Weiß, Lennart and Köke, Hardy and Hühne, Christian (2013) Simplified modelling of stiffened panels for simultaneous static and dynamic optimization. In: Research and Applications in Structural Engineering, Mechanics and Computation - Proceedings of the 5th International Conference on Structural Engineering, Mechanics and Computation, SEMC 2013. CRC Press. 5th International Conference on Structural Engineering, Mechanics and Computation, SEMC 2013, 2.-4. September 2013, Cape Town, South Africa. ISBN 978-113800061-2
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Abstract
In this paper a novel simplified structural modelling approach for stiffened panels is presented. It specifically addresses structural response of aircraft fuselage components made from carbon fibre reinforced plastics (CFRP). The proposed method considers structural modelling requirements necessary for structural optimisation with respect to system response under simultaneous static and dynamic loads. The standard explicit finite element (FE) solver LS-Dyna is utilised, providing the framework to regard statics and dynamics as well as non-linearities by material, large deformation and contact. The simplified model is fundamentally composed of shell, beam, and discrete elements. Simulating the structural collapse behaviour of thin-walled CFRP sections under bending load the detailed model provides input parameters for the discrete elements. Furthermore, skinframe- interaction attributes immanent to the present fuselage configuration are reviewed and considered by idealised deformation characteristics. Finally, the present approach is verified through analyses of the detailed model. The results illustrate the benefits of model simplification. Replacing detailed shell model features by beam and non-linear spring elements significantly reduces computational effort. At the same time the accuracy deduction is acceptable considering topological optimisation requirements.
Item URL in elib: | https://elib.dlr.de/95006/ | ||||||||||||
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Document Type: | Conference or Workshop Item (Speech) | ||||||||||||
Title: | Simplified modelling of stiffened panels for simultaneous static and dynamic optimization | ||||||||||||
Authors: |
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Date: | September 2013 | ||||||||||||
Journal or Publication Title: | Research and Applications in Structural Engineering, Mechanics and Computation - Proceedings of the 5th International Conference on Structural Engineering, Mechanics and Computation, SEMC 2013 | ||||||||||||
Refereed publication: | Yes | ||||||||||||
Open Access: | No | ||||||||||||
Gold Open Access: | No | ||||||||||||
In SCOPUS: | No | ||||||||||||
In ISI Web of Science: | No | ||||||||||||
Editors: |
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Publisher: | CRC Press | ||||||||||||
ISBN: | 978-113800061-2 | ||||||||||||
Status: | Published | ||||||||||||
Keywords: | Simplified Structural Modelling, Composites, Simultaneous Static and Dynamic Optimisation | ||||||||||||
Event Title: | 5th International Conference on Structural Engineering, Mechanics and Computation, SEMC 2013 | ||||||||||||
Event Location: | Cape Town, South Africa | ||||||||||||
Event Type: | international Conference | ||||||||||||
Event Dates: | 2.-4. September 2013 | ||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||
HGF - Program: | Aeronautics | ||||||||||||
HGF - Program Themes: | fixed-wing aircraft | ||||||||||||
DLR - Research area: | Aeronautics | ||||||||||||
DLR - Program: | L AR - Aircraft Research | ||||||||||||
DLR - Research theme (Project): | L - Structures and Materials | ||||||||||||
Location: | Braunschweig | ||||||||||||
Institutes and Institutions: | Institute of Composite Structures and Adaptive Systems > Functional Lightweight Structures | ||||||||||||
Deposited By: | Weiß, Lennart | ||||||||||||
Deposited On: | 20 Jul 2015 12:45 | ||||||||||||
Last Modified: | 23 May 2016 22:54 |
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