An approach to the optimization of thin-walled cantilever open section beams

An approach to the optimization of the thin-walled cantilever open section beams subjected to the bending and to the constrained torsion is considered. The problem is reduced to the determination of minimum mass, i.e. minimum cross-sectional area of structural thin-walled I-beam and channel-section...

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Main Authors: Anđelić Nina, Milošević-Mitić Vesna
Format: Article
Language:English
Published: Serbian Society of Mechanics & Mathematical Institute of the Serbian Academy of Sciences and Arts, Belgrade 2007-01-01
Series:Theoretical and Applied Mechanics
Subjects:
Online Access:http://www.doiserbia.nb.rs/img/doi/1450-5584/2007/1450-55840704323A.pdf
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author Anđelić Nina
Milošević-Mitić Vesna
author_facet Anđelić Nina
Milošević-Mitić Vesna
author_sort Anđelić Nina
collection DOAJ
description An approach to the optimization of the thin-walled cantilever open section beams subjected to the bending and to the constrained torsion is considered. The problem is reduced to the determination of minimum mass, i.e. minimum cross-sectional area of structural thin-walled I-beam and channel-section beam elements for given loads, material and geometrical characteristics. The area of the cross-section is assumed to be the objective function. The stress constraints are introduced. Applying the Lagrange multiplier method the equations, whose solutions represent the optimal values of the ratios of the parts of the chosen cross-section, are formed. The obtained results are used for numerical calculation.
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spelling doaj.art-3bc4b8555bff49078a5719e5d206d52a2022-12-21T23:37:30ZengSerbian Society of Mechanics & Mathematical Institute of the Serbian Academy of Sciences and Arts, BelgradeTheoretical and Applied Mechanics1450-55842007-01-0134432334010.2298/TAM0704323AAn approach to the optimization of thin-walled cantilever open section beamsAnđelić NinaMilošević-Mitić VesnaAn approach to the optimization of the thin-walled cantilever open section beams subjected to the bending and to the constrained torsion is considered. The problem is reduced to the determination of minimum mass, i.e. minimum cross-sectional area of structural thin-walled I-beam and channel-section beam elements for given loads, material and geometrical characteristics. The area of the cross-section is assumed to be the objective function. The stress constraints are introduced. Applying the Lagrange multiplier method the equations, whose solutions represent the optimal values of the ratios of the parts of the chosen cross-section, are formed. The obtained results are used for numerical calculation.http://www.doiserbia.nb.rs/img/doi/1450-5584/2007/1450-55840704323A.pdfoptimizationthin-walled beamsoptimal dimensionsobjective functionstress constraints
spellingShingle Anđelić Nina
Milošević-Mitić Vesna
An approach to the optimization of thin-walled cantilever open section beams
Theoretical and Applied Mechanics
optimization
thin-walled beams
optimal dimensions
objective function
stress constraints
title An approach to the optimization of thin-walled cantilever open section beams
title_full An approach to the optimization of thin-walled cantilever open section beams
title_fullStr An approach to the optimization of thin-walled cantilever open section beams
title_full_unstemmed An approach to the optimization of thin-walled cantilever open section beams
title_short An approach to the optimization of thin-walled cantilever open section beams
title_sort approach to the optimization of thin walled cantilever open section beams
topic optimization
thin-walled beams
optimal dimensions
objective function
stress constraints
url http://www.doiserbia.nb.rs/img/doi/1450-5584/2007/1450-55840704323A.pdf
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