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High-fidelity design methods to determine knockdown factors for the buckling load of axially loaded composite cylindrical shells

Wagner, H.N.R. and Hühne, C. and Niemann, S. and Weiß, L. (2017) High-fidelity design methods to determine knockdown factors for the buckling load of axially loaded composite cylindrical shells. CRC Press. Shell Structures: Theory and Applications, 11-13. Okt. - 2017, Gdansk, Poland. ISBN ISBN 9781138050457 - CAT# K33087

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Abstract

The design of thin-walled structures still relies on empirical guidelines like the NASA SP-8007 for cylinders up till now. This lower-bound guideline does not include important mechanical properties of laminated composite materials, such as the stacking sequence. New design approaches that allow taking full advantage of composite materials are therefore required. Within this paper newly developed innovative design approaches for axially loaded cylindrical shells are pre-sented and validated by means of high-fidelity buckling experiments of unstiffened composite cylinders. The considered composite shells were designed, manufactured and tested at the German Aerospace Center (DLR) in Braunschweig. The results show that the buckling load can be determined very accurately in contrast to the previous methodology.

Item URL in elib:https://elib.dlr.de/118226/
Document Type:Conference or Workshop Item (Speech)
Title:High-fidelity design methods to determine knockdown factors for the buckling load of axially loaded composite cylindrical shells
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Wagner, H.N.R.ronald.wagner (at) dlr.deUNSPECIFIED
Hühne, C.christian.hühne (at) dlr.deUNSPECIFIED
Niemann, S.steffen.niemann (at) dlr.deUNSPECIFIED
Weiß, L.lennart.weiß (at) dlr.deUNSPECIFIED
Date:17 September 2017
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:4
Editors:
EditorsEmail
Pietraszkiewicz, WojciechUNSPECIFIED
Witkowski, WojciechUNSPECIFIED
Publisher:CRC Press
Series Name:Shell Structures: Theory and Applications
ISBN:ISBN 9781138050457 - CAT# K33087
Status:Published
Keywords:Buckling, imperfection, cylinder, knockdown factor
Event Title:Shell Structures: Theory and Applications
Event Location:Gdansk, Poland
Event Type:international Conference
Event Dates:11-13. Okt. - 2017
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transport
DLR - Research area:Raumfahrt
DLR - Program:R RP - Raumtransport
DLR - Research theme (Project):R - Raumfahrzeugsysteme - Numerische Verfahren und Simulation
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Functional Lightweight Structures
Deposited By: Wagner, Ronald
Deposited On:16 Jan 2018 07:22
Last Modified:31 Jul 2019 20:15

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