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An approach for reliability-based robust design optimisation of angle-ply composites

Title
An approach for reliability-based robust design optimisation of angle-ply composites
Type
Article in International Scientific Journal
Year
2009
Authors
Luísa N. Hoffbauer
(Author)
Other
The person does not belong to the institution. The person does not belong to the institution. The person does not belong to the institution. Without AUTHENTICUS Without ORCID
Journal
Title: Composite StructuresImported from Authenticus Search for Journal Publications
Vol. 90 No. 1
Pages: 53-59
ISSN: 0263-8223
Publisher: Elsevier
Other information
Authenticus ID: P-003-FZX
Abstract (EN): Variations of manufacturing process parameters and environmental aspects may affect the quality and performance of composite materials, which consequently affects their structural behaviour. Reliability-based design optimisation (RBDO) and robust design optimisation (RDO) searches for safe structural systems with minimal variability of response when subjected to uncertainties in material design parameters. An approach that simultaneously considers reliability and robustness is proposed in this paper. Depending on a given reliability index imposed on composite structures, a trade-off is established between the performance targets and robustness. Robustness is expressed in terms of the coefficient of variation of the constrained structural response weighted by its nominal value. The Pareto normed front is built and the nearest point to the origin is estimated as the best solution of the bi-objective optimisation problem.
Language: English
Type (Professor's evaluation): Scientific
Contact: cantonio@fe.up.pt
No. of pages: 7
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