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Crash Testing of a CFRP Commercial Aircraft Sub-Cargo Fuselage Section

Delsart, David und Portemont, Gérald und Waimer, Matthias (2016) Crash Testing of a CFRP Commercial Aircraft Sub-Cargo Fuselage Section. In: Procedia Structural Integrity, 2, Seiten 2198-2205. Elsevier. 21st European Conference on Fracture, 20.-24. Juni 2016, Catania, Italy. doi: 10.1016/j.prostr.2016.06.275. ISSN 2452-3216.

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Kurzfassung

The paper addresses the testing at the ONERA (Office National d’Etudes et de Recherches Aérospatiales) crash tower of a subcargo demonstrator representative of new generation CFRP (carbon fiber reinforced polymer) commercial aircraft. The project was conducted within a technological platform coordinated by AIRBUS Germany, which aimed at designing, simulating and testing an innovative crashworthy sub-cargo structure. Technical activities were shared between AIRBUS Germany for the demonstrator design and manufacturing, DLR (German Aerospace Center) for the numerical analysis and ONERA for the crash test. The demonstrator was based on single aisle aircraft geometry and comprised 2 Integrated Cargo Units (ICU) equipped with Triggered Tube Segments (TTS) dedicated to energy absorption and CFRP stringer-stiffened skin. The crash concept was based on an integrated structural design which applied the “bend-frame-concept” where the cargo cross-beam acts as a bend frame and withstands the dynamic loads introduced by the TTS components. The testing configuration - loading system and instrumentation - was defined on the basis of numerical analysis performed by DLR at the fuselage section level. In that frame, a kinematic model with a 2-frames typical fuselage section and ICUs involving the “bend-frame” concept was numerically simulated, with the main objective to identify the loading conditions that apply at specific sections, notably those surrounding the ICU-frame coupling areas where the test fixtures were to be implemented. As the outcomes of these numerical works showed that bending/compression loading, at a specific ratio, shall be targeted in priority, the accordingly designed loading system thus consisted of articulated rigs maintaining both ends of the demonstrator. The testing was performed at the ONERA-Lille crash tower at a 6,7m/s impact velocity, with a 1050 kg trolley mass. The acquisition system cumulated a total of 48 channels, including force sensors (6), strain gauges (36), displacement laser sensors (5) and an accelerometer (1). Besides, 4 high-speed cameras were implemented to visualize the rupture phenomenon likely to develop during the crash test. Results confirmed the expected crash scenario, with the bending of the cargo cross-beams and the resulting progressive crushing of the TTS components.

elib-URL des Eintrags:https://elib.dlr.de/109048/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:Crash Testing of a CFRP Commercial Aircraft Sub-Cargo Fuselage Section
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Delsart, DavidoneraNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Portemont, GéraldoneraNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Waimer, Matthiasmatthias.waimer (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:Juni 2016
Erschienen in:Procedia Structural Integrity
Referierte Publikation:Ja
Open Access:Nein
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Band:2
DOI:10.1016/j.prostr.2016.06.275
Seitenbereich:Seiten 2198-2205
Verlag:Elsevier
Name der Reihe:Procedia structural integrity
ISSN:2452-3216
Status:veröffentlicht
Stichwörter:CFRP; aircraft; crash; testing
Veranstaltungstitel:21st European Conference on Fracture
Veranstaltungsort:Catania, Italy
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:20.-24. Juni 2016
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)
Standort: Stuttgart
Institute & Einrichtungen:Institut für Bauweisen und Strukturtechnologie > Strukturelle Integrität
Hinterlegt von: Waimer, Matthias
Hinterlegt am:19 Dez 2016 11:13
Letzte Änderung:20 Nov 2023 13:11

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