine Zuordnung
DLR - Teilgebiet (Projekt, Vorhaben):R - keine Zuordnung
Standort: Köln-Porz
Institute & Einrichtungen:Institut für Aerodynamik und Strömungstechnik > Über- und Hyperschalltechnologien, KP
Hinterlegt von: Schleutker, Thorn
Hinterlegt am:10 Jan 2022 10:07
Letzte Änderung:24 Apr 2024 20:46

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