da Cunha, Fábio Ribeiro Soares and Wille, Tobias and Degenhardt, Richard and Sinapius, Michael and de Araújo, Francisco Célio and Zimmermann, Rolf (2014) A robustness-based design strategy for composite structures – probabilistic approach. Aircraft Engineering and Aerospace Technology, 86 (4), pp. 262-273. Emerald Group Publishing Ltd.. doi: 10.1108/AEAT-04-2013-0071. ISBN 1748-8842. ISSN 1748-8842.
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Official URL: http://www.emeraldinsight.com/1748-8842.htm
Abstract
Purpose – The purpose of this paper is to present the probabilistic approach to a new robustness-based design strategy for thin-walled composite structures in post-buckling. Design/methodology/approach – Because inherent uncertainties in geometry, material properties, ply orientation and thickness affect the structural performance and robustness, these variations are taken into account. Findings – The methodology is demonstrated for the sake of simplicity with an unstiffened composite plate under compressive loading, and the probabilistic and deterministic results are compared. In this context, the structural energy and uncertainties are employed to investigate the robustness and reliability of thin-walled composite structures in post-buckling. Practical implications – As practical implication, the methodology can be extended to stiffened shells, widely used in aerospace design with the aim to satisfy weight, strength and robustness requirements. Moreover, a new argument is strengthened to accept the collapse close to ultimate load once robustness is ensured with a required reliability. Originality/value – This innovative strategy embedded in a probabilistic framework might lead to a different design selection when compared to a deterministic approach, or an approach that only accounts for the ultimate load. Moreover, robustness measures are redefined in the context of a probabilistic design.
Item URL in elib: | https://elib.dlr.de/90102/ | |||||||||||||||||||||
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Document Type: | Article | |||||||||||||||||||||
Title: | A robustness-based design strategy for composite structures – probabilistic approach | |||||||||||||||||||||
Authors: |
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Date: | August 2014 | |||||||||||||||||||||
Journal or Publication Title: | Aircraft Engineering and Aerospace Technology | |||||||||||||||||||||
Refereed publication: | Yes | |||||||||||||||||||||
Open Access: | No | |||||||||||||||||||||
Gold Open Access: | No | |||||||||||||||||||||
In SCOPUS: | Yes | |||||||||||||||||||||
In ISI Web of Science: | Yes | |||||||||||||||||||||
Volume: | 86 | |||||||||||||||||||||
DOI : | 10.1108/AEAT-04-2013-0071 | |||||||||||||||||||||
Page Range: | pp. 262-273 | |||||||||||||||||||||
Publisher: | Emerald Group Publishing Ltd. | |||||||||||||||||||||
ISSN: | 1748-8842 | |||||||||||||||||||||
ISBN: | 1748-8842 | |||||||||||||||||||||
Status: | Published | |||||||||||||||||||||
Keywords: | Structural robustness, Structural reliability, Thin-walled composite structures, Post-buckling | |||||||||||||||||||||
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 (old) | |||||||||||||||||||||
Location: | Braunschweig | |||||||||||||||||||||
Institutes and Institutions: | Institute of Composite Structures and Adaptive Systems > Structural Mechanics | |||||||||||||||||||||
Deposited By: | Degenhardt, Richard | |||||||||||||||||||||
Deposited On: | 11 Aug 2014 08:09 | |||||||||||||||||||||
Last Modified: | 06 Sep 2019 15:18 |
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