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Experiments to Detect Damage Progression in Axially Compressed CFRP Panels Under Cyclic Loading

Degenhardt, Richard und Wilckens, Dirk und Klein, Herrmann und Kling, Alexander und Hillger, Wolfgang und Goetting, Hans Christian und Rohwer, Klaus und Gleiter, Andreas (2007) Experiments to Detect Damage Progression in Axially Compressed CFRP Panels Under Cyclic Loading. Key Engineering Materials, 38, Seiten 1-24. Trans Tech Publications Inc.. ISSN 1013-9826.

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Offizielle URL: http://www.scientific.net/0-87849-377-8/1/

Kurzfassung

The aircraft industry strives for significantly reduced development and operating costs. Reduction of structural weight at safe design is one possibility to reach this objective which is aimed by the running EU project COCOMAT. The main objective of COCOMAT is a future design scenario for composite curved stiffened panels which are understood as parts of real aircraft structures. This design scenario exploits considerable reserve carrying capacities in fibre composite fuselage structures by accurate simulation of collapse. The project results will comprise an experimental data base, improved slow and fast computational tools as well as design guidelines. A reliable simulation of the collapse load requires also taking degradation into account. For the validation of the tools a sound database of experiments are needed which give information about the progress of damage during the loading process. This paper focuses on experimental results of four nominally identical CFRP panels tested within the COCOMAT project at the buckling test facility of the Institute of Composite Structures and Adaptive Systems (DLR). In a first step, three of the four panels were loaded several thousand times. Each time the panel was loaded beyond global buckling and was unloaded to zero. Finally, all panels were tested until collapse. During the tests, advanced measurement systems such as High-Speed-ARAMIS, thermography and Lamb-waves were applied. The test results given in this paper may be used as benchmarks.

Dokumentart:Zeitschriftenbeitrag
Titel:Experiments to Detect Damage Progression in Axially Compressed CFRP Panels Under Cyclic Loading
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Degenhardt, RichardNICHT SPEZIFIZIERT
Wilckens, DirkNICHT SPEZIFIZIERT
Klein, HerrmannNICHT SPEZIFIZIERT
Kling, AlexanderNICHT SPEZIFIZIERT
Hillger, WolfgangNICHT SPEZIFIZIERT
Goetting, Hans ChristianNICHT SPEZIFIZIERT
Rohwer, KlausNICHT SPEZIFIZIERT
Gleiter, AndreasUniversität Stuttgart
Datum:2007
Erschienen in:Key Engineering Materials
Referierte Publikation:Ja
In ISI Web of Science:Nein
Band:38
Seitenbereich:Seiten 1-24
Herausgeber:
HerausgeberInstitution und/oder E-Mail-Adresse der Herausgeber
Armanios, E.A.NICHT SPEZIFIZIERT
Verlag:Trans Tech Publications Inc.
ISSN:1013-9826
Status:veröffentlicht
Stichwörter:stability, tests, composites structures, buckling, post buckling, collapse, skin-stringer separation, degradation, cyclic loading
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Luftfahrt
HGF - Programmthema:Starrflügler
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L AR - Starrflüglerforschung
DLR - Teilgebiet (Projekt, Vorhaben):L - Strukturen & Werkstoffe
Standort: Braunschweig
Institute & Einrichtungen:Institut für Faserverbundleichtbau und Adaptronik > Strukturmechanik
Hinterlegt von: Doris Ries
Hinterlegt am:21 Mai 2008
Letzte Änderung:14 Jan 2010 23:34

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