elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Impressum | Datenschutz | Kontakt | English
Schriftgröße: [-] Text [+]

TESTING AND ANALYIS OF ANISOGRID PREPREG ELEMENT SPECIMEN UNDER UNIAXIAL TENSION AND COMPRESSION

Niemann, Steffen und Beerhorst, Matthias und Wagner, Ronald und Hühne, Christian (2015) TESTING AND ANALYIS OF ANISOGRID PREPREG ELEMENT SPECIMEN UNDER UNIAXIAL TENSION AND COMPRESSION. 20th International Conference on Composite Materials, 19.-24. Jul. 2015, Kopenhagen, Dänemark.

[img] PDF (ICCM20_FullPaper_SNiemann_DLR_submit) - Nur DLR-intern zugänglich
1MB

Kurzfassung

This paper reports on test results and analysis of Anisogrid Prepreg knot and rib specimen under uniaxial tension and compression. Due to the special knot design of the Anisogrid Prepreg structure concept, this investigation aims to characterize stiffness and strength properties for these two kinds of specimen. Integral Anisogrid structures contain intersecting, integral manufactured ribs with different directions (circumferential, axial, and/or helical) and optionally a load bearing skin. The classical manufacturing method for aerospace grid structures is wet-filament winding. For airframes, an Anisogrid Prepreg structure concept has been developed considering high quality assurance demands and the need of a State of Art manufacturing process (Advanced Fibre Placement). In this investigation, element-sized specimens of this Anisogrid Prepreg structure concept has been analysed and tested. This design concept consists of undisturbed and disturbed Prepreg layers with 60% fibre volume ratio, which are placed in an alternating pattern in the structure. Disturbed layers are cut in the point of intersecting rib directions. Due to the special stacking of the ribs with rectangular cross-section and very narrow ply widths, a wide reference testing program is used additionally. This means that in the testing program laminate specimens with typical stacking, rib test specimens cut out of a thick plate and manually laid rib and knot specimens have been produced, tested and compared to analytical strength calculations. As result, an answer is given which stiffness and strength properties in tension and compression can be expected for this Anisogrid Prepreg structure concept.

elib-URL des Eintrags:https://elib.dlr.de/97861/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:TESTING AND ANALYIS OF ANISOGRID PREPREG ELEMENT SPECIMEN UNDER UNIAXIAL TENSION AND COMPRESSION
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Niemann, Steffensteffen.niemann (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Beerhorst, Matthiasmatthias.beerhorst (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Wagner, Ronaldronald.wagner (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Hühne, Christianchristian.huehne (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:Juli 2015
Referierte Publikation:Ja
Open Access:Nein
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Status:veröffentlicht
Stichwörter:Anisogrid, Analysis, Test, Properties, Tension, Compression, Airframe
Veranstaltungstitel:20th International Conference on Composite Materials
Veranstaltungsort:Kopenhagen, Dänemark
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:19.-24. Jul. 2015
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Luftfahrt
HGF - Programmthema:Luftverkehrsmanagement und Flugbetrieb
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L AO - Air Traffic Management and Operation
DLR - Teilgebiet (Projekt, Vorhaben):L - Lufttransportkonzepte und Betrieb (alt)
Standort: Braunschweig
Institute & Einrichtungen:Institut für Faserverbundleichtbau und Adaptronik > Funktionsleichtbau
Hinterlegt von: Niemann, Herr Steffen
Hinterlegt am:27 Sep 2015 17:51
Letzte Änderung:20 Jun 2021 15:46

Nur für Mitarbeiter des Archivs: Kontrollseite des Eintrags

Blättern
Suchen
Hilfe & Kontakt
Informationen
electronic library verwendet EPrints 3.3.12
Gestaltung Webseite und Datenbank: Copyright © Deutsches Zentrum für Luft- und Raumfahrt (DLR). Alle Rechte vorbehalten.