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A robustness-based design strategy for composite structures – probabilistic approach

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

Full text not available from this repository.

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/
Document Type:Article
Title:A robustness-based design strategy for composite structures – probabilistic approach
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
da Cunha, Fábio Ribeiro SoaresDLRUNSPECIFIED
Wille, TobiasDLRUNSPECIFIED
Degenhardt, RichardDLRUNSPECIFIED
Sinapius, MichaelDLRUNSPECIFIED
de Araújo, Francisco CélioFederal University of Ouro PretoUNSPECIFIED
Zimmermann, RolfDLRUNSPECIFIED
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
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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